Update dependencies (#333)

14 files changed, 2258 insertions, 1254 deletions

diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_darwin_amd64.go b/vendor/modernc.org/libc/uuid/uuid/capi_darwin_amd64.go
index 20bfad1d6..caed84eea 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_darwin_amd64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_darwin_amd64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_amd64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_amd64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_darwin_arm64.go b/vendor/modernc.org/libc/uuid/uuid/capi_darwin_arm64.go
index cdc40459f..3c9d01350 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_darwin_arm64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_darwin_arm64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_arm64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_arm64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_linux_386.go b/vendor/modernc.org/libc/uuid/uuid/capi_linux_386.go
index 95e035a09..d663f55d5 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_linux_386.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_linux_386.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_386.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_386.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_linux_amd64.go b/vendor/modernc.org/libc/uuid/uuid/capi_linux_amd64.go
index c2014741e..1439e9a19 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_linux_amd64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_linux_amd64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_amd64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_amd64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm.go b/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm.go
index 7274a3aa3..ade9414ed 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm64.go b/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm64.go
index 514b53ac3..8fee6f780 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_linux_arm64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/capi_linux_s390x.go b/vendor/modernc.org/libc/uuid/uuid/capi_linux_s390x.go
index 9947209fd..41aa499d6 100644
--- a/vendor/modernc.org/libc/uuid/uuid/capi_linux_s390x.go
+++ b/vendor/modernc.org/libc/uuid/uuid/capi_linux_s390x.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_s390x.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path  -export-defines  -export-enums  -export-externs X -export-fields F -export-structs  -export-typedefs  -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_s390x.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_amd64.go b/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_amd64.go
index d10b60c7d..f89a2ba77 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_amd64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_amd64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_amd64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_amd64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -550,8 +550,8 @@ type X__darwin_ct_rune_t = int32 /* _types.h:70:33 */ // ct_rune_t
 // mbstate_t is an opaque object to keep conversion state, during multibyte
 // stream conversions.  The content must not be referenced by user programs.
 type X__mbstate_t = struct {
-	_           [0]uint64
-	F__mbstate8 [128]int8
+	F__ccgo_pad1 [0]uint64
+	F__mbstate8  [128]int8
 } /* _types.h:79:3 */
 
 type X__darwin_mbstate_t = X__mbstate_t /* _types.h:81:33 */ // mbstate_t
@@ -806,6 +806,4 @@ type Uuid_t = X__darwin_uuid_t /* _uuid_t.h:31:25 */
 
 type Uuid_string_t = X__darwin_uuid_string_t /* uuid.h:43:33 */
 
-var sUUID_NULL = Uuid_t{uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0)} /* uuid.h:49:1 */
-
 var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_arm64.go b/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_arm64.go
index 9778d02ba..db1932a95 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_arm64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_darwin_arm64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_arm64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_darwin_arm64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -788,6 +788,4 @@ type Uuid_t = X__darwin_uuid_t /* _uuid_t.h:31:25 */
 
 type Uuid_string_t = X__darwin_uuid_string_t /* uuid.h:43:33 */
 
-var sUUID_NULL = Uuid_t{uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0), uint8(0)} /* uuid.h:49:1 */
-
 var _ int8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_386.go b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_386.go
index 2ac3d0603..056cba55c 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_386.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_386.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_386.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_386.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -49,9 +49,12 @@ const (
 	UUID_VARIANT_SHIFT           = 5
 	X_ATFILE_SOURCE              = 1
 	X_BITS_BYTESWAP_H            = 1
+	X_BITS_ENDIANNESS_H          = 1
+	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_STDINT_INTN_H         = 1
+	X_BITS_TIME64_H              = 1
 	X_BITS_TIME_H                = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
@@ -65,8 +68,10 @@ const (
 	X_FEATURES_H                 = 1
 	X_FILE_OFFSET_BITS           = 64
 	X_GCC_SIZE_T                 = 0
+	X_ILP32                      = 1
 	X_POSIX_C_SOURCE             = 200809
 	X_POSIX_SOURCE               = 1
+	X_RWLOCK_INTERNAL_H          = 0
 	X_SIZET_                     = 0
 	X_SIZE_T                     = 0
 	X_SIZE_T_                    = 0
@@ -80,6 +85,7 @@ const (
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_TIME_H                 = 1
 	X_SYS_TYPES_H                = 1
+	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_TIME_H                     = 1
 	X_T_SIZE                     = 0
@@ -91,7 +97,7 @@ const (
 )
 
 // Values for the first argument to `getitimer' and `setitimer'.
-const ( /* time.h:88:1: */
+const ( /* time.h:89:1: */
 	// Timers run in real time.
 	ITIMER_REAL = 0
 	// Timers run only when the process is executing.
@@ -142,7 +148,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // DAMAGE.
 // %End-Header%
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -157,11 +163,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX Standard: 2.6 Primitive System Data Types	<sys/types.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -176,7 +182,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
@@ -184,6 +190,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
@@ -304,6 +311,8 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
+// This is to enable the ISO C2X extension.
+
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
@@ -326,9 +335,22 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -343,7 +365,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
@@ -356,7 +378,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -371,7 +393,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We are almost always included from features.h.
 
@@ -486,7 +508,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-//    semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
@@ -507,10 +529,14 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
 // Determine the wordsize from the preprocessor defines.
 
 // Properties of long double type.  ldbl-96 version.
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -525,7 +551,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // long double is distinct from double, so there is nothing to
 //    define here.
@@ -563,7 +589,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -578,11 +604,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -597,43 +623,63 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
+// Bit size of the time_t type at glibc build time, x86-64 and x32 case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For others, time size is word size.
+
 // Convenience types.
-type X__u_char = uint8   /* types.h:30:23 */
-type X__u_short = uint16 /* types.h:31:28 */
-type X__u_int = uint32   /* types.h:32:22 */
-type X__u_long = uint32  /* types.h:33:27 */
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint32  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
-type X__int8_t = int8     /* types.h:36:21 */
-type X__uint8_t = uint8   /* types.h:37:23 */
-type X__int16_t = int16   /* types.h:38:26 */
-type X__uint16_t = uint16 /* types.h:39:28 */
-type X__int32_t = int32   /* types.h:40:20 */
-type X__uint32_t = uint32 /* types.h:41:22 */
-type X__int64_t = int64   /* types.h:46:44 */
-type X__uint64_t = uint64 /* types.h:47:46 */
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:47:44 */
+type X__uint64_t = uint64 /* types.h:48:46 */
 
 // Smallest types with at least a given width.
-type X__int_least8_t = X__int8_t     /* types.h:51:18 */
-type X__uint_least8_t = X__uint8_t   /* types.h:52:19 */
-type X__int_least16_t = X__int16_t   /* types.h:53:19 */
-type X__uint_least16_t = X__uint16_t /* types.h:54:20 */
-type X__int_least32_t = X__int32_t   /* types.h:55:19 */
-type X__uint_least32_t = X__uint32_t /* types.h:56:20 */
-type X__int_least64_t = X__int64_t   /* types.h:57:19 */
-type X__uint_least64_t = X__uint64_t /* types.h:58:20 */
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
-type X__quad_t = int64    /* types.h:65:37 */
-type X__u_quad_t = uint64 /* types.h:66:46 */
+type X__quad_t = int64    /* types.h:66:37 */
+type X__u_quad_t = uint64 /* types.h:67:46 */
 
 // Largest integral types.
-type X__intmax_t = int64   /* types.h:74:37 */
-type X__uintmax_t = uint64 /* types.h:75:46 */
+type X__intmax_t = int64   /* types.h:75:37 */
+type X__uintmax_t = uint64 /* types.h:76:46 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
@@ -645,7 +691,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
-// 	QUAD		-- 64-bit type, always long long
+// 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
@@ -667,7 +713,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 // We want __extension__ before typedef's that use nonstandard base types
 //    such as `long long' in C89 mode.
 // bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
-//    Copyright (C) 2012-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2012-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -682,7 +728,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // See <bits/types.h> for the meaning of these macros.  This file exists so
 //    that <bits/types.h> need not vary across different GNU platforms.
@@ -691,76 +737,103 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 
 // Number of descriptors that can fit in an `fd_set'.
 
-type X__dev_t = X__u_quad_t                /* types.h:143:25 */ // Type of device numbers.
-type X__uid_t = uint32                     /* types.h:144:25 */ // Type of user identifications.
-type X__gid_t = uint32                     /* types.h:145:25 */ // Type of group identifications.
-type X__ino_t = uint32                     /* types.h:146:25 */ // Type of file serial numbers.
-type X__ino64_t = X__u_quad_t              /* types.h:147:27 */ // Type of file serial numbers (LFS).
-type X__mode_t = uint32                    /* types.h:148:26 */ // Type of file attribute bitmasks.
-type X__nlink_t = uint32                   /* types.h:149:27 */ // Type of file link counts.
-type X__off_t = int32                      /* types.h:150:25 */ // Type of file sizes and offsets.
-type X__off64_t = X__quad_t                /* types.h:151:27 */ // Type of file sizes and offsets (LFS).
-type X__pid_t = int32                      /* types.h:152:25 */ // Type of process identifications.
-type X__fsid_t = struct{ F__val [2]int32 } /* types.h:153:26 */ // Type of file system IDs.
-type X__clock_t = int32                    /* types.h:154:27 */ // Type of CPU usage counts.
-type X__rlim_t = uint32                    /* types.h:155:26 */ // Type for resource measurement.
-type X__rlim64_t = X__u_quad_t             /* types.h:156:28 */ // Type for resource measurement (LFS).
-type X__id_t = uint32                      /* types.h:157:24 */ // General type for IDs.
-type X__time_t = int32                     /* types.h:158:26 */ // Seconds since the Epoch.
-type X__useconds_t = uint32                /* types.h:159:30 */ // Count of microseconds.
-type X__suseconds_t = int32                /* types.h:160:31 */ // Signed count of microseconds.
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// Define a 64-bit time type alongsize the 32-bit one.
+
+type X__dev_t = X__uint64_t                /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint32                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = X__uint64_t              /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int32                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = X__int64_t               /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int32                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint32                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = X__uint64_t             /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int32                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int32                /* types.h:162:31 */ // Signed count of microseconds.
 
-type X__daddr_t = int32 /* types.h:162:27 */ // The type of a disk address.
-type X__key_t = int32   /* types.h:163:25 */ // Type of an IPC key.
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
-type X__clockid_t = int32 /* types.h:166:29 */
+type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
-type X__timer_t = uintptr /* types.h:169:12 */
+type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
-type X__blksize_t = int32 /* types.h:172:29 */
+type X__blksize_t = int32 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
-type X__blkcnt_t = int32       /* types.h:177:28 */
-type X__blkcnt64_t = X__quad_t /* types.h:178:30 */
+type X__blkcnt_t = int32        /* types.h:179:28 */
+type X__blkcnt64_t = X__int64_t /* types.h:180:30 */
 
 // Type to count file system blocks.
-type X__fsblkcnt_t = uint32        /* types.h:181:30 */
-type X__fsblkcnt64_t = X__u_quad_t /* types.h:182:32 */
+type X__fsblkcnt_t = uint32        /* types.h:183:30 */
+type X__fsblkcnt64_t = X__uint64_t /* types.h:184:32 */
 
 // Type to count file system nodes.
-type X__fsfilcnt_t = uint32        /* types.h:185:30 */
-type X__fsfilcnt64_t = X__u_quad_t /* types.h:186:32 */
+type X__fsfilcnt_t = uint32        /* types.h:187:30 */
+type X__fsfilcnt64_t = X__uint64_t /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
-type X__fsword_t = int32 /* types.h:189:28 */
+type X__fsword_t = int32 /* types.h:191:28 */
 
-type X__ssize_t = int32 /* types.h:191:27 */ // Type of a byte count, or error.
+type X__ssize_t = int32 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
-type X__syscall_slong_t = int32 /* types.h:194:33 */
+type X__syscall_slong_t = int32 /* types.h:196:33 */
 // Unsigned long type used in system calls.
-type X__syscall_ulong_t = uint32 /* types.h:196:33 */
+type X__syscall_ulong_t = uint32 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //    to one of the other defined types.
-type X__loff_t = X__off64_t /* types.h:200:19 */ // Type of file sizes and offsets (LFS).
-type X__caddr_t = uintptr   /* types.h:201:14 */
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
-type X__intptr_t = int32 /* types.h:204:25 */
+type X__intptr_t = int32 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
-type X__socklen_t = uint32 /* types.h:207:23 */
+type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //    even in the presence of asynchronous interrupts.
 //    It is not currently necessary for this to be machine-specific.
-type X__sig_atomic_t = int32 /* types.h:212:13 */
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+type X__time64_t = X__int64_t /* types.h:222:28 */
 
 type U_char = X__u_char     /* types.h:33:18 */
 type U_short = X__u_short   /* types.h:34:19 */
@@ -797,7 +870,7 @@ type Caddr_t = X__caddr_t /* types.h:115:19 */
 type Key_t = X__key_t /* types.h:121:17 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -812,7 +885,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -820,7 +893,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 type Clock_t = X__clock_t /* clock_t.h:7:19 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -835,7 +908,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -843,7 +916,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -858,7 +931,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -866,7 +939,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 type Time_t = X__time_t /* time_t.h:7:18 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -881,7 +954,7 @@ type Time_t = X__time_t /* time_t.h:7:18 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -896,11 +969,6 @@ type Timer_t = X__timer_t /* timer_t.h:7:19 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Old compatibility names for C types.
@@ -911,7 +979,7 @@ type Uint = uint32   /* types.h:150:22 */
 // These size-specific names are used by some of the inet code.
 
 // Define intN_t types.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -926,10 +994,10 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -944,7 +1012,7 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -953,18 +1021,17 @@ type Int16_t = X__int16_t /* stdint-intn.h:25:19 */
 type Int32_t = X__int32_t /* stdint-intn.h:26:19 */
 type Int64_t = X__int64_t /* stdint-intn.h:27:19 */
 
-// For GCC 2.7 and later, we can use specific type-size attributes.
+// These were defined by ISO C without the first `_'.
+type U_int8_t = X__uint8_t   /* types.h:158:19 */
+type U_int16_t = X__uint16_t /* types.h:159:20 */
+type U_int32_t = X__uint32_t /* types.h:160:20 */
+type U_int64_t = X__uint64_t /* types.h:161:20 */
 
-type U_int8_t = uint32  /* types.h:177:1 */
-type U_int16_t = uint32 /* types.h:178:1 */
-type U_int32_t = uint32 /* types.h:179:1 */
-type U_int64_t = uint32 /* types.h:180:1 */
-
-type Register_t = int32 /* types.h:182:13 */
+type Register_t = int32 /* types.h:164:13 */
 
 // It also defines `fd_set' and the FD_* macros for `select'.
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -979,11 +1046,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -998,11 +1065,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Get definition of needed basic types.
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1017,12 +1084,12 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Get __FD_* definitions.
-// Copyright (C) 1997-2018 Free Software Foundation, Inc.
+// Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1037,7 +1104,7 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
@@ -1051,7 +1118,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 // Get definition of timer specification structures.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1066,7 +1133,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1080,7 +1147,7 @@ type Timeval = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1095,16 +1162,34 @@ type Timeval = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //    has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
-} /* struct_timespec.h:9:1 */
+} /* struct_timespec.h:10:1 */
 
 type Suseconds_t = X__suseconds_t /* select.h:43:23 */
 
@@ -1124,16 +1209,16 @@ type Fd_mask = X__fd_mask /* select.h:77:19 */
 
 // Define some inlines helping to catch common problems.
 
-type Blksize_t = X__blksize_t /* types.h:202:21 */
+type Blksize_t = X__blksize_t /* types.h:185:21 */
 
 // Types from the Large File Support interface.
-type Blkcnt_t = X__blkcnt64_t     /* types.h:222:22 */ // Type to count number of disk blocks.
-type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:226:24 */ // Type to count file system blocks.
-type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file system inodes.
+type Blkcnt_t = X__blkcnt64_t     /* types.h:205:22 */ // Type to count number of disk blocks.
+type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:209:24 */ // Type to count file system blocks.
+type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:213:24 */ // Type to count file system inodes.
 
 // Now add the thread types.
 // Declaration of common pthread types for all architectures.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1148,11 +1233,11 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1167,7 +1252,7 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
@@ -1182,35 +1267,95 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
-//    Also, the following macros must be define for internal pthread_mutex_t
-//    struct definitions (struct __pthread_mutex_s):
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
+//
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
+//
+//    Same idea but for the once locking primitive:
+//
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    __PTHREAD_COMPAT_PADDING_MID   - any additional members after 'kind'
-// 				    and before '__spin' (for 64 bits) or
-// 				    '__nusers' (for 32 bits).
-//    __PTHREAD_COMPAT_PADDING_END   - any additional members at the end of
-// 				    the internal structure.
-//    __PTHREAD_MUTEX_LOCK_ELISION   - 1 if the architecture supports lock
-// 				    elision or 0 otherwise.
-//    __PTHREAD_MUTEX_NUSERS_AFTER_KIND - control where to put __nusers.  The
-// 				       preferred value for new architectures
-// 				       is 0.
-//    __PTHREAD_MUTEX_USE_UNION      - control whether internal __spins and
-// 				    __list will be place inside a union for
-// 				    linuxthreads compatibility.
-// 				    The preferred value for new architectures
-// 				    is 0.
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-//    For a new port the preferred values for the required defines are:
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Extra attributes for the cleanup functions.
+
+// Common definition of pthread_mutex_t.
+
+type X__pthread_internal_list = struct {
+	F__prev uintptr
+	F__next uintptr
+} /* thread-shared-types.h:49:9 */
+
+// Type to count file system inodes.
+
+// Now add the thread types.
+// Declaration of common pthread types for all architectures.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
 //
-//    #define __PTHREAD_COMPAT_PADDING_MID
-//    #define __PTHREAD_COMPAT_PADDING_END
-//    #define __PTHREAD_MUTEX_LOCK_ELISION         0
-//    #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND    0
-//    #define __PTHREAD_MUTEX_USE_UNION            0
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    __PTHREAD_MUTEX_LOCK_ELISION can be set to 1 if the hardware plans to
-//    eventually support lock elision using transactional memory.
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
@@ -1220,11 +1365,8 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
-//
-//    And finally the internal pthread_rwlock_t (struct __pthread_rwlock_arch_t)
-//    must be defined.
-//
-// Copyright (C) 2002-2018 Free Software Foundation, Inc.
+
+// Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1239,39 +1381,51 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
-// Definitions for internal mutex struct.
-
-type X__pthread_rwlock_arch_t = struct {
-	F__readers       uint32
-	F__writers       uint32
-	F__wrphase_futex uint32
-	F__writers_futex uint32
-	F__pad3          uint32
-	F__pad4          uint32
-	F__flags         uint8
-	F__shared        uint8
-	F__rwelision     int8
-	F__pad2          uint8
-	F__cur_writer    int32
-} /* pthreadtypes-arch.h:65:1 */
-
 // Extra attributes for the cleanup functions.
 
 // Common definition of pthread_mutex_t.
 
-type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:88:9 */
+type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
 
-// Extra attributes for the cleanup functions.
+type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
 
-// Common definition of pthread_mutex_t.
+type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
 
-type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:91:3 */
+// Arch-specific mutex definitions.  A generic implementation is provided
+//    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
+//    can override it by defining:
+//
+//    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
+//       definition).  It should contains at least the internal members
+//       defined in the generic version.
+//
+//    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
+//       atomic operations.
+//
+//    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
+//       It should initialize the mutex internal flag.
 
-// Lock elision support.
+// x86 internal mutex struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
 
 type X__pthread_mutex_s = struct {
 	F__lock   int32
@@ -1280,13 +1434,57 @@ type X__pthread_mutex_s = struct {
 	F__kind   int32
 	F__nusers uint32
 	F__20     struct {
-		_               [0]uint32
+		F__ccgo_pad1    [0]uint32
 		F__elision_data struct {
 			F__espins   int16
 			F__eelision int16
 		}
 	}
-} /* thread-shared-types.h:118:1 */
+} /* struct_mutex.h:22:1 */
+
+// Arch-sepecific read-write lock definitions.  A generic implementation is
+//    provided by struct_rwlock.h.  If required, an architecture can override it
+//    by defining:
+//
+//    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
+//       It should contain at least the internal members defined in the
+//       generic version.
+//
+//    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
+//       It should initialize the rwlock internal type.
+
+// x86 internal rwlock struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+type X__pthread_rwlock_arch_t = struct {
+	F__readers       uint32
+	F__writers       uint32
+	F__wrphase_futex uint32
+	F__writers_futex uint32
+	F__pad3          uint32
+	F__pad4          uint32
+	F__flags         uint8
+	F__shared        uint8
+	F__rwelision     int8
+	F__pad2          uint8
+	F__cur_writer    int32
+} /* struct_rwlock.h:23:1 */
 
 // Common definition of pthread_cond_t.
 
@@ -1298,7 +1496,7 @@ type X__pthread_cond_s = struct {
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
-} /* thread-shared-types.h:171:1 */
+} /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //    exposed on purpose.
@@ -1307,15 +1505,15 @@ type Pthread_t = uint32 /* pthreadtypes.h:27:27 */
 // Data structures for mutex handling.  The structure of the attribute
 //    type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]int8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //    the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]int8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
@@ -1325,8 +1523,8 @@ type Pthread_key_t = uint32 /* pthreadtypes.h:49:22 */
 type Pthread_once_t = int32 /* pthreadtypes.h:53:30 */
 
 type Pthread_attr_t1 = struct {
-	_       [0]uint32
-	F__size [36]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [36]int8
 } /* pthreadtypes.h:56:1 */
 
 type Pthread_attr_t = Pthread_attr_t1 /* pthreadtypes.h:62:30 */
@@ -1340,8 +1538,8 @@ type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
-	_       [0]uint32
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [8]int8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
@@ -1350,16 +1548,16 @@ type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 // POSIX barriers data type.  The structure of the type is
 //    deliberately not exposed.
 type Pthread_barrier_t = struct {
-	_       [0]uint32
-	F__size [20]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [20]int8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]int8
 } /* pthreadtypes.h:118:3 */
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1374,9 +1572,9 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1391,10 +1589,10 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1409,12 +1607,12 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1429,7 +1627,7 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
@@ -1440,8 +1638,6 @@ type Timezone = struct {
 	Ftz_dsttime     int32
 } /* time.h:52:1 */
 
-type X__timezone_ptr_t = uintptr /* time.h:58:25 */
-
 // Type of the second argument to `getitimer' and
 //    the second and third arguments `setitimer'.
 type Itimerval = struct {
@@ -1453,14 +1649,14 @@ type Itimerval = struct {
 		Ftv_sec  X__time_t
 		Ftv_usec X__suseconds_t
 	}
-} /* time.h:104:1 */
+} /* time.h:105:1 */
 
-type X__itimer_which_t = int32 /* time.h:117:13 */
+type X__itimer_which_t = int32 /* time.h:118:13 */
 
 // Convenience macros for operations on timevals.
 //    NOTE: `timercmp' does not work for >= or <=.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1475,11 +1671,11 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	ISO C99 Standard: 7.23 Date and time	<time.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1494,9 +1690,9 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1989-2018 Free Software Foundation, Inc.
+// Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -1528,15 +1724,6 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
-// On 4.3bsd-net2, make sure ansi.h is included, so we have
-//    one less case to deal with in the following.
-// On FreeBSD 5, machine/ansi.h does not exist anymore...
-
-// In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
-//    defined if the corresponding type is *not* defined.
-//    FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
-//    NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_
-
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
@@ -1571,17 +1758,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // This defines CLOCKS_PER_SEC, which is the number of processor clock
 //    ticks per second, and possibly a number of other constants.
 // System-dependent timing definitions.  Linux version.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1596,12 +1778,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <time.h> instead.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1616,7 +1798,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1645,7 +1827,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //    may also need to be defined by other headers.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1660,7 +1842,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1682,7 +1864,7 @@ type Tm = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1697,7 +1879,7 @@ type Tm = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1716,7 +1898,7 @@ type Itimerspec = struct {
 } /* struct_itimerspec.h:8:1 */
 
 // Definition of locale_t.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1731,10 +1913,10 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Definition of struct __locale_struct and __locale_t.
-//    Copyright (C) 1997-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 //
@@ -1750,7 +1932,7 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // POSIX.1-2008: the locale_t type, representing a locale context
 //    (implementation-namespace version).  This type should be treated
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_amd64.go b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_amd64.go
index d49ff63e1..84c78a0e5 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_amd64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_amd64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_amd64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_amd64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -49,9 +49,12 @@ const (
 	UUID_VARIANT_SHIFT           = 5
 	X_ATFILE_SOURCE              = 1
 	X_BITS_BYTESWAP_H            = 1
+	X_BITS_ENDIANNESS_H          = 1
+	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_STDINT_INTN_H         = 1
+	X_BITS_TIME64_H              = 1
 	X_BITS_TIME_H                = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
@@ -68,6 +71,7 @@ const (
 	X_LP64                       = 1
 	X_POSIX_C_SOURCE             = 200809
 	X_POSIX_SOURCE               = 1
+	X_RWLOCK_INTERNAL_H          = 0
 	X_SIZET_                     = 0
 	X_SIZE_T                     = 0
 	X_SIZE_T_                    = 0
@@ -81,6 +85,7 @@ const (
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_TIME_H                 = 1
 	X_SYS_TYPES_H                = 1
+	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_TIME_H                     = 1
 	X_T_SIZE                     = 0
@@ -91,7 +96,7 @@ const (
 )
 
 // Values for the first argument to `getitimer' and `setitimer'.
-const ( /* time.h:88:1: */
+const ( /* time.h:89:1: */
 	// Timers run in real time.
 	ITIMER_REAL = 0
 	// Timers run only when the process is executing.
@@ -151,7 +156,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // DAMAGE.
 // %End-Header%
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -166,11 +171,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX Standard: 2.6 Primitive System Data Types	<sys/types.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -185,7 +190,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
@@ -193,6 +198,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
@@ -313,6 +319,8 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
+// This is to enable the ISO C2X extension.
+
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
@@ -335,9 +343,22 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -352,7 +373,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
@@ -365,7 +386,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -380,7 +401,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We are almost always included from features.h.
 
@@ -495,7 +516,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-//    semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
@@ -516,11 +537,15 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
 // Determine the wordsize from the preprocessor defines.
 
 // Both x86-64 and x32 use the 64-bit system call interface.
 // Properties of long double type.  ldbl-96 version.
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -535,7 +560,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // long double is distinct from double, so there is nothing to
 //    define here.
@@ -573,7 +598,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -588,11 +613,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -607,45 +632,64 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Both x86-64 and x32 use the 64-bit system call interface.
+// Bit size of the time_t type at glibc build time, x86-64 and x32 case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For others, time size is word size.
 
 // Convenience types.
-type X__u_char = uint8   /* types.h:30:23 */
-type X__u_short = uint16 /* types.h:31:28 */
-type X__u_int = uint32   /* types.h:32:22 */
-type X__u_long = uint64  /* types.h:33:27 */
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
-type X__int8_t = int8     /* types.h:36:21 */
-type X__uint8_t = uint8   /* types.h:37:23 */
-type X__int16_t = int16   /* types.h:38:26 */
-type X__uint16_t = uint16 /* types.h:39:28 */
-type X__int32_t = int32   /* types.h:40:20 */
-type X__uint32_t = uint32 /* types.h:41:22 */
-type X__int64_t = int64   /* types.h:43:25 */
-type X__uint64_t = uint64 /* types.h:44:27 */
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
 
 // Smallest types with at least a given width.
-type X__int_least8_t = X__int8_t     /* types.h:51:18 */
-type X__uint_least8_t = X__uint8_t   /* types.h:52:19 */
-type X__int_least16_t = X__int16_t   /* types.h:53:19 */
-type X__uint_least16_t = X__uint16_t /* types.h:54:20 */
-type X__int_least32_t = X__int32_t   /* types.h:55:19 */
-type X__uint_least32_t = X__uint32_t /* types.h:56:20 */
-type X__int_least64_t = X__int64_t   /* types.h:57:19 */
-type X__uint_least64_t = X__uint64_t /* types.h:58:20 */
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
-type X__quad_t = int64    /* types.h:62:18 */
-type X__u_quad_t = uint64 /* types.h:63:27 */
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
 
 // Largest integral types.
-type X__intmax_t = int64   /* types.h:71:18 */
-type X__uintmax_t = uint64 /* types.h:72:27 */
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
@@ -657,7 +701,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
-// 	QUAD		-- 64-bit type, always long long
+// 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
@@ -678,7 +722,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 
 // No need to mark the typedef with __extension__.
 // bits/typesizes.h -- underlying types for *_t.  Linux/x86-64 version.
-//    Copyright (C) 2012-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2012-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -693,7 +737,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // See <bits/types.h> for the meaning of these macros.  This file exists so
 //    that <bits/types.h> need not vary across different GNU platforms.
@@ -708,78 +752,106 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 
 // And for __rlim_t and __rlim64_t.
 
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
 // Number of descriptors that can fit in an `fd_set'.
 
-type X__dev_t = uint64                     /* types.h:143:25 */ // Type of device numbers.
-type X__uid_t = uint32                     /* types.h:144:25 */ // Type of user identifications.
-type X__gid_t = uint32                     /* types.h:145:25 */ // Type of group identifications.
-type X__ino_t = uint64                     /* types.h:146:25 */ // Type of file serial numbers.
-type X__ino64_t = uint64                   /* types.h:147:27 */ // Type of file serial numbers (LFS).
-type X__mode_t = uint32                    /* types.h:148:26 */ // Type of file attribute bitmasks.
-type X__nlink_t = uint64                   /* types.h:149:27 */ // Type of file link counts.
-type X__off_t = int64                      /* types.h:150:25 */ // Type of file sizes and offsets.
-type X__off64_t = int64                    /* types.h:151:27 */ // Type of file sizes and offsets (LFS).
-type X__pid_t = int32                      /* types.h:152:25 */ // Type of process identifications.
-type X__fsid_t = struct{ F__val [2]int32 } /* types.h:153:26 */ // Type of file system IDs.
-type X__clock_t = int64                    /* types.h:154:27 */ // Type of CPU usage counts.
-type X__rlim_t = uint64                    /* types.h:155:26 */ // Type for resource measurement.
-type X__rlim64_t = uint64                  /* types.h:156:28 */ // Type for resource measurement (LFS).
-type X__id_t = uint32                      /* types.h:157:24 */ // General type for IDs.
-type X__time_t = int64                     /* types.h:158:26 */ // Seconds since the Epoch.
-type X__useconds_t = uint32                /* types.h:159:30 */ // Count of microseconds.
-type X__suseconds_t = int64                /* types.h:160:31 */ // Signed count of microseconds.
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
 
-type X__daddr_t = int32 /* types.h:162:27 */ // The type of a disk address.
-type X__key_t = int32   /* types.h:163:25 */ // Type of an IPC key.
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
-type X__clockid_t = int32 /* types.h:166:29 */
+type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
-type X__timer_t = uintptr /* types.h:169:12 */
+type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
-type X__blksize_t = int64 /* types.h:172:29 */
+type X__blksize_t = int64 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
-type X__blkcnt_t = int64   /* types.h:177:28 */
-type X__blkcnt64_t = int64 /* types.h:178:30 */
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
 
 // Type to count file system blocks.
-type X__fsblkcnt_t = uint64   /* types.h:181:30 */
-type X__fsblkcnt64_t = uint64 /* types.h:182:32 */
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
 
 // Type to count file system nodes.
-type X__fsfilcnt_t = uint64   /* types.h:185:30 */
-type X__fsfilcnt64_t = uint64 /* types.h:186:32 */
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
-type X__fsword_t = int64 /* types.h:189:28 */
+type X__fsword_t = int64 /* types.h:191:28 */
 
-type X__ssize_t = int64 /* types.h:191:27 */ // Type of a byte count, or error.
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
-type X__syscall_slong_t = int64 /* types.h:194:33 */
+type X__syscall_slong_t = int64 /* types.h:196:33 */
 // Unsigned long type used in system calls.
-type X__syscall_ulong_t = uint64 /* types.h:196:33 */
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //    to one of the other defined types.
-type X__loff_t = X__off64_t /* types.h:200:19 */ // Type of file sizes and offsets (LFS).
-type X__caddr_t = uintptr   /* types.h:201:14 */
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
-type X__intptr_t = int64 /* types.h:204:25 */
+type X__intptr_t = int64 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
-type X__socklen_t = uint32 /* types.h:207:23 */
+type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //    even in the presence of asynchronous interrupts.
 //    It is not currently necessary for this to be machine-specific.
-type X__sig_atomic_t = int32 /* types.h:212:13 */
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
 
 type U_char = X__u_char     /* types.h:33:18 */
 type U_short = X__u_short   /* types.h:34:19 */
@@ -816,7 +888,7 @@ type Caddr_t = X__caddr_t /* types.h:115:19 */
 type Key_t = X__key_t /* types.h:121:17 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -831,7 +903,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -839,7 +911,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 type Clock_t = X__clock_t /* clock_t.h:7:19 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -854,7 +926,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -862,7 +934,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -877,7 +949,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -885,7 +957,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 type Time_t = X__time_t /* time_t.h:7:18 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -900,7 +972,7 @@ type Time_t = X__time_t /* time_t.h:7:18 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -915,11 +987,6 @@ type Timer_t = X__timer_t /* timer_t.h:7:19 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Old compatibility names for C types.
@@ -930,7 +997,7 @@ type Uint = uint32   /* types.h:150:22 */
 // These size-specific names are used by some of the inet code.
 
 // Define intN_t types.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -945,10 +1012,10 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -963,7 +1030,7 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -972,18 +1039,17 @@ type Int16_t = X__int16_t /* stdint-intn.h:25:19 */
 type Int32_t = X__int32_t /* stdint-intn.h:26:19 */
 type Int64_t = X__int64_t /* stdint-intn.h:27:19 */
 
-// For GCC 2.7 and later, we can use specific type-size attributes.
+// These were defined by ISO C without the first `_'.
+type U_int8_t = X__uint8_t   /* types.h:158:19 */
+type U_int16_t = X__uint16_t /* types.h:159:20 */
+type U_int32_t = X__uint32_t /* types.h:160:20 */
+type U_int64_t = X__uint64_t /* types.h:161:20 */
 
-type U_int8_t = uint32  /* types.h:177:1 */
-type U_int16_t = uint32 /* types.h:178:1 */
-type U_int32_t = uint32 /* types.h:179:1 */
-type U_int64_t = uint32 /* types.h:180:1 */
-
-type Register_t = int32 /* types.h:182:13 */
+type Register_t = int32 /* types.h:164:13 */
 
 // It also defines `fd_set' and the FD_* macros for `select'.
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -998,11 +1064,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1017,11 +1083,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Get definition of needed basic types.
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1036,12 +1102,12 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Get __FD_* definitions.
-// Copyright (C) 1997-2018 Free Software Foundation, Inc.
+// Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1056,7 +1122,7 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
@@ -1072,7 +1138,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 // Get definition of timer specification structures.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1087,7 +1153,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1101,7 +1167,7 @@ type Timeval = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1116,16 +1182,34 @@ type Timeval = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //    has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
-} /* struct_timespec.h:9:1 */
+} /* struct_timespec.h:10:1 */
 
 type Suseconds_t = X__suseconds_t /* select.h:43:23 */
 
@@ -1145,16 +1229,16 @@ type Fd_mask = X__fd_mask /* select.h:77:19 */
 
 // Define some inlines helping to catch common problems.
 
-type Blksize_t = X__blksize_t /* types.h:202:21 */
+type Blksize_t = X__blksize_t /* types.h:185:21 */
 
 // Types from the Large File Support interface.
-type Blkcnt_t = X__blkcnt64_t     /* types.h:222:22 */ // Type to count number of disk blocks.
-type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:226:24 */ // Type to count file system blocks.
-type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file system inodes.
+type Blkcnt_t = X__blkcnt64_t     /* types.h:205:22 */ // Type to count number of disk blocks.
+type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:209:24 */ // Type to count file system blocks.
+type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:213:24 */ // Type to count file system inodes.
 
 // Now add the thread types.
 // Declaration of common pthread types for all architectures.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1169,11 +1253,11 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1188,7 +1272,7 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
@@ -1203,35 +1287,95 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
-//    Also, the following macros must be define for internal pthread_mutex_t
-//    struct definitions (struct __pthread_mutex_s):
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
+//
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
+//
+//    Same idea but for the once locking primitive:
+//
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    __PTHREAD_COMPAT_PADDING_MID   - any additional members after 'kind'
-// 				    and before '__spin' (for 64 bits) or
-// 				    '__nusers' (for 32 bits).
-//    __PTHREAD_COMPAT_PADDING_END   - any additional members at the end of
-// 				    the internal structure.
-//    __PTHREAD_MUTEX_LOCK_ELISION   - 1 if the architecture supports lock
-// 				    elision or 0 otherwise.
-//    __PTHREAD_MUTEX_NUSERS_AFTER_KIND - control where to put __nusers.  The
-// 				       preferred value for new architectures
-// 				       is 0.
-//    __PTHREAD_MUTEX_USE_UNION      - control whether internal __spins and
-// 				    __list will be place inside a union for
-// 				    linuxthreads compatibility.
-// 				    The preferred value for new architectures
-// 				    is 0.
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-//    For a new port the preferred values for the required defines are:
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Both x86-64 and x32 use the 64-bit system call interface.
+
+// Common definition of pthread_mutex_t.
+
+type X__pthread_internal_list = struct {
+	F__prev uintptr
+	F__next uintptr
+} /* thread-shared-types.h:49:9 */
+
+// Type to count file system inodes.
+
+// Now add the thread types.
+// Declaration of common pthread types for all architectures.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
 //
-//    #define __PTHREAD_COMPAT_PADDING_MID
-//    #define __PTHREAD_COMPAT_PADDING_END
-//    #define __PTHREAD_MUTEX_LOCK_ELISION         0
-//    #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND    0
-//    #define __PTHREAD_MUTEX_USE_UNION            0
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    __PTHREAD_MUTEX_LOCK_ELISION can be set to 1 if the hardware plans to
-//    eventually support lock elision using transactional memory.
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
@@ -1241,11 +1385,8 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
-//
-//    And finally the internal pthread_rwlock_t (struct __pthread_rwlock_arch_t)
-//    must be defined.
-//
-// Copyright (C) 2002-2018 Free Software Foundation, Inc.
+
+// Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1260,42 +1401,51 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
 // Both x86-64 and x32 use the 64-bit system call interface.
 
-// Definitions for internal mutex struct.
-
-type X__pthread_rwlock_arch_t = struct {
-	F__readers       uint32
-	F__writers       uint32
-	F__wrphase_futex uint32
-	F__writers_futex uint32
-	F__pad3          uint32
-	F__pad4          uint32
-	F__cur_writer    int32
-	F__shared        int32
-	F__rwelision     int8
-	F__pad1          [7]uint8
-	F__pad2          uint64
-	F__flags         uint32
-	_                [4]byte
-} /* pthreadtypes-arch.h:65:1 */
-
 // Common definition of pthread_mutex_t.
 
-type X__pthread_internal_list = struct {
-	F__prev uintptr
-	F__next uintptr
-} /* thread-shared-types.h:82:9 */
+type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
 
-// Common definition of pthread_mutex_t.
+type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
 
-type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:86:3 */
+type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
 
-// Lock elision support.
+// Arch-specific mutex definitions.  A generic implementation is provided
+//    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
+//    can override it by defining:
+//
+//    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
+//       definition).  It should contains at least the internal members
+//       defined in the generic version.
+//
+//    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
+//       atomic operations.
+//
+//    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
+//       It should initialize the mutex internal flag.
+
+// x86 internal mutex struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
 
 type X__pthread_mutex_s = struct {
 	F__lock    int32
@@ -1306,7 +1456,53 @@ type X__pthread_mutex_s = struct {
 	F__spins   int16
 	F__elision int16
 	F__list    X__pthread_list_t
-} /* thread-shared-types.h:118:1 */
+} /* struct_mutex.h:22:1 */
+
+// Arch-sepecific read-write lock definitions.  A generic implementation is
+//    provided by struct_rwlock.h.  If required, an architecture can override it
+//    by defining:
+//
+//    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
+//       It should contain at least the internal members defined in the
+//       generic version.
+//
+//    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
+//       It should initialize the rwlock internal type.
+
+// x86 internal rwlock struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+type X__pthread_rwlock_arch_t = struct {
+	F__readers       uint32
+	F__writers       uint32
+	F__wrphase_futex uint32
+	F__writers_futex uint32
+	F__pad3          uint32
+	F__pad4          uint32
+	F__cur_writer    int32
+	F__shared        int32
+	F__rwelision     int8
+	F__pad1          [7]uint8
+	F__pad2          uint64
+	F__flags         uint32
+	F__ccgo_pad1     [4]byte
+} /* struct_rwlock.h:23:1 */
 
 // Common definition of pthread_cond_t.
 
@@ -1318,7 +1514,7 @@ type X__pthread_cond_s = struct {
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
-} /* thread-shared-types.h:171:1 */
+} /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //    exposed on purpose.
@@ -1327,15 +1523,15 @@ type Pthread_t = uint64 /* pthreadtypes.h:27:27 */
 // Data structures for mutex handling.  The structure of the attribute
 //    type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]int8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //    the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]int8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
@@ -1345,8 +1541,8 @@ type Pthread_key_t = uint32 /* pthreadtypes.h:49:22 */
 type Pthread_once_t = int32 /* pthreadtypes.h:53:30 */
 
 type Pthread_attr_t1 = struct {
-	_       [0]uint64
-	F__size [56]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [56]int8
 } /* pthreadtypes.h:56:1 */
 
 type Pthread_attr_t = Pthread_attr_t1 /* pthreadtypes.h:62:30 */
@@ -1360,8 +1556,8 @@ type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
-	_       [0]uint64
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [8]int8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
@@ -1370,16 +1566,16 @@ type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 // POSIX barriers data type.  The structure of the type is
 //    deliberately not exposed.
 type Pthread_barrier_t = struct {
-	_       [0]uint64
-	F__size [32]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [32]int8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]int8
 } /* pthreadtypes.h:118:3 */
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1394,9 +1590,9 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1411,10 +1607,10 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1429,12 +1625,12 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1449,7 +1645,7 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
@@ -1460,8 +1656,6 @@ type Timezone = struct {
 	Ftz_dsttime     int32
 } /* time.h:52:1 */
 
-type X__timezone_ptr_t = uintptr /* time.h:58:25 */
-
 // Type of the second argument to `getitimer' and
 //    the second and third arguments `setitimer'.
 type Itimerval = struct {
@@ -1473,14 +1667,14 @@ type Itimerval = struct {
 		Ftv_sec  X__time_t
 		Ftv_usec X__suseconds_t
 	}
-} /* time.h:104:1 */
+} /* time.h:105:1 */
 
-type X__itimer_which_t = int32 /* time.h:117:13 */
+type X__itimer_which_t = int32 /* time.h:118:13 */
 
 // Convenience macros for operations on timevals.
 //    NOTE: `timercmp' does not work for >= or <=.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1495,11 +1689,11 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	ISO C99 Standard: 7.23 Date and time	<time.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1514,9 +1708,9 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1989-2018 Free Software Foundation, Inc.
+// Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -1548,15 +1742,6 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
-// On 4.3bsd-net2, make sure ansi.h is included, so we have
-//    one less case to deal with in the following.
-// On FreeBSD 5, machine/ansi.h does not exist anymore...
-
-// In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
-//    defined if the corresponding type is *not* defined.
-//    FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
-//    NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_
-
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
@@ -1591,17 +1776,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // This defines CLOCKS_PER_SEC, which is the number of processor clock
 //    ticks per second, and possibly a number of other constants.
 // System-dependent timing definitions.  Linux version.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1616,12 +1796,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <time.h> instead.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1636,7 +1816,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1665,7 +1845,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //    may also need to be defined by other headers.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1680,30 +1860,30 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // ISO C `broken-down time' structure.
 type Tm = struct {
-	Ftm_sec    int32
-	Ftm_min    int32
-	Ftm_hour   int32
-	Ftm_mday   int32
-	Ftm_mon    int32
-	Ftm_year   int32
-	Ftm_wday   int32
-	Ftm_yday   int32
-	Ftm_isdst  int32
-	_          [4]byte
-	Ftm_gmtoff int64
-	Ftm_zone   uintptr
+	Ftm_sec      int32
+	Ftm_min      int32
+	Ftm_hour     int32
+	Ftm_mday     int32
+	Ftm_mon      int32
+	Ftm_year     int32
+	Ftm_wday     int32
+	Ftm_yday     int32
+	Ftm_isdst    int32
+	F__ccgo_pad1 [4]byte
+	Ftm_gmtoff   int64
+	Ftm_zone     uintptr
 } /* struct_tm.h:7:1 */
 
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1718,7 +1898,7 @@ type Tm = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1737,7 +1917,7 @@ type Itimerspec = struct {
 } /* struct_itimerspec.h:8:1 */
 
 // Definition of locale_t.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1752,10 +1932,10 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Definition of struct __locale_struct and __locale_t.
-//    Copyright (C) 1997-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 //
@@ -1771,7 +1951,7 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // POSIX.1-2008: the locale_t type, representing a locale context
 //    (implementation-namespace version).  This type should be treated
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm.go b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm.go
index ab19b2321..8a7b6515c 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -49,9 +49,12 @@ const (
 	UUID_VARIANT_SHIFT           = 5
 	X_ATFILE_SOURCE              = 1
 	X_BITS_BYTESWAP_H            = 1
+	X_BITS_ENDIANNESS_H          = 1
+	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_STDINT_INTN_H         = 1
+	X_BITS_TIME64_H              = 1
 	X_BITS_TIME_H                = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
@@ -80,6 +83,7 @@ const (
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_TIME_H                 = 1
 	X_SYS_TYPES_H                = 1
+	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_TIME_H                     = 1
 	X_T_SIZE                     = 0
@@ -90,7 +94,7 @@ const (
 )
 
 // Values for the first argument to `getitimer' and `setitimer'.
-const ( /* time.h:88:1: */
+const ( /* time.h:89:1: */
 	// Timers run in real time.
 	ITIMER_REAL = 0
 	// Timers run only when the process is executing.
@@ -141,7 +145,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // DAMAGE.
 // %End-Header%
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -156,11 +160,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX Standard: 2.6 Primitive System Data Types	<sys/types.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -175,7 +179,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
@@ -183,6 +187,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
@@ -303,6 +308,8 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
+// This is to enable the ISO C2X extension.
+
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
@@ -325,9 +332,22 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -342,7 +362,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
@@ -355,7 +375,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -370,7 +390,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We are almost always included from features.h.
 
@@ -485,7 +505,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-//    semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
@@ -506,7 +526,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
-// Copyright (C) 1999-2018 Free Software Foundation, Inc.
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -521,10 +545,10 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Properties of long double type.
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -539,7 +563,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This header is included by <sys/cdefs.h>.
 //
@@ -593,7 +617,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -608,11 +632,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -627,9 +651,9 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1999-2018 Free Software Foundation, Inc.
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -644,41 +668,78 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
 
 // Convenience types.
-type X__u_char = uint8   /* types.h:30:23 */
-type X__u_short = uint16 /* types.h:31:28 */
-type X__u_int = uint32   /* types.h:32:22 */
-type X__u_long = uint32  /* types.h:33:27 */
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint32  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
-type X__int8_t = int8     /* types.h:36:21 */
-type X__uint8_t = uint8   /* types.h:37:23 */
-type X__int16_t = int16   /* types.h:38:26 */
-type X__uint16_t = uint16 /* types.h:39:28 */
-type X__int32_t = int32   /* types.h:40:20 */
-type X__uint32_t = uint32 /* types.h:41:22 */
-type X__int64_t = int64   /* types.h:46:44 */
-type X__uint64_t = uint64 /* types.h:47:46 */
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:47:44 */
+type X__uint64_t = uint64 /* types.h:48:46 */
 
 // Smallest types with at least a given width.
-type X__int_least8_t = X__int8_t     /* types.h:51:18 */
-type X__uint_least8_t = X__uint8_t   /* types.h:52:19 */
-type X__int_least16_t = X__int16_t   /* types.h:53:19 */
-type X__uint_least16_t = X__uint16_t /* types.h:54:20 */
-type X__int_least32_t = X__int32_t   /* types.h:55:19 */
-type X__uint_least32_t = X__uint32_t /* types.h:56:20 */
-type X__int_least64_t = X__int64_t   /* types.h:57:19 */
-type X__uint_least64_t = X__uint64_t /* types.h:58:20 */
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
-type X__quad_t = int64    /* types.h:65:37 */
-type X__u_quad_t = uint64 /* types.h:66:46 */
+type X__quad_t = int64    /* types.h:66:37 */
+type X__u_quad_t = uint64 /* types.h:67:46 */
 
 // Largest integral types.
-type X__intmax_t = int64   /* types.h:74:37 */
-type X__uintmax_t = uint64 /* types.h:75:46 */
+type X__intmax_t = int64   /* types.h:75:37 */
+type X__uintmax_t = uint64 /* types.h:76:46 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
@@ -690,7 +751,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
-// 	QUAD		-- 64-bit type, always long long
+// 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
@@ -712,7 +773,7 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 // We want __extension__ before typedef's that use nonstandard base types
 //    such as `long long' in C89 mode.
 // bits/typesizes.h -- underlying types for *_t.  Generic version.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -727,83 +788,110 @@ type X__uintmax_t = uint64 /* types.h:75:46 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // See <bits/types.h> for the meaning of these macros.  This file exists so
 //    that <bits/types.h> need not vary across different GNU platforms.
 
 // Number of descriptors that can fit in an `fd_set'.
 
-type X__dev_t = X__u_quad_t                /* types.h:143:25 */ // Type of device numbers.
-type X__uid_t = uint32                     /* types.h:144:25 */ // Type of user identifications.
-type X__gid_t = uint32                     /* types.h:145:25 */ // Type of group identifications.
-type X__ino_t = uint32                     /* types.h:146:25 */ // Type of file serial numbers.
-type X__ino64_t = X__u_quad_t              /* types.h:147:27 */ // Type of file serial numbers (LFS).
-type X__mode_t = uint32                    /* types.h:148:26 */ // Type of file attribute bitmasks.
-type X__nlink_t = uint32                   /* types.h:149:27 */ // Type of file link counts.
-type X__off_t = int32                      /* types.h:150:25 */ // Type of file sizes and offsets.
-type X__off64_t = X__quad_t                /* types.h:151:27 */ // Type of file sizes and offsets (LFS).
-type X__pid_t = int32                      /* types.h:152:25 */ // Type of process identifications.
-type X__fsid_t = struct{ F__val [2]int32 } /* types.h:153:26 */ // Type of file system IDs.
-type X__clock_t = int32                    /* types.h:154:27 */ // Type of CPU usage counts.
-type X__rlim_t = uint32                    /* types.h:155:26 */ // Type for resource measurement.
-type X__rlim64_t = X__u_quad_t             /* types.h:156:28 */ // Type for resource measurement (LFS).
-type X__id_t = uint32                      /* types.h:157:24 */ // General type for IDs.
-type X__time_t = int32                     /* types.h:158:26 */ // Seconds since the Epoch.
-type X__useconds_t = uint32                /* types.h:159:30 */ // Count of microseconds.
-type X__suseconds_t = int32                /* types.h:160:31 */ // Signed count of microseconds.
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
 
-type X__daddr_t = int32 /* types.h:162:27 */ // The type of a disk address.
-type X__key_t = int32   /* types.h:163:25 */ // Type of an IPC key.
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// Define a 64-bit time type alongsize the 32-bit one.
+
+type X__dev_t = X__uint64_t                /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint32                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = X__uint64_t              /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int32                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = X__int64_t               /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int32                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint32                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = X__uint64_t             /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int32                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int32                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
-type X__clockid_t = int32 /* types.h:166:29 */
+type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
-type X__timer_t = uintptr /* types.h:169:12 */
+type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
-type X__blksize_t = int32 /* types.h:172:29 */
+type X__blksize_t = int32 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
-type X__blkcnt_t = int32       /* types.h:177:28 */
-type X__blkcnt64_t = X__quad_t /* types.h:178:30 */
+type X__blkcnt_t = int32        /* types.h:179:28 */
+type X__blkcnt64_t = X__int64_t /* types.h:180:30 */
 
 // Type to count file system blocks.
-type X__fsblkcnt_t = uint32        /* types.h:181:30 */
-type X__fsblkcnt64_t = X__u_quad_t /* types.h:182:32 */
+type X__fsblkcnt_t = uint32        /* types.h:183:30 */
+type X__fsblkcnt64_t = X__uint64_t /* types.h:184:32 */
 
 // Type to count file system nodes.
-type X__fsfilcnt_t = uint32        /* types.h:185:30 */
-type X__fsfilcnt64_t = X__u_quad_t /* types.h:186:32 */
+type X__fsfilcnt_t = uint32        /* types.h:187:30 */
+type X__fsfilcnt64_t = X__uint64_t /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
-type X__fsword_t = int32 /* types.h:189:28 */
+type X__fsword_t = int32 /* types.h:191:28 */
 
-type X__ssize_t = int32 /* types.h:191:27 */ // Type of a byte count, or error.
+type X__ssize_t = int32 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
-type X__syscall_slong_t = int32 /* types.h:194:33 */
+type X__syscall_slong_t = int32 /* types.h:196:33 */
 // Unsigned long type used in system calls.
-type X__syscall_ulong_t = uint32 /* types.h:196:33 */
+type X__syscall_ulong_t = uint32 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //    to one of the other defined types.
-type X__loff_t = X__off64_t /* types.h:200:19 */ // Type of file sizes and offsets (LFS).
-type X__caddr_t = uintptr   /* types.h:201:14 */
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
-type X__intptr_t = int32 /* types.h:204:25 */
+type X__intptr_t = int32 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
-type X__socklen_t = uint32 /* types.h:207:23 */
+type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //    even in the presence of asynchronous interrupts.
 //    It is not currently necessary for this to be machine-specific.
-type X__sig_atomic_t = int32 /* types.h:212:13 */
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
+type X__time64_t = X__int64_t /* types.h:222:28 */
 
 type U_char = X__u_char     /* types.h:33:18 */
 type U_short = X__u_short   /* types.h:34:19 */
@@ -840,7 +928,7 @@ type Caddr_t = X__caddr_t /* types.h:115:19 */
 type Key_t = X__key_t /* types.h:121:17 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -855,7 +943,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -863,7 +951,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 type Clock_t = X__clock_t /* clock_t.h:7:19 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -878,7 +966,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -886,7 +974,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -901,7 +989,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -909,7 +997,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 type Time_t = X__time_t /* time_t.h:7:18 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -924,7 +1012,7 @@ type Time_t = X__time_t /* time_t.h:7:18 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -939,11 +1027,6 @@ type Timer_t = X__timer_t /* timer_t.h:7:19 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Old compatibility names for C types.
@@ -954,7 +1037,7 @@ type Uint = uint32   /* types.h:150:22 */
 // These size-specific names are used by some of the inet code.
 
 // Define intN_t types.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -969,10 +1052,10 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -987,7 +1070,7 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -996,18 +1079,17 @@ type Int16_t = X__int16_t /* stdint-intn.h:25:19 */
 type Int32_t = X__int32_t /* stdint-intn.h:26:19 */
 type Int64_t = X__int64_t /* stdint-intn.h:27:19 */
 
-// For GCC 2.7 and later, we can use specific type-size attributes.
-
-type U_int8_t = uint32  /* types.h:177:1 */
-type U_int16_t = uint32 /* types.h:178:1 */
-type U_int32_t = uint32 /* types.h:179:1 */
-type U_int64_t = uint32 /* types.h:180:1 */
+// These were defined by ISO C without the first `_'.
+type U_int8_t = X__uint8_t   /* types.h:158:19 */
+type U_int16_t = X__uint16_t /* types.h:159:20 */
+type U_int32_t = X__uint32_t /* types.h:160:20 */
+type U_int64_t = X__uint64_t /* types.h:161:20 */
 
-type Register_t = int32 /* types.h:182:13 */
+type Register_t = int32 /* types.h:164:13 */
 
 // It also defines `fd_set' and the FD_* macros for `select'.
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1022,11 +1104,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1041,11 +1123,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Get definition of needed basic types.
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1060,12 +1142,12 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Get __FD_* definitions.
-// Copyright (C) 1997-2018 Free Software Foundation, Inc.
+// Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1080,7 +1162,7 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We don't use `memset' because this would require a prototype and
 //    the array isn't too big.
@@ -1095,7 +1177,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 // Get definition of timer specification structures.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1110,7 +1192,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1124,7 +1206,7 @@ type Timeval = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1139,16 +1221,34 @@ type Timeval = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //    has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
-} /* struct_timespec.h:9:1 */
+} /* struct_timespec.h:10:1 */
 
 type Suseconds_t = X__suseconds_t /* select.h:43:23 */
 
@@ -1168,16 +1268,16 @@ type Fd_mask = X__fd_mask /* select.h:77:19 */
 
 // Define some inlines helping to catch common problems.
 
-type Blksize_t = X__blksize_t /* types.h:202:21 */
+type Blksize_t = X__blksize_t /* types.h:185:21 */
 
 // Types from the Large File Support interface.
-type Blkcnt_t = X__blkcnt64_t     /* types.h:222:22 */ // Type to count number of disk blocks.
-type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:226:24 */ // Type to count file system blocks.
-type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file system inodes.
+type Blkcnt_t = X__blkcnt64_t     /* types.h:205:22 */ // Type to count number of disk blocks.
+type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:209:24 */ // Type to count file system blocks.
+type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:213:24 */ // Type to count file system inodes.
 
 // Now add the thread types.
 // Declaration of common pthread types for all architectures.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1192,11 +1292,11 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1211,7 +1311,7 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
@@ -1226,35 +1326,110 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
-//    Also, the following macros must be define for internal pthread_mutex_t
-//    struct definitions (struct __pthread_mutex_s):
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
+//
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
+//
+//    Same idea but for the once locking primitive:
+//
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Machine-specific pthread type layouts.  Generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Common definition of pthread_mutex_t.
+
+type X__pthread_internal_list = struct {
+	F__prev uintptr
+	F__next uintptr
+} /* thread-shared-types.h:49:9 */
+
+// Type to count file system inodes.
+
+// Now add the thread types.
+// Declaration of common pthread types for all architectures.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-//    __PTHREAD_COMPAT_PADDING_MID   - any additional members after 'kind'
-// 				    and before '__spin' (for 64 bits) or
-// 				    '__nusers' (for 32 bits).
-//    __PTHREAD_COMPAT_PADDING_END   - any additional members at the end of
-// 				    the internal structure.
-//    __PTHREAD_MUTEX_LOCK_ELISION   - 1 if the architecture supports lock
-// 				    elision or 0 otherwise.
-//    __PTHREAD_MUTEX_NUSERS_AFTER_KIND - control where to put __nusers.  The
-// 				       preferred value for new architectures
-// 				       is 0.
-//    __PTHREAD_MUTEX_USE_UNION      - control whether internal __spins and
-// 				    __list will be place inside a union for
-// 				    linuxthreads compatibility.
-// 				    The preferred value for new architectures
-// 				    is 0.
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
 //
-//    For a new port the preferred values for the required defines are:
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    #define __PTHREAD_COMPAT_PADDING_MID
-//    #define __PTHREAD_COMPAT_PADDING_END
-//    #define __PTHREAD_MUTEX_LOCK_ELISION         0
-//    #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND    0
-//    #define __PTHREAD_MUTEX_USE_UNION            0
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-//    __PTHREAD_MUTEX_LOCK_ELISION can be set to 1 if the hardware plans to
-//    eventually support lock elision using transactional memory.
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
@@ -1264,11 +1439,27 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Machine-specific pthread type layouts.  Generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    And finally the internal pthread_rwlock_t (struct __pthread_rwlock_arch_t)
-//    must be defined.
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-// Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+// Copyright (C) 1999-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1282,10 +1473,94 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    Lesser General Public License for more details.
 //
 //    You should have received a copy of the GNU Lesser General Public
-//    License along with the GNU C Library.  If not, see
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Common definition of pthread_mutex_t.
+
+type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
+
+type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
+
+type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
+
+// Arch-specific mutex definitions.  A generic implementation is provided
+//    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
+//    can override it by defining:
+//
+//    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
+//       definition).  It should contains at least the internal members
+//       defined in the generic version.
+//
+//    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
+//       atomic operations.
+//
+//    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
+//       It should initialize the mutex internal flag.
+
+// Default mutex implementation struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+// Generic struct for both POSIX and C11 mutexes.  New ports are expected
+//    to use the default layout, however architecture can redefine it to
+//    add arch-specific extension (such as lock-elision).  The struct have
+//    a size of 32 bytes on LP32 and 40 bytes on LP64 architectures.
+
+type X__pthread_mutex_s = struct {
+	F__lock   int32
+	F__count  uint32
+	F__owner  int32
+	F__kind   int32
+	F__nusers uint32
+	F__20     struct{ F__spins int32 }
+} /* struct_mutex.h:27:1 */
+
+// Arch-sepecific read-write lock definitions.  A generic implementation is
+//    provided by struct_rwlock.h.  If required, an architecture can override it
+//    by defining:
+//
+//    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
+//       It should contain at least the internal members defined in the
+//       generic version.
+//
+//    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
+//       It should initialize the rwlock internal type.
+
+// Default read-write lock implementation struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1302,7 +1577,10 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
-// Data structure for mutex handling.
+// Generic struct for both POSIX read-write lock.  New ports are expected
+//    to use the default layout, however archictetures can redefine it to add
+//    arch-specific extensions (such as lock-elision).  The struct have a size
+//    of 32 bytes on both LP32 and LP64 architectures.
 
 type X__pthread_rwlock_arch_t = struct {
 	F__readers       uint32
@@ -1316,27 +1594,7 @@ type X__pthread_rwlock_arch_t = struct {
 	F__pad1          uint8
 	F__pad2          uint8
 	F__cur_writer    int32
-} /* pthreadtypes-arch.h:43:1 */
-
-// Common definition of pthread_mutex_t.
-
-type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:88:9 */
-
-// Common definition of pthread_mutex_t.
-
-type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:91:3 */
-
-// Lock elision support.
-// Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.
-
-type X__pthread_mutex_s = struct {
-	F__lock   int32
-	F__count  uint32
-	F__owner  int32
-	F__kind   int32
-	F__nusers uint32
-	F__20     struct{ F__spins int32 }
-} /* thread-shared-types.h:118:1 */
+} /* struct_rwlock.h:29:1 */
 
 // Common definition of pthread_cond_t.
 
@@ -1348,7 +1606,7 @@ type X__pthread_cond_s = struct {
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
-} /* thread-shared-types.h:171:1 */
+} /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //    exposed on purpose.
@@ -1357,15 +1615,15 @@ type Pthread_t = uint32 /* pthreadtypes.h:27:27 */
 // Data structures for mutex handling.  The structure of the attribute
 //    type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //    the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
@@ -1375,8 +1633,8 @@ type Pthread_key_t = uint32 /* pthreadtypes.h:49:22 */
 type Pthread_once_t = int32 /* pthreadtypes.h:53:30 */
 
 type Pthread_attr_t1 = struct {
-	_       [0]uint32
-	F__size [36]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [36]uint8
 } /* pthreadtypes.h:56:1 */
 
 type Pthread_attr_t = Pthread_attr_t1 /* pthreadtypes.h:62:30 */
@@ -1390,8 +1648,8 @@ type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
-	_       [0]uint32
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [8]uint8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
@@ -1400,16 +1658,16 @@ type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 // POSIX barriers data type.  The structure of the type is
 //    deliberately not exposed.
 type Pthread_barrier_t = struct {
-	_       [0]uint32
-	F__size [20]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [20]uint8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:118:3 */
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1424,9 +1682,9 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1441,10 +1699,10 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1459,12 +1717,12 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1479,7 +1737,7 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
@@ -1490,8 +1748,6 @@ type Timezone = struct {
 	Ftz_dsttime     int32
 } /* time.h:52:1 */
 
-type X__timezone_ptr_t = uintptr /* time.h:58:25 */
-
 // Type of the second argument to `getitimer' and
 //    the second and third arguments `setitimer'.
 type Itimerval = struct {
@@ -1503,14 +1759,14 @@ type Itimerval = struct {
 		Ftv_sec  X__time_t
 		Ftv_usec X__suseconds_t
 	}
-} /* time.h:104:1 */
+} /* time.h:105:1 */
 
-type X__itimer_which_t = int32 /* time.h:117:13 */
+type X__itimer_which_t = int32 /* time.h:118:13 */
 
 // Convenience macros for operations on timevals.
 //    NOTE: `timercmp' does not work for >= or <=.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1525,11 +1781,11 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	ISO C99 Standard: 7.23 Date and time	<time.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1544,9 +1800,9 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1989-2018 Free Software Foundation, Inc.
+// Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -1578,15 +1834,6 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
-// On 4.3bsd-net2, make sure ansi.h is included, so we have
-//    one less case to deal with in the following.
-// On FreeBSD 5, machine/ansi.h does not exist anymore...
-
-// In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
-//    defined if the corresponding type is *not* defined.
-//    FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
-//    NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_
-
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
@@ -1621,17 +1868,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // This defines CLOCKS_PER_SEC, which is the number of processor clock
 //    ticks per second, and possibly a number of other constants.
 // System-dependent timing definitions.  Linux version.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1646,12 +1888,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <time.h> instead.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1666,7 +1908,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1695,7 +1937,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //    may also need to be defined by other headers.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1710,7 +1952,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1732,7 +1974,7 @@ type Tm = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1747,7 +1989,7 @@ type Tm = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1766,7 +2008,7 @@ type Itimerspec = struct {
 } /* struct_itimerspec.h:8:1 */
 
 // Definition of locale_t.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1781,10 +2023,10 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Definition of struct __locale_struct and __locale_t.
-//    Copyright (C) 1997-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 //
@@ -1800,7 +2042,7 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // POSIX.1-2008: the locale_t type, representing a locale context
 //    (implementation-namespace version).  This type should be treated
@@ -1821,4 +2063,4 @@ type Locale_t = X__locale_t /* locale_t.h:24:20 */
 
 type Uuid_t = [16]uint8 /* uuid.h:44:23 */
 
-var _ int8 /* gen.c:2:13: */
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm64.go b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm64.go
index 0f2bb48d1..e3d618b65 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm64.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_arm64.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm64.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_arm64.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -49,9 +49,12 @@ const (
 	UUID_VARIANT_SHIFT           = 5
 	X_ATFILE_SOURCE              = 1
 	X_BITS_BYTESWAP_H            = 1
+	X_BITS_ENDIANNESS_H          = 1
+	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_STDINT_INTN_H         = 1
+	X_BITS_TIME64_H              = 1
 	X_BITS_TIME_H                = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
@@ -68,6 +71,7 @@ const (
 	X_LP64                       = 1
 	X_POSIX_C_SOURCE             = 200809
 	X_POSIX_SOURCE               = 1
+	X_RWLOCK_INTERNAL_H          = 0
 	X_SIZET_                     = 0
 	X_SIZE_T                     = 0
 	X_SIZE_T_                    = 0
@@ -81,6 +85,7 @@ const (
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_TIME_H                 = 1
 	X_SYS_TYPES_H                = 1
+	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_TIME_H                     = 1
 	X_T_SIZE                     = 0
@@ -91,7 +96,7 @@ const (
 )
 
 // Values for the first argument to `getitimer' and `setitimer'.
-const ( /* time.h:88:1: */
+const ( /* time.h:89:1: */
 	// Timers run in real time.
 	ITIMER_REAL = 0
 	// Timers run only when the process is executing.
@@ -151,7 +156,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // DAMAGE.
 // %End-Header%
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -166,11 +171,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX Standard: 2.6 Primitive System Data Types	<sys/types.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -185,7 +190,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
@@ -193,6 +198,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
@@ -313,6 +319,8 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
+// This is to enable the ISO C2X extension.
+
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
@@ -335,9 +343,22 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -352,7 +373,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
@@ -365,7 +386,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -380,7 +401,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We are almost always included from features.h.
 
@@ -495,7 +516,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-//    semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
@@ -516,9 +537,13 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
 // Determine the wordsize from the preprocessor defines.
 //
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -533,10 +558,10 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Properties of long double type.  ldbl-128 version.
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -551,7 +576,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // long double is distinct from double, so there is nothing to
 //    define here.
@@ -585,7 +610,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 
 // Determine the wordsize from the preprocessor defines.
 //
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -600,7 +625,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This file is automatically generated.
 //    It defines a symbol `__stub_FUNCTION' for each function
@@ -608,7 +633,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -623,11 +648,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -642,11 +667,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 //
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -661,41 +686,80 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
+
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+//
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Size in bits of the 'time_t' type of the default ABI.
 
 // Convenience types.
-type X__u_char = uint8   /* types.h:30:23 */
-type X__u_short = uint16 /* types.h:31:28 */
-type X__u_int = uint32   /* types.h:32:22 */
-type X__u_long = uint64  /* types.h:33:27 */
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
-type X__int8_t = int8     /* types.h:36:21 */
-type X__uint8_t = uint8   /* types.h:37:23 */
-type X__int16_t = int16   /* types.h:38:26 */
-type X__uint16_t = uint16 /* types.h:39:28 */
-type X__int32_t = int32   /* types.h:40:20 */
-type X__uint32_t = uint32 /* types.h:41:22 */
-type X__int64_t = int64   /* types.h:43:25 */
-type X__uint64_t = uint64 /* types.h:44:27 */
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
 
 // Smallest types with at least a given width.
-type X__int_least8_t = X__int8_t     /* types.h:51:18 */
-type X__uint_least8_t = X__uint8_t   /* types.h:52:19 */
-type X__int_least16_t = X__int16_t   /* types.h:53:19 */
-type X__uint_least16_t = X__uint16_t /* types.h:54:20 */
-type X__int_least32_t = X__int32_t   /* types.h:55:19 */
-type X__uint_least32_t = X__uint32_t /* types.h:56:20 */
-type X__int_least64_t = X__int64_t   /* types.h:57:19 */
-type X__uint_least64_t = X__uint64_t /* types.h:58:20 */
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
-type X__quad_t = int64    /* types.h:62:18 */
-type X__u_quad_t = uint64 /* types.h:63:27 */
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
 
 // Largest integral types.
-type X__intmax_t = int64   /* types.h:71:18 */
-type X__uintmax_t = uint64 /* types.h:72:27 */
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
@@ -707,7 +771,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
-// 	QUAD		-- 64-bit type, always long long
+// 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
@@ -728,7 +792,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 
 // No need to mark the typedef with __extension__.
 // bits/typesizes.h -- underlying types for *_t.  For the generic Linux ABI.
-//    Copyright (C) 2011-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2011-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
 //
@@ -744,7 +808,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library.  If not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // See <bits/types.h> for the meaning of these macros.  This file exists so
 //    that <bits/types.h> need not vary across different GNU platforms.
@@ -757,78 +821,105 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 
 // And for __rlim_t and __rlim64_t.
 
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
 // Number of descriptors that can fit in an `fd_set'.
 
-type X__dev_t = uint64                     /* types.h:143:25 */ // Type of device numbers.
-type X__uid_t = uint32                     /* types.h:144:25 */ // Type of user identifications.
-type X__gid_t = uint32                     /* types.h:145:25 */ // Type of group identifications.
-type X__ino_t = uint64                     /* types.h:146:25 */ // Type of file serial numbers.
-type X__ino64_t = uint64                   /* types.h:147:27 */ // Type of file serial numbers (LFS).
-type X__mode_t = uint32                    /* types.h:148:26 */ // Type of file attribute bitmasks.
-type X__nlink_t = uint32                   /* types.h:149:27 */ // Type of file link counts.
-type X__off_t = int64                      /* types.h:150:25 */ // Type of file sizes and offsets.
-type X__off64_t = int64                    /* types.h:151:27 */ // Type of file sizes and offsets (LFS).
-type X__pid_t = int32                      /* types.h:152:25 */ // Type of process identifications.
-type X__fsid_t = struct{ F__val [2]int32 } /* types.h:153:26 */ // Type of file system IDs.
-type X__clock_t = int64                    /* types.h:154:27 */ // Type of CPU usage counts.
-type X__rlim_t = uint64                    /* types.h:155:26 */ // Type for resource measurement.
-type X__rlim64_t = uint64                  /* types.h:156:28 */ // Type for resource measurement (LFS).
-type X__id_t = uint32                      /* types.h:157:24 */ // General type for IDs.
-type X__time_t = int64                     /* types.h:158:26 */ // Seconds since the Epoch.
-type X__useconds_t = uint32                /* types.h:159:30 */ // Count of microseconds.
-type X__suseconds_t = int64                /* types.h:160:31 */ // Signed count of microseconds.
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
+
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint32                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
 
-type X__daddr_t = int32 /* types.h:162:27 */ // The type of a disk address.
-type X__key_t = int32   /* types.h:163:25 */ // Type of an IPC key.
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
-type X__clockid_t = int32 /* types.h:166:29 */
+type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
-type X__timer_t = uintptr /* types.h:169:12 */
+type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
-type X__blksize_t = int32 /* types.h:172:29 */
+type X__blksize_t = int32 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
-type X__blkcnt_t = int64   /* types.h:177:28 */
-type X__blkcnt64_t = int64 /* types.h:178:30 */
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
 
 // Type to count file system blocks.
-type X__fsblkcnt_t = uint64   /* types.h:181:30 */
-type X__fsblkcnt64_t = uint64 /* types.h:182:32 */
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
 
 // Type to count file system nodes.
-type X__fsfilcnt_t = uint64   /* types.h:185:30 */
-type X__fsfilcnt64_t = uint64 /* types.h:186:32 */
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
-type X__fsword_t = int64 /* types.h:189:28 */
+type X__fsword_t = int64 /* types.h:191:28 */
 
-type X__ssize_t = int64 /* types.h:191:27 */ // Type of a byte count, or error.
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
-type X__syscall_slong_t = int64 /* types.h:194:33 */
+type X__syscall_slong_t = int64 /* types.h:196:33 */
 // Unsigned long type used in system calls.
-type X__syscall_ulong_t = uint64 /* types.h:196:33 */
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //    to one of the other defined types.
-type X__loff_t = X__off64_t /* types.h:200:19 */ // Type of file sizes and offsets (LFS).
-type X__caddr_t = uintptr   /* types.h:201:14 */
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
-type X__intptr_t = int64 /* types.h:204:25 */
+type X__intptr_t = int64 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
-type X__socklen_t = uint32 /* types.h:207:23 */
+type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //    even in the presence of asynchronous interrupts.
 //    It is not currently necessary for this to be machine-specific.
-type X__sig_atomic_t = int32 /* types.h:212:13 */
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
 
 type U_char = X__u_char     /* types.h:33:18 */
 type U_short = X__u_short   /* types.h:34:19 */
@@ -865,7 +956,7 @@ type Caddr_t = X__caddr_t /* types.h:115:19 */
 type Key_t = X__key_t /* types.h:121:17 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -880,7 +971,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -888,7 +979,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 type Clock_t = X__clock_t /* clock_t.h:7:19 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -903,7 +994,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -911,7 +1002,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -926,7 +1017,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -934,7 +1025,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 type Time_t = X__time_t /* time_t.h:7:18 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -949,7 +1040,7 @@ type Time_t = X__time_t /* time_t.h:7:18 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -964,11 +1055,6 @@ type Timer_t = X__timer_t /* timer_t.h:7:19 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Old compatibility names for C types.
@@ -979,7 +1065,7 @@ type Uint = uint32   /* types.h:150:22 */
 // These size-specific names are used by some of the inet code.
 
 // Define intN_t types.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -994,10 +1080,10 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1012,7 +1098,7 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1021,18 +1107,17 @@ type Int16_t = X__int16_t /* stdint-intn.h:25:19 */
 type Int32_t = X__int32_t /* stdint-intn.h:26:19 */
 type Int64_t = X__int64_t /* stdint-intn.h:27:19 */
 
-// For GCC 2.7 and later, we can use specific type-size attributes.
-
-type U_int8_t = uint32  /* types.h:177:1 */
-type U_int16_t = uint32 /* types.h:178:1 */
-type U_int32_t = uint32 /* types.h:179:1 */
-type U_int64_t = uint32 /* types.h:180:1 */
+// These were defined by ISO C without the first `_'.
+type U_int8_t = X__uint8_t   /* types.h:158:19 */
+type U_int16_t = X__uint16_t /* types.h:159:20 */
+type U_int32_t = X__uint32_t /* types.h:160:20 */
+type U_int64_t = X__uint64_t /* types.h:161:20 */
 
-type Register_t = int32 /* types.h:182:13 */
+type Register_t = int32 /* types.h:164:13 */
 
 // It also defines `fd_set' and the FD_* macros for `select'.
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1047,11 +1132,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1066,11 +1151,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Get definition of needed basic types.
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1085,12 +1170,12 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Get __FD_* definitions.
-// Copyright (C) 1997-2018 Free Software Foundation, Inc.
+// Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1105,7 +1190,7 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We don't use `memset' because this would require a prototype and
 //    the array isn't too big.
@@ -1120,7 +1205,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 // Get definition of timer specification structures.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1135,7 +1220,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1149,7 +1234,7 @@ type Timeval = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1164,16 +1249,34 @@ type Timeval = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //    has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
-} /* struct_timespec.h:9:1 */
+} /* struct_timespec.h:10:1 */
 
 type Suseconds_t = X__suseconds_t /* select.h:43:23 */
 
@@ -1193,16 +1296,16 @@ type Fd_mask = X__fd_mask /* select.h:77:19 */
 
 // Define some inlines helping to catch common problems.
 
-type Blksize_t = X__blksize_t /* types.h:202:21 */
+type Blksize_t = X__blksize_t /* types.h:185:21 */
 
 // Types from the Large File Support interface.
-type Blkcnt_t = X__blkcnt64_t     /* types.h:222:22 */ // Type to count number of disk blocks.
-type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:226:24 */ // Type to count file system blocks.
-type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file system inodes.
+type Blkcnt_t = X__blkcnt64_t     /* types.h:205:22 */ // Type to count number of disk blocks.
+type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:209:24 */ // Type to count file system blocks.
+type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:213:24 */ // Type to count file system inodes.
 
 // Now add the thread types.
 // Declaration of common pthread types for all architectures.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1217,11 +1320,11 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1236,7 +1339,7 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
@@ -1251,35 +1354,110 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
-//    Also, the following macros must be define for internal pthread_mutex_t
-//    struct definitions (struct __pthread_mutex_s):
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
 //
-//    __PTHREAD_COMPAT_PADDING_MID   - any additional members after 'kind'
-// 				    and before '__spin' (for 64 bits) or
-// 				    '__nusers' (for 32 bits).
-//    __PTHREAD_COMPAT_PADDING_END   - any additional members at the end of
-// 				    the internal structure.
-//    __PTHREAD_MUTEX_LOCK_ELISION   - 1 if the architecture supports lock
-// 				    elision or 0 otherwise.
-//    __PTHREAD_MUTEX_NUSERS_AFTER_KIND - control where to put __nusers.  The
-// 				       preferred value for new architectures
-// 				       is 0.
-//    __PTHREAD_MUTEX_USE_UNION      - control whether internal __spins and
-// 				    __list will be place inside a union for
-// 				    linuxthreads compatibility.
-// 				    The preferred value for new architectures
-// 				    is 0.
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
 //
-//    For a new port the preferred values for the required defines are:
+//    Same idea but for the once locking primitive:
 //
-//    #define __PTHREAD_COMPAT_PADDING_MID
-//    #define __PTHREAD_COMPAT_PADDING_END
-//    #define __PTHREAD_MUTEX_LOCK_ELISION         0
-//    #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND    0
-//    #define __PTHREAD_MUTEX_USE_UNION            0
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //
-//    __PTHREAD_MUTEX_LOCK_ELISION can be set to 1 if the hardware plans to
-//    eventually support lock elision using transactional memory.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+// Common definition of pthread_mutex_t.
+
+type X__pthread_internal_list = struct {
+	F__prev uintptr
+	F__next uintptr
+} /* thread-shared-types.h:49:9 */
+
+// Type to count file system inodes.
+
+// Now add the thread types.
+// Declaration of common pthread types for all architectures.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
@@ -1289,12 +1467,27 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Copyright (C) 2002-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
 //
-//    And finally the internal pthread_rwlock_t (struct __pthread_rwlock_arch_t)
-//    must be defined.
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-// Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1311,7 +1504,30 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Common definition of pthread_mutex_t.
+
+type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
+
+type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
+
+type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
+
+// Arch-specific mutex definitions.  A generic implementation is provided
+//    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
+//    can override it by defining:
+//
+//    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
+//       definition).  It should contains at least the internal members
+//       defined in the generic version.
+//
+//    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
+//       atomic operations.
+//
+//    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
+//       It should initialize the mutex internal flag.
+
+// Default mutex implementation struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1328,7 +1544,50 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    License along with the GNU C Library; if not, see
 //    <http://www.gnu.org/licenses/>.
 
-// Definitions for internal mutex struct.
+// Generic struct for both POSIX and C11 mutexes.  New ports are expected
+//    to use the default layout, however architecture can redefine it to
+//    add arch-specific extension (such as lock-elision).  The struct have
+//    a size of 32 bytes on LP32 and 40 bytes on LP64 architectures.
+
+type X__pthread_mutex_s = struct {
+	F__lock   int32
+	F__count  uint32
+	F__owner  int32
+	F__nusers uint32
+	F__kind   int32
+	F__spins  int32
+	F__list   X__pthread_list_t
+} /* struct_mutex.h:27:1 */
+
+// Arch-sepecific read-write lock definitions.  A generic implementation is
+//    provided by struct_rwlock.h.  If required, an architecture can override it
+//    by defining:
+//
+//    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
+//       It should contain at least the internal members defined in the
+//       generic version.
+//
+//    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
+//       It should initialize the rwlock internal type.
+
+// AArch64 internal rwlock struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
 
 type X__pthread_rwlock_arch_t = struct {
 	F__readers       uint32
@@ -1342,32 +1601,8 @@ type X__pthread_rwlock_arch_t = struct {
 	F__pad1          uint64
 	F__pad2          uint64
 	F__flags         uint32
-	_                [4]byte
-} /* pthreadtypes-arch.h:54:1 */
-
-// Common definition of pthread_mutex_t.
-
-type X__pthread_internal_list = struct {
-	F__prev uintptr
-	F__next uintptr
-} /* thread-shared-types.h:82:9 */
-
-// Common definition of pthread_mutex_t.
-
-type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:86:3 */
-
-// Lock elision support.
-// Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.
-
-type X__pthread_mutex_s = struct {
-	F__lock   int32
-	F__count  uint32
-	F__owner  int32
-	F__nusers uint32
-	F__kind   int32
-	F__spins  int32
-	F__list   X__pthread_list_t
-} /* thread-shared-types.h:118:1 */
+	F__ccgo_pad1     [4]byte
+} /* struct_rwlock.h:23:1 */
 
 // Common definition of pthread_cond_t.
 
@@ -1379,7 +1614,7 @@ type X__pthread_cond_s = struct {
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
-} /* thread-shared-types.h:171:1 */
+} /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //    exposed on purpose.
@@ -1388,15 +1623,15 @@ type Pthread_t = uint64 /* pthreadtypes.h:27:27 */
 // Data structures for mutex handling.  The structure of the attribute
 //    type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
-	_       [0]uint32
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [8]uint8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //    the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
-	_       [0]uint32
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [8]uint8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
@@ -1406,15 +1641,15 @@ type Pthread_key_t = uint32 /* pthreadtypes.h:49:22 */
 type Pthread_once_t = int32 /* pthreadtypes.h:53:30 */
 
 type Pthread_attr_t1 = struct {
-	_       [0]uint64
-	F__size [64]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [64]uint8
 } /* pthreadtypes.h:56:1 */
 
 type Pthread_attr_t = Pthread_attr_t1 /* pthreadtypes.h:62:30 */
 
 type Pthread_mutex_t = struct {
-	F__data X__pthread_mutex_s
-	_       [8]byte
+	F__data      X__pthread_mutex_s
+	F__ccgo_pad1 [8]byte
 } /* pthreadtypes.h:72:3 */
 
 type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3 */
@@ -1424,8 +1659,8 @@ type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
-	_       [0]uint64
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [8]uint8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
@@ -1434,16 +1669,16 @@ type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 // POSIX barriers data type.  The structure of the type is
 //    deliberately not exposed.
 type Pthread_barrier_t = struct {
-	_       [0]uint64
-	F__size [32]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [32]uint8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
-	_       [0]uint32
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [8]uint8
 } /* pthreadtypes.h:118:3 */
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1458,9 +1693,9 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1475,10 +1710,10 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1493,12 +1728,12 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1513,7 +1748,7 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
@@ -1524,8 +1759,6 @@ type Timezone = struct {
 	Ftz_dsttime     int32
 } /* time.h:52:1 */
 
-type X__timezone_ptr_t = uintptr /* time.h:58:25 */
-
 // Type of the second argument to `getitimer' and
 //    the second and third arguments `setitimer'.
 type Itimerval = struct {
@@ -1537,14 +1770,14 @@ type Itimerval = struct {
 		Ftv_sec  X__time_t
 		Ftv_usec X__suseconds_t
 	}
-} /* time.h:104:1 */
+} /* time.h:105:1 */
 
-type X__itimer_which_t = int32 /* time.h:117:13 */
+type X__itimer_which_t = int32 /* time.h:118:13 */
 
 // Convenience macros for operations on timevals.
 //    NOTE: `timercmp' does not work for >= or <=.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1559,11 +1792,11 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	ISO C99 Standard: 7.23 Date and time	<time.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1578,9 +1811,9 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1989-2018 Free Software Foundation, Inc.
+// Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -1612,15 +1845,6 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
-// On 4.3bsd-net2, make sure ansi.h is included, so we have
-//    one less case to deal with in the following.
-// On FreeBSD 5, machine/ansi.h does not exist anymore...
-
-// In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
-//    defined if the corresponding type is *not* defined.
-//    FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
-//    NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_
-
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
@@ -1655,17 +1879,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // This defines CLOCKS_PER_SEC, which is the number of processor clock
 //    ticks per second, and possibly a number of other constants.
 // System-dependent timing definitions.  Linux version.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1680,12 +1899,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <time.h> instead.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1700,7 +1919,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1729,7 +1948,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //    may also need to be defined by other headers.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1744,30 +1963,30 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // ISO C `broken-down time' structure.
 type Tm = struct {
-	Ftm_sec    int32
-	Ftm_min    int32
-	Ftm_hour   int32
-	Ftm_mday   int32
-	Ftm_mon    int32
-	Ftm_year   int32
-	Ftm_wday   int32
-	Ftm_yday   int32
-	Ftm_isdst  int32
-	_          [4]byte
-	Ftm_gmtoff int64
-	Ftm_zone   uintptr
+	Ftm_sec      int32
+	Ftm_min      int32
+	Ftm_hour     int32
+	Ftm_mday     int32
+	Ftm_mon      int32
+	Ftm_year     int32
+	Ftm_wday     int32
+	Ftm_yday     int32
+	Ftm_isdst    int32
+	F__ccgo_pad1 [4]byte
+	Ftm_gmtoff   int64
+	Ftm_zone     uintptr
 } /* struct_tm.h:7:1 */
 
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1782,7 +2001,7 @@ type Tm = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1801,7 +2020,7 @@ type Itimerspec = struct {
 } /* struct_itimerspec.h:8:1 */
 
 // Definition of locale_t.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1816,10 +2035,10 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Definition of struct __locale_struct and __locale_t.
-//    Copyright (C) 1997-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 //
@@ -1835,7 +2054,7 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // POSIX.1-2008: the locale_t type, representing a locale context
 //    (implementation-namespace version).  This type should be treated
@@ -1856,4 +2075,4 @@ type Locale_t = X__locale_t /* locale_t.h:24:20 */
 
 type Uuid_t = [16]uint8 /* uuid.h:44:23 */
 
-var _ int8 /* gen.c:2:13: */
+var _ uint8 /* gen.c:2:13: */
diff --git a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_s390x.go b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_s390x.go
index 087ed6ddf..0661806f7 100644
--- a/vendor/modernc.org/libc/uuid/uuid/uuid_linux_s390x.go
+++ b/vendor/modernc.org/libc/uuid/uuid/uuid_linux_s390x.go
@@ -1,4 +1,4 @@
-// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_s390x.go -pkgname uuid', DO NOT EDIT.
+// Code generated by 'ccgo uuid/uuid/gen.c -crt-import-path "" -export-defines "" -export-enums "" -export-externs X -export-fields F -export-structs "" -export-typedefs "" -header -hide _OSSwapInt16,_OSSwapInt32,_OSSwapInt64 -o uuid/uuid/uuid_linux_s390x.go -pkgname uuid', DO NOT EDIT.
 
 package uuid
 
@@ -49,9 +49,12 @@ const (
 	UUID_VARIANT_SHIFT           = 5
 	X_ATFILE_SOURCE              = 1
 	X_BITS_BYTESWAP_H            = 1
+	X_BITS_ENDIANNESS_H          = 1
+	X_BITS_ENDIAN_H              = 1
 	X_BITS_PTHREADTYPES_ARCH_H   = 1
 	X_BITS_PTHREADTYPES_COMMON_H = 1
 	X_BITS_STDINT_INTN_H         = 1
+	X_BITS_TIME64_H              = 1
 	X_BITS_TIME_H                = 1
 	X_BITS_TYPESIZES_H           = 1
 	X_BITS_TYPES_H               = 1
@@ -68,6 +71,7 @@ const (
 	X_LP64                       = 1
 	X_POSIX_C_SOURCE             = 200809
 	X_POSIX_SOURCE               = 1
+	X_RWLOCK_INTERNAL_H          = 0
 	X_SIZET_                     = 0
 	X_SIZE_T                     = 0
 	X_SIZE_T_                    = 0
@@ -81,6 +85,7 @@ const (
 	X_SYS_SIZE_T_H               = 0
 	X_SYS_TIME_H                 = 1
 	X_SYS_TYPES_H                = 1
+	X_THREAD_MUTEX_INTERNAL_H    = 1
 	X_THREAD_SHARED_TYPES_H      = 1
 	X_TIME_H                     = 1
 	X_T_SIZE                     = 0
@@ -91,7 +96,7 @@ const (
 )
 
 // Values for the first argument to `getitimer' and `setitimer'.
-const ( /* time.h:88:1: */
+const ( /* time.h:89:1: */
 	// Timers run in real time.
 	ITIMER_REAL = 0
 	// Timers run only when the process is executing.
@@ -151,7 +156,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // DAMAGE.
 // %End-Header%
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -166,11 +171,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX Standard: 2.6 Primitive System Data Types	<sys/types.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -185,7 +190,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // These are defined by the user (or the compiler)
 //    to specify the desired environment:
@@ -193,6 +198,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    __STRICT_ANSI__	ISO Standard C.
 //    _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
 //    _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
+//    _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
 //    __STDC_WANT_LIB_EXT2__
 // 			Extensions to ISO C99 from TR 27431-2:2010.
 //    __STDC_WANT_IEC_60559_BFP_EXT__
@@ -313,6 +319,8 @@ type X__float128 = float64        /* <builtin>:47:21 */
 // If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
 //    define _DEFAULT_SOURCE.
 
+// This is to enable the ISO C2X extension.
+
 // This is to enable the ISO C11 extension.
 
 // This is to enable the ISO C99 extension.
@@ -335,9 +343,22 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    compatibility with various implementations of <cstdio>, this test
 //    must consider only the value of __cplusplus when compiling C++.
 
+// GNU formerly extended the scanf functions with modified format
+//    specifiers %as, %aS, and %a[...] that allocate a buffer for the
+//    input using malloc.  This extension conflicts with ISO C99, which
+//    defines %a as a standalone format specifier that reads a floating-
+//    point number; moreover, POSIX.1-2008 provides the same feature
+//    using the modifier letter 'm' instead (%ms, %mS, %m[...]).
+//
+//    We now follow C99 unless GNU extensions are active and the compiler
+//    is specifically in C89 or C++98 mode (strict or not).  For
+//    instance, with GCC, -std=gnu11 will have C99-compliant scanf with
+//    or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
+//    old extension.
+
 // Get definitions of __STDC_* predefined macros, if the compiler has
 //    not preincluded this header automatically.
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -352,7 +373,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // This macro indicates that the installed library is the GNU C Library.
 //    For historic reasons the value now is 6 and this will stay from now
@@ -365,7 +386,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    these macros to test for features in specific releases.
 
 // This is here only because every header file already includes this one.
-// Copyright (C) 1992-2018 Free Software Foundation, Inc.
+// Copyright (C) 1992-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -380,7 +401,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We are almost always included from features.h.
 
@@ -495,7 +516,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    semantics.
 //
 //    clang++ identifies itself as gcc-4.2, but has support for GNU inlining
-//    semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+//    semantics, that can be checked for by using the __GNUC_STDC_INLINE_ and
 //    __GNUC_GNU_INLINE__ macro definitions.
 
 // GCC 4.3 and above allow passing all anonymous arguments of an
@@ -516,10 +537,14 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    argument to strncpy and strncat, as the char array is not necessarily
 //    a NUL-terminated string.
 
+// Undefine (also defined in libc-symbols.h).
+// Copies attributes from the declaration or type referenced by
+//    the argument.
+
 // Determine the wordsize from the preprocessor defines.
 
 // Properties of long double type.  ldbl-opt version.
-//    Copyright (C) 2016-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2016-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -534,7 +559,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // __glibc_macro_warning (MESSAGE) issues warning MESSAGE.  This is
 //    intended for use in preprocessor macros.
@@ -571,7 +596,7 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //    every time called, usually setting errno to ENOSYS.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -586,11 +611,11 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -605,43 +630,65 @@ type X__float128 = float64        /* <builtin>:47:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Determine the wordsize from the preprocessor defines.
 
+// Bit size of the time_t type at glibc build time, general case.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Size in bits of the 'time_t' type of the default ABI.
+
 // Convenience types.
-type X__u_char = uint8   /* types.h:30:23 */
-type X__u_short = uint16 /* types.h:31:28 */
-type X__u_int = uint32   /* types.h:32:22 */
-type X__u_long = uint64  /* types.h:33:27 */
+type X__u_char = uint8   /* types.h:31:23 */
+type X__u_short = uint16 /* types.h:32:28 */
+type X__u_int = uint32   /* types.h:33:22 */
+type X__u_long = uint64  /* types.h:34:27 */
 
 // Fixed-size types, underlying types depend on word size and compiler.
-type X__int8_t = int8     /* types.h:36:21 */
-type X__uint8_t = uint8   /* types.h:37:23 */
-type X__int16_t = int16   /* types.h:38:26 */
-type X__uint16_t = uint16 /* types.h:39:28 */
-type X__int32_t = int32   /* types.h:40:20 */
-type X__uint32_t = uint32 /* types.h:41:22 */
-type X__int64_t = int64   /* types.h:43:25 */
-type X__uint64_t = uint64 /* types.h:44:27 */
+type X__int8_t = int8     /* types.h:37:21 */
+type X__uint8_t = uint8   /* types.h:38:23 */
+type X__int16_t = int16   /* types.h:39:26 */
+type X__uint16_t = uint16 /* types.h:40:28 */
+type X__int32_t = int32   /* types.h:41:20 */
+type X__uint32_t = uint32 /* types.h:42:22 */
+type X__int64_t = int64   /* types.h:44:25 */
+type X__uint64_t = uint64 /* types.h:45:27 */
 
 // Smallest types with at least a given width.
-type X__int_least8_t = X__int8_t     /* types.h:51:18 */
-type X__uint_least8_t = X__uint8_t   /* types.h:52:19 */
-type X__int_least16_t = X__int16_t   /* types.h:53:19 */
-type X__uint_least16_t = X__uint16_t /* types.h:54:20 */
-type X__int_least32_t = X__int32_t   /* types.h:55:19 */
-type X__uint_least32_t = X__uint32_t /* types.h:56:20 */
-type X__int_least64_t = X__int64_t   /* types.h:57:19 */
-type X__uint_least64_t = X__uint64_t /* types.h:58:20 */
+type X__int_least8_t = X__int8_t     /* types.h:52:18 */
+type X__uint_least8_t = X__uint8_t   /* types.h:53:19 */
+type X__int_least16_t = X__int16_t   /* types.h:54:19 */
+type X__uint_least16_t = X__uint16_t /* types.h:55:20 */
+type X__int_least32_t = X__int32_t   /* types.h:56:19 */
+type X__uint_least32_t = X__uint32_t /* types.h:57:20 */
+type X__int_least64_t = X__int64_t   /* types.h:58:19 */
+type X__uint_least64_t = X__uint64_t /* types.h:59:20 */
 
 // quad_t is also 64 bits.
-type X__quad_t = int64    /* types.h:62:18 */
-type X__u_quad_t = uint64 /* types.h:63:27 */
+type X__quad_t = int64    /* types.h:63:18 */
+type X__u_quad_t = uint64 /* types.h:64:27 */
 
 // Largest integral types.
-type X__intmax_t = int64   /* types.h:71:18 */
-type X__uintmax_t = uint64 /* types.h:72:27 */
+type X__intmax_t = int64   /* types.h:72:18 */
+type X__uintmax_t = uint64 /* types.h:73:27 */
 
 // The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
 //    macros for each of the OS types we define below.  The definitions
@@ -653,7 +700,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 // 	32		-- "natural" 32-bit type (always int)
 // 	64		-- "natural" 64-bit type (long or long long)
 // 	LONG32		-- 32-bit type, traditionally long
-// 	QUAD		-- 64-bit type, always long long
+// 	QUAD		-- 64-bit type, traditionally long long
 // 	WORD		-- natural type of __WORDSIZE bits (int or long)
 // 	LONGWORD	-- type of __WORDSIZE bits, traditionally long
 //
@@ -674,7 +721,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 
 // No need to mark the typedef with __extension__.
 // bits/typesizes.h -- underlying types for *_t.  Linux/s390 version.
-//    Copyright (C) 2003-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2003-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -689,7 +736,7 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // See <bits/types.h> for the meaning of these macros.  This file exists so
 //    that <bits/types.h> need not vary across different GNU platforms.
@@ -704,78 +751,106 @@ type X__uintmax_t = uint64 /* types.h:72:27 */
 
 // And for __rlim_t and __rlim64_t.
 
+// And for fsblkcnt_t, fsblkcnt64_t, fsfilcnt_t and fsfilcnt64_t.
+
 // Number of descriptors that can fit in an `fd_set'.
 
-type X__dev_t = uint64                     /* types.h:143:25 */ // Type of device numbers.
-type X__uid_t = uint32                     /* types.h:144:25 */ // Type of user identifications.
-type X__gid_t = uint32                     /* types.h:145:25 */ // Type of group identifications.
-type X__ino_t = uint64                     /* types.h:146:25 */ // Type of file serial numbers.
-type X__ino64_t = uint64                   /* types.h:147:27 */ // Type of file serial numbers (LFS).
-type X__mode_t = uint32                    /* types.h:148:26 */ // Type of file attribute bitmasks.
-type X__nlink_t = uint64                   /* types.h:149:27 */ // Type of file link counts.
-type X__off_t = int64                      /* types.h:150:25 */ // Type of file sizes and offsets.
-type X__off64_t = int64                    /* types.h:151:27 */ // Type of file sizes and offsets (LFS).
-type X__pid_t = int32                      /* types.h:152:25 */ // Type of process identifications.
-type X__fsid_t = struct{ F__val [2]int32 } /* types.h:153:26 */ // Type of file system IDs.
-type X__clock_t = int64                    /* types.h:154:27 */ // Type of CPU usage counts.
-type X__rlim_t = uint64                    /* types.h:155:26 */ // Type for resource measurement.
-type X__rlim64_t = uint64                  /* types.h:156:28 */ // Type for resource measurement (LFS).
-type X__id_t = uint32                      /* types.h:157:24 */ // General type for IDs.
-type X__time_t = int64                     /* types.h:158:26 */ // Seconds since the Epoch.
-type X__useconds_t = uint32                /* types.h:159:30 */ // Count of microseconds.
-type X__suseconds_t = int64                /* types.h:160:31 */ // Signed count of microseconds.
+// bits/time64.h -- underlying types for __time64_t.  Generic version.
+//    Copyright (C) 2018-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Define __TIME64_T_TYPE so that it is always a 64-bit type.
+
+// If we already have 64-bit time type then use it.
 
-type X__daddr_t = int32 /* types.h:162:27 */ // The type of a disk address.
-type X__key_t = int32   /* types.h:163:25 */ // Type of an IPC key.
+type X__dev_t = uint64                     /* types.h:145:25 */ // Type of device numbers.
+type X__uid_t = uint32                     /* types.h:146:25 */ // Type of user identifications.
+type X__gid_t = uint32                     /* types.h:147:25 */ // Type of group identifications.
+type X__ino_t = uint64                     /* types.h:148:25 */ // Type of file serial numbers.
+type X__ino64_t = uint64                   /* types.h:149:27 */ // Type of file serial numbers (LFS).
+type X__mode_t = uint32                    /* types.h:150:26 */ // Type of file attribute bitmasks.
+type X__nlink_t = uint64                   /* types.h:151:27 */ // Type of file link counts.
+type X__off_t = int64                      /* types.h:152:25 */ // Type of file sizes and offsets.
+type X__off64_t = int64                    /* types.h:153:27 */ // Type of file sizes and offsets (LFS).
+type X__pid_t = int32                      /* types.h:154:25 */ // Type of process identifications.
+type X__fsid_t = struct{ F__val [2]int32 } /* types.h:155:26 */ // Type of file system IDs.
+type X__clock_t = int64                    /* types.h:156:27 */ // Type of CPU usage counts.
+type X__rlim_t = uint64                    /* types.h:157:26 */ // Type for resource measurement.
+type X__rlim64_t = uint64                  /* types.h:158:28 */ // Type for resource measurement (LFS).
+type X__id_t = uint32                      /* types.h:159:24 */ // General type for IDs.
+type X__time_t = int64                     /* types.h:160:26 */ // Seconds since the Epoch.
+type X__useconds_t = uint32                /* types.h:161:30 */ // Count of microseconds.
+type X__suseconds_t = int64                /* types.h:162:31 */ // Signed count of microseconds.
+
+type X__daddr_t = int32 /* types.h:164:27 */ // The type of a disk address.
+type X__key_t = int32   /* types.h:165:25 */ // Type of an IPC key.
 
 // Clock ID used in clock and timer functions.
-type X__clockid_t = int32 /* types.h:166:29 */
+type X__clockid_t = int32 /* types.h:168:29 */
 
 // Timer ID returned by `timer_create'.
-type X__timer_t = uintptr /* types.h:169:12 */
+type X__timer_t = uintptr /* types.h:171:12 */
 
 // Type to represent block size.
-type X__blksize_t = int64 /* types.h:172:29 */
+type X__blksize_t = int64 /* types.h:174:29 */
 
 // Types from the Large File Support interface.
 
 // Type to count number of disk blocks.
-type X__blkcnt_t = int64   /* types.h:177:28 */
-type X__blkcnt64_t = int64 /* types.h:178:30 */
+type X__blkcnt_t = int64   /* types.h:179:28 */
+type X__blkcnt64_t = int64 /* types.h:180:30 */
 
 // Type to count file system blocks.
-type X__fsblkcnt_t = uint64   /* types.h:181:30 */
-type X__fsblkcnt64_t = uint64 /* types.h:182:32 */
+type X__fsblkcnt_t = uint64   /* types.h:183:30 */
+type X__fsblkcnt64_t = uint64 /* types.h:184:32 */
 
 // Type to count file system nodes.
-type X__fsfilcnt_t = uint64   /* types.h:185:30 */
-type X__fsfilcnt64_t = uint64 /* types.h:186:32 */
+type X__fsfilcnt_t = uint64   /* types.h:187:30 */
+type X__fsfilcnt64_t = uint64 /* types.h:188:32 */
 
 // Type of miscellaneous file system fields.
-type X__fsword_t = int64 /* types.h:189:28 */
+type X__fsword_t = int64 /* types.h:191:28 */
 
-type X__ssize_t = int64 /* types.h:191:27 */ // Type of a byte count, or error.
+type X__ssize_t = int64 /* types.h:193:27 */ // Type of a byte count, or error.
 
 // Signed long type used in system calls.
-type X__syscall_slong_t = int64 /* types.h:194:33 */
+type X__syscall_slong_t = int64 /* types.h:196:33 */
 // Unsigned long type used in system calls.
-type X__syscall_ulong_t = uint64 /* types.h:196:33 */
+type X__syscall_ulong_t = uint64 /* types.h:198:33 */
 
 // These few don't really vary by system, they always correspond
 //    to one of the other defined types.
-type X__loff_t = X__off64_t /* types.h:200:19 */ // Type of file sizes and offsets (LFS).
-type X__caddr_t = uintptr   /* types.h:201:14 */
+type X__loff_t = X__off64_t /* types.h:202:19 */ // Type of file sizes and offsets (LFS).
+type X__caddr_t = uintptr   /* types.h:203:14 */
 
 // Duplicates info from stdint.h but this is used in unistd.h.
-type X__intptr_t = int64 /* types.h:204:25 */
+type X__intptr_t = int64 /* types.h:206:25 */
 
 // Duplicate info from sys/socket.h.
-type X__socklen_t = uint32 /* types.h:207:23 */
+type X__socklen_t = uint32 /* types.h:209:23 */
 
 // C99: An integer type that can be accessed as an atomic entity,
 //    even in the presence of asynchronous interrupts.
 //    It is not currently necessary for this to be machine-specific.
-type X__sig_atomic_t = int32 /* types.h:212:13 */
+type X__sig_atomic_t = int32 /* types.h:214:13 */
+
+// Seconds since the Epoch, visible to user code when time_t is too
+//    narrow only for consistency with the old way of widening too-narrow
+//    types.  User code should never use __time64_t.
 
 type U_char = X__u_char     /* types.h:33:18 */
 type U_short = X__u_short   /* types.h:34:19 */
@@ -812,7 +887,7 @@ type Caddr_t = X__caddr_t /* types.h:115:19 */
 type Key_t = X__key_t /* types.h:121:17 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -827,7 +902,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -835,7 +910,7 @@ type Key_t = X__key_t /* types.h:121:17 */
 type Clock_t = X__clock_t /* clock_t.h:7:19 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -850,7 +925,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -858,7 +933,7 @@ type Clock_t = X__clock_t /* clock_t.h:7:19 */
 type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -873,7 +948,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -881,7 +956,7 @@ type Clockid_t = X__clockid_t /* clockid_t.h:7:21 */
 type Time_t = X__time_t /* time_t.h:7:18 */
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -896,7 +971,7 @@ type Time_t = X__time_t /* time_t.h:7:18 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -911,11 +986,6 @@ type Timer_t = X__timer_t /* timer_t.h:7:19 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // Old compatibility names for C types.
@@ -926,7 +996,7 @@ type Uint = uint32   /* types.h:150:22 */
 // These size-specific names are used by some of the inet code.
 
 // Define intN_t types.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -941,10 +1011,10 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -959,7 +1029,7 @@ type Uint = uint32   /* types.h:150:22 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -968,18 +1038,17 @@ type Int16_t = X__int16_t /* stdint-intn.h:25:19 */
 type Int32_t = X__int32_t /* stdint-intn.h:26:19 */
 type Int64_t = X__int64_t /* stdint-intn.h:27:19 */
 
-// For GCC 2.7 and later, we can use specific type-size attributes.
-
-type U_int8_t = uint32  /* types.h:177:1 */
-type U_int16_t = uint32 /* types.h:178:1 */
-type U_int32_t = uint32 /* types.h:179:1 */
-type U_int64_t = uint32 /* types.h:180:1 */
+// These were defined by ISO C without the first `_'.
+type U_int8_t = X__uint8_t   /* types.h:158:19 */
+type U_int16_t = X__uint16_t /* types.h:159:20 */
+type U_int32_t = X__uint32_t /* types.h:160:20 */
+type U_int64_t = X__uint64_t /* types.h:161:20 */
 
-type Register_t = int32 /* types.h:182:13 */
+type Register_t = int32 /* types.h:164:13 */
 
 // It also defines `fd_set' and the FD_* macros for `select'.
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -994,11 +1063,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1013,11 +1082,11 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Get definition of needed basic types.
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1032,12 +1101,12 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // Get __FD_* definitions.
-// Copyright (C) 1997-2018 Free Software Foundation, Inc.
+// Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1052,7 +1121,7 @@ type Register_t = int32 /* types.h:182:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // We don't use `memset' because this would require a prototype and
 //    the array isn't too big.
@@ -1067,7 +1136,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 // Get definition of timer specification structures.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1082,7 +1151,7 @@ type Sigset_t = X__sigset_t /* sigset_t.h:7:20 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1096,7 +1165,7 @@ type Timeval = struct {
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1111,16 +1180,34 @@ type Timeval = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
+// Endian macros for string.h functions
+//    Copyright (C) 1992-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
 // POSIX.1b structure for a time value.  This is like a `struct timeval' but
 //    has nanoseconds instead of microseconds.
 type Timespec = struct {
 	Ftv_sec  X__time_t
 	Ftv_nsec X__syscall_slong_t
-} /* struct_timespec.h:9:1 */
+} /* struct_timespec.h:10:1 */
 
 type Suseconds_t = X__suseconds_t /* select.h:43:23 */
 
@@ -1140,16 +1227,16 @@ type Fd_mask = X__fd_mask /* select.h:77:19 */
 
 // Define some inlines helping to catch common problems.
 
-type Blksize_t = X__blksize_t /* types.h:202:21 */
+type Blksize_t = X__blksize_t /* types.h:185:21 */
 
 // Types from the Large File Support interface.
-type Blkcnt_t = X__blkcnt64_t     /* types.h:222:22 */ // Type to count number of disk blocks.
-type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:226:24 */ // Type to count file system blocks.
-type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file system inodes.
+type Blkcnt_t = X__blkcnt64_t     /* types.h:205:22 */ // Type to count number of disk blocks.
+type Fsblkcnt_t = X__fsblkcnt64_t /* types.h:209:24 */ // Type to count file system blocks.
+type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:213:24 */ // Type to count file system inodes.
 
 // Now add the thread types.
 // Declaration of common pthread types for all architectures.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1164,11 +1251,11 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // For internal mutex and condition variable definitions.
 // Common threading primitives definitions for both POSIX and C11.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1183,7 +1270,7 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Arch-specific definitions.  Each architecture must define the following
 //    macros to define the expected sizes of pthread data types:
@@ -1198,35 +1285,95 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
 //    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
-//    Also, the following macros must be define for internal pthread_mutex_t
-//    struct definitions (struct __pthread_mutex_s):
+//    The additional macro defines any constraint for the lock alignment
+//    inside the thread structures:
+//
+//    __LOCK_ALIGNMENT - for internal lock/futex usage.
+//
+//    Same idea but for the once locking primitive:
+//
+//    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Machine-specific pthread type layouts.  Generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+// Determine the wordsize from the preprocessor defines.
+
+// Common definition of pthread_mutex_t.
+
+type X__pthread_internal_list = struct {
+	F__prev uintptr
+	F__next uintptr
+} /* thread-shared-types.h:49:9 */
+
+// Type to count file system inodes.
+
+// Now add the thread types.
+// Declaration of common pthread types for all architectures.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-//    __PTHREAD_COMPAT_PADDING_MID   - any additional members after 'kind'
-// 				    and before '__spin' (for 64 bits) or
-// 				    '__nusers' (for 32 bits).
-//    __PTHREAD_COMPAT_PADDING_END   - any additional members at the end of
-// 				    the internal structure.
-//    __PTHREAD_MUTEX_LOCK_ELISION   - 1 if the architecture supports lock
-// 				    elision or 0 otherwise.
-//    __PTHREAD_MUTEX_NUSERS_AFTER_KIND - control where to put __nusers.  The
-// 				       preferred value for new architectures
-// 				       is 0.
-//    __PTHREAD_MUTEX_USE_UNION      - control whether internal __spins and
-// 				    __list will be place inside a union for
-// 				    linuxthreads compatibility.
-// 				    The preferred value for new architectures
-// 				    is 0.
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// For internal mutex and condition variable definitions.
+// Common threading primitives definitions for both POSIX and C11.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
 //
-//    For a new port the preferred values for the required defines are:
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
 //
-//    #define __PTHREAD_COMPAT_PADDING_MID
-//    #define __PTHREAD_COMPAT_PADDING_END
-//    #define __PTHREAD_MUTEX_LOCK_ELISION         0
-//    #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND    0
-//    #define __PTHREAD_MUTEX_USE_UNION            0
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
 //
-//    __PTHREAD_MUTEX_LOCK_ELISION can be set to 1 if the hardware plans to
-//    eventually support lock elision using transactional memory.
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <https://www.gnu.org/licenses/>.
+
+// Arch-specific definitions.  Each architecture must define the following
+//    macros to define the expected sizes of pthread data types:
+//
+//    __SIZEOF_PTHREAD_ATTR_T        - size of pthread_attr_t.
+//    __SIZEOF_PTHREAD_MUTEX_T       - size of pthread_mutex_t.
+//    __SIZEOF_PTHREAD_MUTEXATTR_T   - size of pthread_mutexattr_t.
+//    __SIZEOF_PTHREAD_COND_T        - size of pthread_cond_t.
+//    __SIZEOF_PTHREAD_CONDATTR_T    - size of pthread_condattr_t.
+//    __SIZEOF_PTHREAD_RWLOCK_T      - size of pthread_rwlock_t.
+//    __SIZEOF_PTHREAD_RWLOCKATTR_T  - size of pthread_rwlockattr_t.
+//    __SIZEOF_PTHREAD_BARRIER_T     - size of pthread_barrier_t.
+//    __SIZEOF_PTHREAD_BARRIERATTR_T - size of pthread_barrierattr_t.
 //
 //    The additional macro defines any constraint for the lock alignment
 //    inside the thread structures:
@@ -1236,11 +1383,10 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 //    Same idea but for the once locking primitive:
 //
 //    __ONCE_ALIGNMENT - for pthread_once_t/once_flag definition.
+
+// Machine-specific pthread type layouts.  Generic version.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
 //
-//    And finally the internal pthread_rwlock_t (struct __pthread_rwlock_arch_t)
-//    must be defined.
-//
-// Copyright (C) 2003-2018 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1259,35 +1405,45 @@ type Fsfilcnt_t = X__fsfilcnt64_t /* types.h:230:24 */ // Type to count file sys
 
 // Determine the wordsize from the preprocessor defines.
 
-// Definitions for internal mutex struct.
-
-type X__pthread_rwlock_arch_t = struct {
-	F__readers       uint32
-	F__writers       uint32
-	F__wrphase_futex uint32
-	F__writers_futex uint32
-	F__pad3          uint32
-	F__pad4          uint32
-	F__cur_writer    int32
-	F__shared        int32
-	F__pad1          uint64
-	F__pad2          uint64
-	F__flags         uint32
-	_                [4]byte
-} /* pthreadtypes-arch.h:50:1 */
-
 // Common definition of pthread_mutex_t.
 
-type X__pthread_internal_list = struct {
-	F__prev uintptr
-	F__next uintptr
-} /* thread-shared-types.h:82:9 */
+type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:53:3 */
 
-// Common definition of pthread_mutex_t.
+type X__pthread_internal_slist = struct{ F__next uintptr } /* thread-shared-types.h:55:9 */
 
-type X__pthread_list_t = X__pthread_internal_list /* thread-shared-types.h:86:3 */
+type X__pthread_slist_t = X__pthread_internal_slist /* thread-shared-types.h:58:3 */
 
-// Lock elision support.
+// Arch-specific mutex definitions.  A generic implementation is provided
+//    by sysdeps/nptl/bits/struct_mutex.h.  If required, an architecture
+//    can override it by defining:
+//
+//    1. struct __pthread_mutex_s (used on both pthread_mutex_t and mtx_t
+//       definition).  It should contains at least the internal members
+//       defined in the generic version.
+//
+//    2. __LOCK_ALIGNMENT for any extra attribute for internal lock used with
+//       atomic operations.
+//
+//    3. The macro __PTHREAD_MUTEX_INITIALIZER used for static initialization.
+//       It should initialize the mutex internal flag.
+
+// S390 internal mutex struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
 
 type X__pthread_mutex_s = struct {
 	F__lock    int32
@@ -1298,7 +1454,52 @@ type X__pthread_mutex_s = struct {
 	F__spins   int16
 	F__elision int16
 	F__list    X__pthread_list_t
-} /* thread-shared-types.h:118:1 */
+} /* struct_mutex.h:22:1 */
+
+// Arch-sepecific read-write lock definitions.  A generic implementation is
+//    provided by struct_rwlock.h.  If required, an architecture can override it
+//    by defining:
+//
+//    1. struct __pthread_rwlock_arch_t (used on pthread_rwlock_t definition).
+//       It should contain at least the internal members defined in the
+//       generic version.
+//
+//    2. The macro __PTHREAD_RWLOCK_INITIALIZER used for static initialization.
+//       It should initialize the rwlock internal type.
+
+// S390 internal rwlock struct definitions.
+//    Copyright (C) 2019-2020 Free Software Foundation, Inc.
+//
+//    This file is part of the GNU C Library.
+//
+//    The GNU C Library is free software; you can redistribute it and/or
+//    modify it under the terms of the GNU Lesser General Public
+//    License as published by the Free Software Foundation; either
+//    version 2.1 of the License, or (at your option) any later version.
+//
+//    The GNU C Library is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//    Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public
+//    License along with the GNU C Library; if not, see
+//    <http://www.gnu.org/licenses/>.
+
+type X__pthread_rwlock_arch_t = struct {
+	F__readers       uint32
+	F__writers       uint32
+	F__wrphase_futex uint32
+	F__writers_futex uint32
+	F__pad3          uint32
+	F__pad4          uint32
+	F__cur_writer    int32
+	F__shared        int32
+	F__pad1          uint64
+	F__pad2          uint64
+	F__flags         uint32
+	F__ccgo_pad1     [4]byte
+} /* struct_rwlock.h:23:1 */
 
 // Common definition of pthread_cond_t.
 
@@ -1310,7 +1511,7 @@ type X__pthread_cond_s = struct {
 	F__g1_orig_size uint32
 	F__wrefs        uint32
 	F__g_signals    [2]uint32
-} /* thread-shared-types.h:171:1 */
+} /* thread-shared-types.h:92:1 */
 
 // Thread identifiers.  The structure of the attribute type is not
 //    exposed on purpose.
@@ -1319,15 +1520,15 @@ type Pthread_t = uint64 /* pthreadtypes.h:27:27 */
 // Data structures for mutex handling.  The structure of the attribute
 //    type is not exposed on purpose.
 type Pthread_mutexattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:36:3 */
 
 // Data structure for condition variable handling.  The structure of
 //    the attribute type is not exposed on purpose.
 type Pthread_condattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:45:3 */
 
 // Keys for thread-specific data
@@ -1337,8 +1538,8 @@ type Pthread_key_t = uint32 /* pthreadtypes.h:49:22 */
 type Pthread_once_t = int32 /* pthreadtypes.h:53:30 */
 
 type Pthread_attr_t1 = struct {
-	_       [0]uint64
-	F__size [56]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [56]uint8
 } /* pthreadtypes.h:56:1 */
 
 type Pthread_attr_t = Pthread_attr_t1 /* pthreadtypes.h:62:30 */
@@ -1352,8 +1553,8 @@ type Pthread_cond_t = struct{ F__data X__pthread_cond_s } /* pthreadtypes.h:80:3
 type Pthread_rwlock_t = struct{ F__data X__pthread_rwlock_arch_t } /* pthreadtypes.h:91:3 */
 
 type Pthread_rwlockattr_t = struct {
-	_       [0]uint64
-	F__size [8]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [8]uint8
 } /* pthreadtypes.h:97:3 */
 
 // POSIX spinlock data type.
@@ -1362,16 +1563,16 @@ type Pthread_spinlock_t = int32 /* pthreadtypes.h:103:22 */
 // POSIX barriers data type.  The structure of the type is
 //    deliberately not exposed.
 type Pthread_barrier_t = struct {
-	_       [0]uint64
-	F__size [32]int8
+	F__ccgo_pad1 [0]uint64
+	F__size      [32]uint8
 } /* pthreadtypes.h:112:3 */
 
 type Pthread_barrierattr_t = struct {
-	_       [0]uint32
-	F__size [4]int8
+	F__ccgo_pad1 [0]uint32
+	F__size      [4]uint8
 } /* pthreadtypes.h:118:3 */
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1386,9 +1587,9 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1403,10 +1604,10 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1421,12 +1622,12 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // `fd_set' type and related macros, and `select'/`pselect' declarations.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1441,7 +1642,7 @@ type Pthread_barrierattr_t = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	POSIX 1003.1g: 6.2 Select from File Descriptor Sets <sys/select.h>
 
@@ -1452,8 +1653,6 @@ type Timezone = struct {
 	Ftz_dsttime     int32
 } /* time.h:52:1 */
 
-type X__timezone_ptr_t = uintptr /* time.h:58:25 */
-
 // Type of the second argument to `getitimer' and
 //    the second and third arguments `setitimer'.
 type Itimerval = struct {
@@ -1465,14 +1664,14 @@ type Itimerval = struct {
 		Ftv_sec  X__time_t
 		Ftv_usec X__suseconds_t
 	}
-} /* time.h:104:1 */
+} /* time.h:105:1 */
 
-type X__itimer_which_t = int32 /* time.h:117:13 */
+type X__itimer_which_t = int32 /* time.h:118:13 */
 
 // Convenience macros for operations on timevals.
 //    NOTE: `timercmp' does not work for >= or <=.
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1487,11 +1686,11 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 //	ISO C99 Standard: 7.23 Date and time	<time.h>
 
-// Copyright (C) 1991-2018 Free Software Foundation, Inc.
+// Copyright (C) 1991-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1506,9 +1705,9 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
-// Copyright (C) 1989-2018 Free Software Foundation, Inc.
+// Copyright (C) 1989-2020 Free Software Foundation, Inc.
 //
 // This file is part of GCC.
 //
@@ -1540,15 +1739,6 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // This avoids lossage on SunOS but only if stdtypes.h comes first.
 //    There's no way to win with the other order!  Sun lossage.
 
-// On 4.3bsd-net2, make sure ansi.h is included, so we have
-//    one less case to deal with in the following.
-// On FreeBSD 5, machine/ansi.h does not exist anymore...
-
-// In 4.3bsd-net2, machine/ansi.h defines these symbols, which are
-//    defined if the corresponding type is *not* defined.
-//    FreeBSD-2.1 defines _MACHINE_ANSI_H_ instead of _ANSI_H_.
-//    NetBSD defines _I386_ANSI_H_ and _X86_64_ANSI_H_ instead of _ANSI_H_
-
 // Sequent's header files use _PTRDIFF_T_ in some conflicting way.
 //    Just ignore it.
 
@@ -1583,17 +1773,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 // Define this type if we are doing the whole job,
 //    or if we want this type in particular.
 
-//  In 4.3bsd-net2, leave these undefined to indicate that size_t, etc.
-//     are already defined.
-//  BSD/OS 3.1 and FreeBSD [23].x require the MACHINE_ANSI_H check here.
-//  NetBSD 5 requires the I386_ANSI_H and X86_64_ANSI_H checks here.
-
 // A null pointer constant.
 
 // This defines CLOCKS_PER_SEC, which is the number of processor clock
 //    ticks per second, and possibly a number of other constants.
 // System-dependent timing definitions.  Linux version.
-//    Copyright (C) 1996-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1996-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1608,12 +1793,12 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <time.h> instead.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1628,7 +1813,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1657,7 +1842,7 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //    may also need to be defined by other headers.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1672,30 +1857,30 @@ type X__itimer_which_t = int32 /* time.h:117:13 */
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
 // ISO C `broken-down time' structure.
 type Tm = struct {
-	Ftm_sec    int32
-	Ftm_min    int32
-	Ftm_hour   int32
-	Ftm_mday   int32
-	Ftm_mon    int32
-	Ftm_year   int32
-	Ftm_wday   int32
-	Ftm_yday   int32
-	Ftm_isdst  int32
-	_          [4]byte
-	Ftm_gmtoff int64
-	Ftm_zone   uintptr
+	Ftm_sec      int32
+	Ftm_min      int32
+	Ftm_hour     int32
+	Ftm_mday     int32
+	Ftm_mon      int32
+	Ftm_year     int32
+	Ftm_wday     int32
+	Ftm_yday     int32
+	Ftm_isdst    int32
+	F__ccgo_pad1 [4]byte
+	Ftm_gmtoff   int64
+	Ftm_zone     uintptr
 } /* struct_tm.h:7:1 */
 
 // NB: Include guard matches what <linux/time.h> uses.
 
 // bits/types.h -- definitions of __*_t types underlying *_t types.
-//    Copyright (C) 2002-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2002-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1710,7 +1895,7 @@ type Tm = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Never include this file directly; use <sys/types.h> instead.
 
@@ -1729,7 +1914,7 @@ type Itimerspec = struct {
 } /* struct_itimerspec.h:8:1 */
 
 // Definition of locale_t.
-//    Copyright (C) 2017-2018 Free Software Foundation, Inc.
+//    Copyright (C) 2017-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //
 //    The GNU C Library is free software; you can redistribute it and/or
@@ -1744,10 +1929,10 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // Definition of struct __locale_struct and __locale_t.
-//    Copyright (C) 1997-2018 Free Software Foundation, Inc.
+//    Copyright (C) 1997-2020 Free Software Foundation, Inc.
 //    This file is part of the GNU C Library.
 //    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 //
@@ -1763,7 +1948,7 @@ type Itimerspec = struct {
 //
 //    You should have received a copy of the GNU Lesser General Public
 //    License along with the GNU C Library; if not, see
-//    <http://www.gnu.org/licenses/>.
+//    <https://www.gnu.org/licenses/>.
 
 // POSIX.1-2008: the locale_t type, representing a locale context
 //    (implementation-namespace version).  This type should be treated
@@ -1784,4 +1969,4 @@ type Locale_t = X__locale_t /* locale_t.h:24:20 */
 
 type Uuid_t = [16]uint8 /* uuid.h:44:23 */
 
-var _ int8 /* gen.c:2:13: */
+var _ uint8 /* gen.c:2:13: */