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-rw-r--r--configure.ac775
1 files changed, 575 insertions, 200 deletions
diff --git a/configure.ac b/configure.ac
index b09b8e446f..bbdde85c3d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,54 +1,68 @@
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
-AC_PREREQ(2.59)
-AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
-
-AC_CONFIG_SRCDIR([git.c])
-
-config_file=config.mak.autogen
-config_append=config.mak.append
-config_in=config.mak.in
-
-echo "# ${config_append}. Generated by configure." > "${config_append}"
+## Definitions of private macros.
+
+# GIT_CONF_SUBST(VAL, VAR)
+# ------------------------
+# Cause the line "VAR=VAL" to be eventually appended to ${config_file}.
+AC_DEFUN([GIT_CONF_SUBST],
+[AC_REQUIRE([GIT_CONF_SUBST_INIT])
+config_appended_defs="$config_appended_defs${newline}dnl
+$1=m4_if([$#],[1],[${$1}],[$2])"])
+
+# GIT_CONF_SUBST_INIT
+# -------------------
+# Prepare shell variables and autoconf machine required by later calls
+# to GIT_CONF_SUBST.
+AC_DEFUN([GIT_CONF_SUBST_INIT],
+ [config_appended_defs=; newline='
+'
+ AC_CONFIG_COMMANDS([$config_file],
+ [echo "$config_appended_defs" >> "$config_file"],
+ [config_file=$config_file
+ config_appended_defs="$config_appended_defs"])])
-
-## Definitions of macros
-# GIT_CONF_APPEND_LINE(LINE)
-# --------------------------
-# Append LINE to file ${config_append}
-AC_DEFUN([GIT_CONF_APPEND_LINE],
-[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
-#
# GIT_ARG_SET_PATH(PROGRAM)
# -------------------------
# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
+# Optional second argument allows setting NO_PROGRAM=YesPlease if
+# --without-PROGRAM version used.
AC_DEFUN([GIT_ARG_SET_PATH],
-[AC_ARG_WITH([$1],
- [AS_HELP_STRING([--with-$1=PATH],
- [provide PATH to $1])],
- [GIT_CONF_APPEND_PATH($1)],[])
-])# GIT_ARG_SET_PATH
-#
+ [AC_ARG_WITH([$1],
+ [AS_HELP_STRING([--with-$1=PATH],
+ [provide PATH to $1])],
+ [GIT_CONF_APPEND_PATH([$1], [$2])],
+ [])])
+
# GIT_CONF_APPEND_PATH(PROGRAM)
-# ------------------------------
+# -----------------------------
# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
# Used by GIT_ARG_SET_PATH(PROGRAM)
+# Optional second argument allows setting NO_PROGRAM=YesPlease if
+# --without-PROGRAM is used.
AC_DEFUN([GIT_CONF_APPEND_PATH],
-[PROGRAM=m4_toupper($1); \
-if test "$withval" = "no"; then \
- AC_MSG_ERROR([You cannot use git without $1]); \
-else \
- if test "$withval" = "yes"; then \
- AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
- else \
- m4_toupper($1)_PATH=$withval; \
- AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \
- GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
- fi; \
-fi; \
-]) # GIT_CONF_APPEND_PATH
-#
+ [m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl
+ if test "$withval" = "no"; then
+ if test -n "$2"; then
+ GIT_UC_PROGRAM[]_PATH=$withval
+ AC_MSG_NOTICE([Disabling use of GIT_UC_PROGRAM])
+ GIT_CONF_SUBST([NO_]GIT_UC_PROGRAM, [YesPlease])
+ GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, [])
+ else
+ AC_MSG_ERROR([You cannot use git without $1])
+ fi
+ else
+ if test "$withval" = "yes"; then
+ AC_MSG_WARN([You should provide path for --with-$1=PATH])
+ else
+ GIT_UC_PROGRAM[]_PATH=$withval
+ AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval])
+ GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, [$withval])
+ fi
+ fi
+ m4_popdef([GIT_UC_PROGRAM])])
+
# GIT_PARSE_WITH(PACKAGE)
# -----------------------
# For use in AC_ARG_WITH action-if-found, for packages default ON.
@@ -56,36 +70,55 @@ fi; \
# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
# * Unset NO_PACKAGE for --with-PACKAGE without ARG
AC_DEFUN([GIT_PARSE_WITH],
-[PACKAGE=m4_toupper($1); \
-if test "$withval" = "no"; then \
- m4_toupper(NO_$1)=YesPlease; \
-elif test "$withval" = "yes"; then \
- m4_toupper(NO_$1)=; \
-else \
- m4_toupper(NO_$1)=; \
- m4_toupper($1)DIR=$withval; \
- AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \
- GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
-fi \
-])# GIT_PARSE_WITH
+ [m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl
+ if test "$withval" = "no"; then
+ NO_[]GIT_UC_PACKAGE=YesPlease
+ elif test "$withval" = "yes"; then
+ NO_[]GIT_UC_PACKAGE=
+ else
+ NO_[]GIT_UC_PACKAGE=
+ GIT_UC_PACKAGE[]DIR=$withval
+ AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval])
+ GIT_CONF_SUBST(GIT_UC_PACKAGE[DIR], [$withval])
+ fi
+ m4_popdef([GIT_UC_PACKAGE])])
+
+# GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT)
+# -----------------------------------------------------
+# Set VAR to the value specied by --with-WITHNAME.
+# No verification of arguments is performed, but warnings are issued
+# if either 'yes' or 'no' is specified.
+# HELP_TEXT is presented when --help is called.
+# This is a direct way to allow setting variables in the Makefile.
+AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR],
+[AC_ARG_WITH([$1],
+ [AS_HELP_STRING([--with-$1=VALUE], $3)],
+ if test -n "$withval"; then
+ if test "$withval" = "yes" -o "$withval" = "no"; then
+ AC_MSG_WARN([You likely do not want either 'yes' or 'no' as]
+ [a value for $1 ($2). Maybe you do...?])
+ fi
+ AC_MSG_NOTICE([Setting $2 to $withval])
+ GIT_CONF_SUBST([$2], [$withval])
+ fi)])# GIT_PARSE_WITH_SET_MAKE_VAR
-dnl
-dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
-dnl -----------------------------------------
-dnl Similar to AC_CHECK_FUNC, but on systems that do not generate
-dnl warnings for missing prototypes (e.g. FreeBSD when compiling without
-dnl -Wall), it does not work. By looking for function definition in
-dnl libraries, this problem can be worked around.
+#
+# GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
+# -----------------------------------------
+# Similar to AC_CHECK_FUNC, but on systems that do not generate
+# warnings for missing prototypes (e.g. FreeBSD when compiling without
+# -Wall), it does not work. By looking for function definition in
+# libraries, this problem can be worked around.
AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
AC_SEARCH_LIBS([$1],,
[$2],[$3])
],[$3])])
-dnl
-dnl GIT_STASH_FLAGS(BASEPATH_VAR)
-dnl -----------------------------
-dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running
-dnl tests that may want to take user settings into account.
+#
+# GIT_STASH_FLAGS(BASEPATH_VAR)
+# -----------------------------
+# Allow for easy stashing of LDFLAGS and CPPFLAGS before running
+# tests that may want to take user settings into account.
AC_DEFUN([GIT_STASH_FLAGS],[
if test -n "$1"; then
old_CPPFLAGS="$CPPFLAGS"
@@ -106,6 +139,35 @@ if test -n "$1"; then
fi
])
+## Configure body starts here.
+
+AC_PREREQ(2.59)
+AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
+
+AC_CONFIG_SRCDIR([git.c])
+
+config_file=config.mak.autogen
+config_in=config.mak.in
+
+GIT_CONF_SUBST([AUTOCONFIGURED], [YesPlease])
+
+# Directories holding "saner" versions of common or POSIX binaries.
+AC_ARG_WITH([sane-tool-path],
+ [AS_HELP_STRING(
+ [--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]],
+ [Directories to prepend to PATH in build system and generated scripts])],
+ [if test "$withval" = "no"; then
+ withval=''
+ else
+ AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval'])
+ fi
+ GIT_CONF_SUBST([SANE_TOOL_PATH], [$withval])],
+ [# If the "--with-sane-tool-path" option was not given, don't touch
+ # SANE_TOOL_PATH here, but let defaults in Makefile take care of it.
+ # This should minimize spurious differences in the behaviour of the
+ # Git build system when configure is used w.r.t. when it is not.
+ :])
+
## Site configuration related to programs (before tests)
## --with-PACKAGE[=ARG] and --without-PACKAGE
#
@@ -113,14 +175,13 @@ fi
AC_ARG_WITH([lib],
[AS_HELP_STRING([--with-lib=ARG],
[ARG specifies alternative name for lib directory])],
- [if test "$withval" = "no" || test "$withval" = "yes"; then \
- AC_MSG_WARN([You should provide name for --with-lib=ARG]); \
-else \
- lib=$withval; \
- AC_MSG_NOTICE([Setting lib to '$lib']); \
- GIT_CONF_APPEND_LINE(lib=$withval); \
-fi; \
-],[])
+ [if test "$withval" = "no" || test "$withval" = "yes"; then
+ AC_MSG_WARN([You should provide name for --with-lib=ARG])
+ else
+ lib=$withval
+ AC_MSG_NOTICE([Setting lib to '$lib'])
+ GIT_CONF_SUBST([lib])
+ fi])
if test -z "$lib"; then
AC_MSG_NOTICE([Setting lib to 'lib' (the default)])
@@ -132,7 +193,7 @@ AC_ARG_ENABLE([pthreads],
[FLAGS is the value to pass to the compiler to enable POSIX Threads.]
[The default if FLAGS is not specified is to try first -pthread]
[and then -lpthread.]
- [--without-pthreads will disable threading.])],
+ [--disable-pthreads will disable threading.])],
[
if test "x$enableval" = "xyes"; then
AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads])
@@ -148,6 +209,26 @@ fi],
AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.])
])
+# Define option to enable JavaScript minification
+AC_ARG_ENABLE([jsmin],
+[AS_HELP_STRING([--enable-jsmin=PATH],
+ [PATH is the name of a JavaScript minifier or the absolute path to one.])],
+[
+ JSMIN=$enableval;
+ AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying])
+ GIT_CONF_SUBST([JSMIN])
+])
+
+# Define option to enable CSS minification
+AC_ARG_ENABLE([cssmin],
+[AS_HELP_STRING([--enable-cssmin=PATH],
+ [PATH is the name of a CSS minifier or the absolute path to one.])],
+[
+ CSSMIN=$enableval;
+ AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying])
+ GIT_CONF_SUBST([CSSMIN])
+])
+
## Site configuration (override autodetection)
## --with-PACKAGE[=ARG] and --without-PACKAGE
AC_MSG_NOTICE([CHECKS for site configuration])
@@ -166,8 +247,38 @@ AC_MSG_NOTICE([CHECKS for site configuration])
# /foo/bar/include and /foo/bar/lib directories.
AC_ARG_WITH(openssl,
AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
-AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),\
-GIT_PARSE_WITH(openssl))
+AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),
+GIT_PARSE_WITH([openssl]))
+
+# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
+# able to use Perl-compatible regular expressions.
+#
+# Define LIBPCREDIR=/foo/bar if your libpcre header and library files are in
+# /foo/bar/include and /foo/bar/lib directories.
+#
+AC_ARG_WITH(libpcre,
+AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)])
+AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
+ if test "$withval" = "no"; then
+ USE_LIBPCRE=
+ elif test "$withval" = "yes"; then
+ USE_LIBPCRE=YesPlease
+ else
+ USE_LIBPCRE=YesPlease
+ LIBPCREDIR=$withval
+ AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR])
+ dnl USE_LIBPCRE can still be modified below, so don't substitute
+ dnl it yet.
+ GIT_CONF_SUBST([LIBPCREDIR])
+ fi)
+#
+# Define HAVE_ALLOCA_H if you have working alloca(3) defined in that header.
+AC_FUNC_ALLOCA
+case $ac_cv_working_alloca_h in
+ yes) HAVE_ALLOCA_H=YesPlease;;
+ *) HAVE_ALLOCA_H='';;
+esac
+GIT_CONF_SUBST([HAVE_ALLOCA_H])
#
# Define NO_CURL if you do not have curl installed. git-http-pull and
# git-http-push are not built, and you cannot use http:// and https://
@@ -227,12 +338,46 @@ GIT_PARSE_WITH(iconv))
# change being considered an inode change from the update-index perspective.
#
+# Allow user to set ETC_GITCONFIG variable
+GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG,
+ Use VALUE instead of /etc/gitconfig as the
+ global git configuration file.
+ If VALUE is not fully qualified it will be interpreted
+ as a path relative to the computed prefix at runtime.)
+
+#
+# Allow user to set ETC_GITATTRIBUTES variable
+GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES,
+ Use VALUE instead of /etc/gitattributes as the
+ global git attributes file.
+ If VALUE is not fully qualified it will be interpreted
+ as a path relative to the computed prefix at runtime.)
+
+#
+# Allow user to set the default pager
+GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER,
+ Use VALUE as the fall-back pager instead of 'less'.
+ This is used by things like 'git log' when the user
+ does not specify a pager to use through alternate
+ methods. eg: /usr/bin/pager)
+#
+# Allow user to set the default editor
+GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR,
+ Use VALUE as the fall-back editor instead of 'vi'.
+ This is used by things like 'git commit' when the user
+ does not specify a preferred editor through other
+ methods. eg: /usr/bin/editor)
+
+#
# Define SHELL_PATH to provide path to shell.
GIT_ARG_SET_PATH(shell)
#
# Define PERL_PATH to provide path to Perl.
GIT_ARG_SET_PATH(perl)
#
+# Define PYTHON_PATH to provide path to Python.
+GIT_ARG_SET_PATH(python, allow-without)
+#
# Define ZLIB_PATH to provide path to zlib.
GIT_ARG_SET_PATH(zlib)
#
@@ -241,7 +386,7 @@ AC_ARG_WITH(tcltk,
AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
-AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
+AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),
GIT_PARSE_WITH(tcltk))
#
@@ -250,77 +395,81 @@ GIT_PARSE_WITH(tcltk))
AC_MSG_NOTICE([CHECKS for programs])
#
AC_PROG_CC([cc gcc])
+AC_C_INLINE
+case $ac_cv_c_inline in
+ inline | yes | no) INLINE='';;
+ *) INLINE=$ac_cv_c_inline ;;
+esac
+GIT_CONF_SUBST([INLINE])
+
# which switch to pass runtime path to dynamic libraries to the linker
AC_CACHE_CHECK([if linker supports -R], git_cv_ld_dashr, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${SAVE_LDFLAGS} -R /"
- AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_dashr=yes], [git_cv_ld_dashr=no])
LDFLAGS="${SAVE_LDFLAGS}"
])
if test "$git_cv_ld_dashr" = "yes"; then
- AC_SUBST(CC_LD_DYNPATH, [-R])
+ CC_LD_DYNPATH=-R
else
AC_CACHE_CHECK([if linker supports -Wl,-rpath,], git_cv_ld_wl_rpath, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${SAVE_LDFLAGS} -Wl,-rpath,/"
- AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_rpath=yes], [git_cv_ld_wl_rpath=no])
LDFLAGS="${SAVE_LDFLAGS}"
])
if test "$git_cv_ld_wl_rpath" = "yes"; then
- AC_SUBST(CC_LD_DYNPATH, [-Wl,-rpath,])
+ CC_LD_DYNPATH=-Wl,-rpath,
else
AC_CACHE_CHECK([if linker supports -rpath], git_cv_ld_rpath, [
SAVE_LDFLAGS="${LDFLAGS}"
LDFLAGS="${SAVE_LDFLAGS} -rpath /"
- AC_LINK_IFELSE(AC_LANG_PROGRAM([], []), [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_rpath=yes], [git_cv_ld_rpath=no])
LDFLAGS="${SAVE_LDFLAGS}"
])
if test "$git_cv_ld_rpath" = "yes"; then
- AC_SUBST(CC_LD_DYNPATH, [-rpath])
+ CC_LD_DYNPATH=-rpath
else
+ CC_LD_DYNPATH=
AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
fi
fi
fi
+GIT_CONF_SUBST([CC_LD_DYNPATH])
#AC_PROG_INSTALL # needs install-sh or install.sh in sources
AC_CHECK_TOOLS(AR, [gar ar], :)
AC_CHECK_PROGS(TAR, [gtar tar])
+AC_CHECK_PROGS(DIFF, [gnudiff gdiff diff])
# TCLTK_PATH will be set to some value if we want Tcl/Tk
# or will be empty otherwise.
-if test -z "$NO_TCLTK"; then
+if test -n "$NO_TCLTK"; then
+ TCLTK_PATH=
+else
if test "$with_tcltk" = ""; then
# No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
TCLTK_PATH=wish
- AC_SUBST(TCLTK_PATH)
elif test "$with_tcltk" = "yes"; then
# Tcl/Tk check requested.
AC_CHECK_PROGS(TCLTK_PATH, [wish], )
else
AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
TCLTK_PATH="$with_tcltk"
- AC_SUBST(TCLTK_PATH)
fi
fi
+GIT_CONF_SUBST([TCLTK_PATH])
AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
if test -n "$ASCIIDOC"; then
AC_MSG_CHECKING([for asciidoc version])
asciidoc_version=`$ASCIIDOC --version 2>/dev/null`
case "${asciidoc_version}" in
asciidoc' '8*)
- ASCIIDOC8=YesPlease
- AC_MSG_RESULT([${asciidoc_version} > 7])
- ;;
- asciidoc' '7*)
- ASCIIDOC8=
AC_MSG_RESULT([${asciidoc_version}])
;;
*)
- ASCIIDOC8=
AC_MSG_RESULT([${asciidoc_version} (unknown)])
;;
esac
fi
-AC_SUBST(ASCIIDOC8)
## Checks for libraries.
@@ -334,13 +483,32 @@ GIT_STASH_FLAGS($OPENSSLDIR)
AC_CHECK_LIB([crypto], [SHA1_Init],
[NEEDS_SSL_WITH_CRYPTO=],
[AC_CHECK_LIB([ssl], [SHA1_Init],
- [NEEDS_SSL_WITH_CRYPTO=YesPlease],
- [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])])
+ [NEEDS_SSL_WITH_CRYPTO=YesPlease NO_OPENSSL=],
+ [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])])
GIT_UNSTASH_FLAGS($OPENSSLDIR)
-AC_SUBST(NEEDS_SSL_WITH_CRYPTO)
-AC_SUBST(NO_OPENSSL)
+GIT_CONF_SUBST([NEEDS_SSL_WITH_CRYPTO])
+GIT_CONF_SUBST([NO_OPENSSL])
+
+#
+# Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
+# able to use Perl-compatible regular expressions.
+#
+
+if test -n "$USE_LIBPCRE"; then
+
+GIT_STASH_FLAGS($LIBPCREDIR)
+
+AC_CHECK_LIB([pcre], [pcre_version],
+[USE_LIBPCRE=YesPlease],
+[USE_LIBPCRE=])
+
+GIT_UNSTASH_FLAGS($LIBPCREDIR)
+
+GIT_CONF_SUBST([USE_LIBPCRE])
+
+fi
#
# Define NO_CURL if you do not have libcurl installed. git-http-pull and
@@ -355,7 +523,7 @@ AC_CHECK_LIB([curl], [curl_global_init],
GIT_UNSTASH_FLAGS($CURLDIR)
-AC_SUBST(NO_CURL)
+GIT_CONF_SUBST([NO_CURL])
#
# Define NO_EXPAT if you do not have expat installed. git-http-push is
@@ -369,7 +537,7 @@ AC_CHECK_LIB([expat], [XML_ParserCreate],
GIT_UNSTASH_FLAGS($EXPATDIR)
-AC_SUBST(NO_EXPAT)
+GIT_CONF_SUBST([NO_EXPAT])
#
# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
@@ -380,15 +548,9 @@ if test -z "$NO_ICONV"; then
GIT_STASH_FLAGS($ICONVDIR)
-AC_DEFUN([ICONVTEST_SRC], [
-#include <iconv.h>
-
-int main(void)
-{
- iconv_open("", "");
- return 0;
-}
-])
+AC_DEFUN([ICONVTEST_SRC],
+[AC_LANG_PROGRAM([#include <iconv.h>],
+ [iconv_open("", "");])])
if test -n "$ICONVDIR"; then
lib_order="-liconv -lc"
@@ -408,7 +570,7 @@ for l in $lib_order; do
old_LIBS="$LIBS"
LIBS="$LIBS $l"
AC_MSG_CHECKING([for iconv in $l])
- AC_LINK_IFELSE(ICONVTEST_SRC,
+ AC_LINK_IFELSE([ICONVTEST_SRC],
[AC_MSG_RESULT([yes])
NO_ICONV=
break],
@@ -421,8 +583,8 @@ LIBS="$old_LIBS"
GIT_UNSTASH_FLAGS($ICONVDIR)
-AC_SUBST(NEEDS_LIBICONV)
-AC_SUBST(NO_ICONV)
+GIT_CONF_SUBST([NEEDS_LIBICONV])
+GIT_CONF_SUBST([NO_ICONV])
if test -n "$NO_ICONV"; then
NEEDS_LIBICONV=
@@ -436,18 +598,12 @@ fi
GIT_STASH_FLAGS($ZLIB_PATH)
AC_DEFUN([ZLIBTEST_SRC], [
-#include <zlib.h>
-
-int main(void)
-{
- deflateBound(0, 0);
- return 0;
-}
-])
+AC_LANG_PROGRAM([#include <zlib.h>],
+ [deflateBound(0, 0);])])
AC_MSG_CHECKING([for deflateBound in -lz])
old_LIBS="$LIBS"
LIBS="$LIBS -lz"
-AC_LINK_IFELSE(ZLIBTEST_SRC,
+AC_LINK_IFELSE([ZLIBTEST_SRC],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
NO_DEFLATE_BOUND=yes])
@@ -455,7 +611,7 @@ LIBS="$old_LIBS"
GIT_UNSTASH_FLAGS($ZLIB_PATH)
-AC_SUBST(NO_DEFLATE_BOUND)
+GIT_CONF_SUBST([NO_DEFLATE_BOUND])
#
# Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
@@ -463,25 +619,79 @@ AC_SUBST(NO_DEFLATE_BOUND)
AC_CHECK_LIB([c], [socket],
[NEEDS_SOCKET=],
[NEEDS_SOCKET=YesPlease])
-AC_SUBST(NEEDS_SOCKET)
+GIT_CONF_SUBST([NEEDS_SOCKET])
test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
#
-# Define NEEDS_RESOLV if linking with -lnsl and/or -lsocket is not enough.
-# Notably on Solaris hstrerror resides in libresolv and on Solaris 7
-# inet_ntop and inet_pton additionally reside there.
-AC_CHECK_LIB([c], [hstrerror],
-[NEEDS_RESOLV=],
-[NEEDS_RESOLV=YesPlease])
-AC_SUBST(NEEDS_RESOLV)
+# The next few tests will define NEEDS_RESOLV if linking with
+# libresolv provides some of the functions we would normally get
+# from libc.
+NEEDS_RESOLV=
+#
+# Define NO_INET_NTOP if linking with -lresolv is not enough.
+# Solaris 2.7 in particular hos inet_ntop in -lresolv.
+NO_INET_NTOP=
+AC_CHECK_FUNC([inet_ntop],
+ [],
+ [AC_CHECK_LIB([resolv], [inet_ntop],
+ [NEEDS_RESOLV=YesPlease],
+ [NO_INET_NTOP=YesPlease])
+])
+GIT_CONF_SUBST([NO_INET_NTOP])
+#
+# Define NO_INET_PTON if linking with -lresolv is not enough.
+# Solaris 2.7 in particular hos inet_pton in -lresolv.
+NO_INET_PTON=
+AC_CHECK_FUNC([inet_pton],
+ [],
+ [AC_CHECK_LIB([resolv], [inet_pton],
+ [NEEDS_RESOLV=YesPlease],
+ [NO_INET_PTON=YesPlease])
+])
+GIT_CONF_SUBST([NO_INET_PTON])
+#
+# Define NO_HSTRERROR if linking with -lresolv is not enough.
+# Solaris 2.6 in particular has no hstrerror, even in -lresolv.
+NO_HSTRERROR=
+AC_CHECK_FUNC([hstrerror],
+ [],
+ [AC_CHECK_LIB([resolv], [hstrerror],
+ [NEEDS_RESOLV=YesPlease],
+ [NO_HSTRERROR=YesPlease])
+])
+GIT_CONF_SUBST([NO_HSTRERROR])
+
+dnl This must go after all the possible places for its initialization,
+dnl in the AC_CHECK_FUNC invocations above.
+GIT_CONF_SUBST([NEEDS_RESOLV])
+#
+# If any of the above tests determined that -lresolv is needed at
+# build-time, also set it here for remaining configure-time checks.
test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv"
AC_CHECK_LIB([c], [basename],
[NEEDS_LIBGEN=],
[NEEDS_LIBGEN=YesPlease])
-AC_SUBST(NEEDS_LIBGEN)
+GIT_CONF_SUBST([NEEDS_LIBGEN])
test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen"
+AC_CHECK_LIB([c], [gettext],
+[LIBC_CONTAINS_LIBINTL=YesPlease],
+[LIBC_CONTAINS_LIBINTL=])
+GIT_CONF_SUBST([LIBC_CONTAINS_LIBINTL])
+
+#
+# Define NO_GETTEXT if you don't want Git output to be translated.
+# A translated Git requires GNU libintl or another gettext implementation
+AC_CHECK_HEADER([libintl.h],
+[NO_GETTEXT=],
+[NO_GETTEXT=YesPlease])
+GIT_CONF_SUBST([NO_GETTEXT])
+
+if test -z "$NO_GETTEXT"; then
+ test -n "$LIBC_CONTAINS_LIBINTL" || LIBS="$LIBS -lintl"
+fi
+
## Checks for header files.
AC_MSG_NOTICE([CHECKS for header files])
#
@@ -489,44 +699,80 @@ AC_MSG_NOTICE([CHECKS for header files])
AC_CHECK_HEADER([sys/select.h],
[NO_SYS_SELECT_H=],
[NO_SYS_SELECT_H=UnfortunatelyYes])
-AC_SUBST(NO_SYS_SELECT_H)
+GIT_CONF_SUBST([NO_SYS_SELECT_H])
+#
+# Define NO_SYS_POLL_H if you don't have sys/poll.h
+AC_CHECK_HEADER([sys/poll.h],
+[NO_SYS_POLL_H=],
+[NO_SYS_POLL_H=UnfortunatelyYes])
+GIT_CONF_SUBST([NO_SYS_POLL_H])
+#
+# Define NO_INTTYPES_H if you don't have inttypes.h
+AC_CHECK_HEADER([inttypes.h],
+[NO_INTTYPES_H=],
+[NO_INTTYPES_H=UnfortunatelyYes])
+GIT_CONF_SUBST([NO_INTTYPES_H])
#
# Define OLD_ICONV if your library has an old iconv(), where the second
# (input buffer pointer) parameter is declared with type (const char **).
-AC_DEFUN([OLDICONVTEST_SRC], [[
+AC_DEFUN([OLDICONVTEST_SRC], [
+AC_LANG_PROGRAM([[
#include <iconv.h>
extern size_t iconv(iconv_t cd,
char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
-
-int main(void)
-{
- return 0;
-}
-]])
+]], [])])
GIT_STASH_FLAGS($ICONVDIR)
AC_MSG_CHECKING([for old iconv()])
-AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
+AC_COMPILE_IFELSE([OLDICONVTEST_SRC],
[AC_MSG_RESULT([no])],
[AC_MSG_RESULT([yes])
OLD_ICONV=UnfortunatelyYes])
GIT_UNSTASH_FLAGS($ICONVDIR)
-AC_SUBST(OLD_ICONV)
+GIT_CONF_SUBST([OLD_ICONV])
## Checks for typedefs, structures, and compiler characteristics.
AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics])
#
+TYPE_SOCKLEN_T
+case $ac_cv_type_socklen_t in
+ yes) SOCKLEN_T='';;
+ *) SOCKLEN_T=$git_cv_socklen_t_equiv;;
+esac
+GIT_CONF_SUBST([SOCKLEN_T])
+
+#
+# Define NO_STRUCT_ITIMERVAL if you don't have struct itimerval.
+AC_CHECK_TYPES([struct itimerval],
+[NO_STRUCT_ITIMERVAL=],
+[NO_STRUCT_ITIMERVAL=UnfortunatelyYes],
+[#include <sys/time.h>])
+GIT_CONF_SUBST([NO_STRUCT_ITIMERVAL])
+#
+# Define USE_ST_TIMESPEC=YesPlease when stat.st_mtimespec.tv_nsec exists.
+# Define NO_NSEC=YesPlease when neither stat.st_mtim.tv_nsec nor
+# stat.st_mtimespec.tv_nsec exists.
+AC_CHECK_MEMBER([struct stat.st_mtimespec.tv_nsec])
+AC_CHECK_MEMBER([struct stat.st_mtim.tv_nsec])
+if test x$ac_cv_member_struct_stat_st_mtimespec_tv_nsec = xyes; then
+ USE_ST_TIMESPEC=YesPlease
+ GIT_CONF_SUBST([USE_ST_TIMESPEC])
+elif test x$ac_cv_member_struct_stat_st_mtim_tv_nsec != xyes; then
+ NO_NSEC=YesPlease
+ GIT_CONF_SUBST([NO_NSEC])
+fi
+#
# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
AC_CHECK_MEMBER(struct dirent.d_ino,
[NO_D_INO_IN_DIRENT=],
[NO_D_INO_IN_DIRENT=YesPlease],
[#include <dirent.h>])
-AC_SUBST(NO_D_INO_IN_DIRENT)
+GIT_CONF_SUBST([NO_D_INO_IN_DIRENT])
#
# Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
# d_type in struct dirent (latest Cygwin -- will be fixed soonish).
@@ -534,7 +780,15 @@ AC_CHECK_MEMBER(struct dirent.d_type,
[NO_D_TYPE_IN_DIRENT=],
[NO_D_TYPE_IN_DIRENT=YesPlease],
[#include <dirent.h>])
-AC_SUBST(NO_D_TYPE_IN_DIRENT)
+GIT_CONF_SUBST([NO_D_TYPE_IN_DIRENT])
+#
+# Define NO_GECOS_IN_PWENT if you don't have pw_gecos in struct passwd
+# in the C library.
+AC_CHECK_MEMBER(struct passwd.pw_gecos,
+[NO_GECOS_IN_PWENT=],
+[NO_GECOS_IN_PWENT=YesPlease],
+[#include <pwd.h>])
+GIT_CONF_SUBST([NO_GECOS_IN_PWENT])
#
# Define NO_SOCKADDR_STORAGE if your platform does not have struct
# sockaddr_storage.
@@ -544,7 +798,7 @@ AC_CHECK_TYPE(struct sockaddr_storage,
#include <sys/types.h>
#include <sys/socket.h>
])
-AC_SUBST(NO_SOCKADDR_STORAGE)
+GIT_CONF_SUBST([NO_SOCKADDR_STORAGE])
#
# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
AC_CHECK_TYPE([struct addrinfo],[
@@ -556,31 +810,28 @@ AC_CHECK_TYPE([struct addrinfo],[
#include <sys/socket.h>
#include <netdb.h>
])
-AC_SUBST(NO_IPV6)
-#
-# Define NO_C99_FORMAT if your formatted IO functions (printf/scanf et.al.)
-# do not support the 'size specifiers' introduced by C99, namely ll, hh,
-# j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
-# some C compilers supported these specifiers prior to C99 as an extension.
-AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
- [ac_cv_c_c99_format],
-[# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
-AC_RUN_IFELSE(
- [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
- [[char buf[64];
- if (sprintf(buf, "%lld%hhd%jd%zd%td", (long long int)1, (char)2, (intmax_t)3, (size_t)4, (ptrdiff_t)5) != 5)
- return 1;
- else if (strcmp(buf, "12345"))
- return 2;]])],
- [ac_cv_c_c99_format=yes],
- [ac_cv_c_c99_format=no])
+GIT_CONF_SUBST([NO_IPV6])
+#
+# Define NO_REGEX if you have no or inferior regex support in your C library.
+AC_CACHE_CHECK([whether the platform regex can handle null bytes],
+ [ac_cv_c_excellent_regex], [
+AC_EGREP_CPP(yippeeyeswehaveit,
+ AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+#include <regex.h>
+],
+[#ifdef REG_STARTEND
+yippeeyeswehaveit
+#endif
+]),
+ [ac_cv_c_excellent_regex=yes],
+ [ac_cv_c_excellent_regex=no])
])
-if test $ac_cv_c_c99_format = no; then
- NO_C99_FORMAT=YesPlease
+if test $ac_cv_c_excellent_regex = yes; then
+ NO_REGEX=
else
- NO_C99_FORMAT=
+ NO_REGEX=YesPlease
fi
-AC_SUBST(NO_C99_FORMAT)
+GIT_CONF_SUBST([NO_REGEX])
#
# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
# when attempting to read from an fopen'ed directory.
@@ -600,7 +851,7 @@ if test $ac_cv_fread_reads_directories = yes; then
else
FREAD_READS_DIRECTORIES=
fi
-AC_SUBST(FREAD_READS_DIRECTORIES)
+GIT_CONF_SUBST([FREAD_READS_DIRECTORIES])
#
# Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
# or vsnprintf() return -1 instead of number of characters which would
@@ -634,7 +885,30 @@ if test $ac_cv_snprintf_returns_bogus = yes; then
else
SNPRINTF_RETURNS_BOGUS=
fi
-AC_SUBST(SNPRINTF_RETURNS_BOGUS)
+GIT_CONF_SUBST([SNPRINTF_RETURNS_BOGUS])
+#
+# Define NEEDS_MODE_TRANSLATION if your OS strays from the typical file type
+# bits in mode values.
+AC_CACHE_CHECK([whether the platform uses typical file type bits],
+ [ac_cv_sane_mode_bits], [
+AC_EGREP_CPP(yippeeyeswehaveit,
+ AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
+[#if S_IFMT == 0170000 && \
+ S_IFREG == 0100000 && S_IFDIR == 0040000 && S_IFLNK == 0120000 && \
+ S_IFBLK == 0060000 && S_IFCHR == 0020000 && \
+ S_IFIFO == 0010000 && S_IFSOCK == 0140000
+yippeeyeswehaveit
+#endif
+]),
+ [ac_cv_sane_mode_bits=yes],
+ [ac_cv_sane_mode_bits=no])
+])
+if test $ac_cv_sane_mode_bits = yes; then
+ NEEDS_MODE_TRANSLATION=
+else
+ NEEDS_MODE_TRANSLATION=UnfortunatelyYes
+fi
+GIT_CONF_SUBST([NEEDS_MODE_TRANSLATION])
## Checks for library functions.
@@ -645,25 +919,83 @@ AC_MSG_NOTICE([CHECKS for library functions])
AC_CHECK_HEADER([libgen.h],
[NO_LIBGEN_H=],
[NO_LIBGEN_H=YesPlease])
-AC_SUBST(NO_LIBGEN_H)
+GIT_CONF_SUBST([NO_LIBGEN_H])
+#
+# Define HAVE_PATHS_H if you have paths.h.
+AC_CHECK_HEADER([paths.h],
+[HAVE_PATHS_H=YesPlease],
+[HAVE_PATHS_H=])
+GIT_CONF_SUBST([HAVE_PATHS_H])
+#
+# Define HAVE_LIBCHARSET_H if have libcharset.h
+AC_CHECK_HEADER([libcharset.h],
+[HAVE_LIBCHARSET_H=YesPlease],
+[HAVE_LIBCHARSET_H=])
+GIT_CONF_SUBST([HAVE_LIBCHARSET_H])
+#
+# Define HAVE_STRINGS_H if you have strings.h
+AC_CHECK_HEADER([strings.h],
+[HAVE_STRINGS_H=YesPlease],
+[HAVE_STRINGS_H=])
+GIT_CONF_SUBST([HAVE_STRINGS_H])
+# Define CHARSET_LIB if libiconv does not export the locale_charset symbol
+# and libcharset does
+CHARSET_LIB=
+AC_CHECK_LIB([iconv], [locale_charset],
+ [CHARSET_LIB=-liconv],
+ [AC_CHECK_LIB([charset], [locale_charset],
+ [CHARSET_LIB=-lcharset])])
+GIT_CONF_SUBST([CHARSET_LIB])
+#
+# Define NO_HMAC_CTX_CLEANUP=YesPlease if HMAC_CTX_cleanup is missing.
+AC_CHECK_LIB([crypto], [HMAC_CTX_cleanup],
+ [], [GIT_CONF_SUBST([NO_HMAC_CTX_CLEANUP], [YesPlease])])
+#
+# Define HAVE_CLOCK_GETTIME=YesPlease if clock_gettime is available.
+GIT_CHECK_FUNC(clock_gettime,
+ [HAVE_CLOCK_GETTIME=YesPlease],
+ [HAVE_CLOCK_GETTIME=])
+GIT_CONF_SUBST([HAVE_CLOCK_GETTIME])
+
+AC_DEFUN([CLOCK_MONOTONIC_SRC], [
+AC_LANG_PROGRAM([[
+#include <time.h>
+clockid_t id = CLOCK_MONOTONIC;
+]])])
+
+#
+# Define HAVE_CLOCK_MONOTONIC=YesPlease if CLOCK_MONOTONIC is available.
+AC_MSG_CHECKING([for CLOCK_MONOTONIC])
+AC_COMPILE_IFELSE([CLOCK_MONOTONIC_SRC],
+ [AC_MSG_RESULT([yes])
+ HAVE_CLOCK_MONOTONIC=YesPlease],
+ [AC_MSG_RESULT([no])
+ HAVE_CLOCK_MONOTONIC=])
+GIT_CONF_SUBST([HAVE_CLOCK_MONOTONIC])
+#
+# Define NO_SETITIMER if you don't have setitimer.
+GIT_CHECK_FUNC(setitimer,
+[NO_SETITIMER=],
+[NO_SETITIMER=YesPlease])
+GIT_CONF_SUBST([NO_SETITIMER])
#
# Define NO_STRCASESTR if you don't have strcasestr.
GIT_CHECK_FUNC(strcasestr,
[NO_STRCASESTR=],
[NO_STRCASESTR=YesPlease])
-AC_SUBST(NO_STRCASESTR)
+GIT_CONF_SUBST([NO_STRCASESTR])
#
# Define NO_MEMMEM if you don't have memmem.
GIT_CHECK_FUNC(memmem,
[NO_MEMMEM=],
[NO_MEMMEM=YesPlease])
-AC_SUBST(NO_MEMMEM)
+GIT_CONF_SUBST([NO_MEMMEM])
#
# Define NO_STRLCPY if you don't have strlcpy.
GIT_CHECK_FUNC(strlcpy,
[NO_STRLCPY=],
[NO_STRLCPY=YesPlease])
-AC_SUBST(NO_STRLCPY)
+GIT_CONF_SUBST([NO_STRLCPY])
#
# Define NO_UINTMAX_T if your platform does not have uintmax_t
AC_CHECK_TYPE(uintmax_t,
@@ -671,43 +1003,72 @@ AC_CHECK_TYPE(uintmax_t,
[NO_UINTMAX_T=YesPlease],[
#include <inttypes.h>
])
-AC_SUBST(NO_UINTMAX_T)
+GIT_CONF_SUBST([NO_UINTMAX_T])
#
# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
GIT_CHECK_FUNC(strtoumax,
[NO_STRTOUMAX=],
[NO_STRTOUMAX=YesPlease])
-AC_SUBST(NO_STRTOUMAX)
+GIT_CONF_SUBST([NO_STRTOUMAX])
#
# Define NO_SETENV if you don't have setenv in the C library.
GIT_CHECK_FUNC(setenv,
[NO_SETENV=],
[NO_SETENV=YesPlease])
-AC_SUBST(NO_SETENV)
+GIT_CONF_SUBST([NO_SETENV])
#
# Define NO_UNSETENV if you don't have unsetenv in the C library.
GIT_CHECK_FUNC(unsetenv,
[NO_UNSETENV=],
[NO_UNSETENV=YesPlease])
-AC_SUBST(NO_UNSETENV)
+GIT_CONF_SUBST([NO_UNSETENV])
#
# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
GIT_CHECK_FUNC(mkdtemp,
[NO_MKDTEMP=],
[NO_MKDTEMP=YesPlease])
-AC_SUBST(NO_MKDTEMP)
+GIT_CONF_SUBST([NO_MKDTEMP])
#
# Define NO_MKSTEMPS if you don't have mkstemps in the C library.
GIT_CHECK_FUNC(mkstemps,
[NO_MKSTEMPS=],
[NO_MKSTEMPS=YesPlease])
-AC_SUBST(NO_MKSTEMPS)
+GIT_CONF_SUBST([NO_MKSTEMPS])
+#
+# Define NO_INITGROUPS if you don't have initgroups in the C library.
+GIT_CHECK_FUNC(initgroups,
+[NO_INITGROUPS=],
+[NO_INITGROUPS=YesPlease])
+GIT_CONF_SUBST([NO_INITGROUPS])
#
#
# Define NO_MMAP if you want to avoid mmap.
#
# Define NO_ICONV if your libc does not properly support iconv.
+AC_DEFUN([BSD_SYSCTL_SRC], [
+AC_LANG_PROGRAM([[
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+]],[[
+int val, mib[2];
+size_t len;
+mib[0] = CTL_HW;
+mib[1] = 1;
+len = sizeof(val);
+return sysctl(mib, 2, &val, &len, NULL, 0) ? 1 : 0;
+]])])
+
+#
+# Define HAVE_BSD_SYSCTL=YesPlease if a BSD-compatible sysctl function is available.
+AC_MSG_CHECKING([for BSD sysctl])
+AC_COMPILE_IFELSE([BSD_SYSCTL_SRC],
+ [AC_MSG_RESULT([yes])
+ HAVE_BSD_SYSCTL=YesPlease],
+ [AC_MSG_RESULT([no])
+ HAVE_BSD_SYSCTL=])
+GIT_CONF_SUBST([HAVE_BSD_SYSCTL])
## Other checks.
# Define USE_PIC if you need the main git objects to be built with -fPIC
@@ -716,19 +1077,22 @@ AC_SUBST(NO_MKSTEMPS)
# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
# Enable it on Windows. By default, symrefs are still used.
#
-# Define NO_PTHREADS if we do not have pthreads
+# Define NO_PTHREADS if we do not have pthreads.
#
-# Define PTHREAD_LIBS to the linker flag used for Pthread support and define
-# THREADED_DELTA_SEARCH if Pthreads are available.
+# Define PTHREAD_LIBS to the linker flag used for Pthread support.
AC_DEFUN([PTHREADTEST_SRC], [
+AC_LANG_PROGRAM([[
#include <pthread.h>
-
-int main(void)
-{
+]], [[
pthread_mutex_t test_mutex;
- return (0);
-}
-])
+ pthread_key_t test_key;
+ int retcode = 0;
+ retcode |= pthread_key_create(&test_key, (void *)0);
+ retcode |= pthread_mutex_init(&test_mutex,(void *)0);
+ retcode |= pthread_mutex_lock(&test_mutex);
+ retcode |= pthread_mutex_unlock(&test_mutex);
+ return retcode;
+]])])
dnl AC_LANG_CONFTEST([AC_LANG_PROGRAM(
dnl [[#include <pthread.h>]],
@@ -736,7 +1100,6 @@ dnl [[pthread_mutex_t test_mutex;]]
dnl )])
NO_PTHREADS=UnfortunatelyYes
-THREADED_DELTA_SEARCH=
PTHREAD_LIBS=
if test -n "$USER_NOPTHREAD"; then
@@ -744,29 +1107,45 @@ if test -n "$USER_NOPTHREAD"; then
# handle these separately since PTHREAD_CFLAGS could be '-lpthreads
# -D_REENTRANT' or some such.
elif test -z "$PTHREAD_CFLAGS"; then
- for opt in -pthread -lpthread; do
+ threads_found=no
+ # Attempt to compile and link some code using pthreads to determine
+ # required linker flags. The order is somewhat important here: We
+ # first try it without any extra flags, to catch systems where
+ # pthreads are part of the C library, then go on testing various other
+ # flags. We do so to avoid false positives. For example, on Mac OS X
+ # pthreads are part of the C library; moreover, the compiler allows us
+ # to add "-mt" to the CFLAGS (although it will do nothing except
+ # trigger a warning about an unused flag). Hence if we checked for
+ # "-mt" before "" we would end up picking it. But unfortunately this
+ # would then trigger compiler warnings on every single file we compile.
+ for opt in "" -mt -pthread -lpthread; do
old_CFLAGS="$CFLAGS"
CFLAGS="$opt $CFLAGS"
- AC_MSG_CHECKING([Checking for POSIX Threads with '$opt'])
- AC_LINK_IFELSE(PTHREADTEST_SRC,
+ AC_MSG_CHECKING([for POSIX Threads with '$opt'])
+ AC_LINK_IFELSE([PTHREADTEST_SRC],
[AC_MSG_RESULT([yes])
NO_PTHREADS=
PTHREAD_LIBS="$opt"
- THREADED_DELTA_SEARCH=YesPlease
+ PTHREAD_CFLAGS="$opt"
+ threads_found=yes
break
],
[AC_MSG_RESULT([no])])
CFLAGS="$old_CFLAGS"
done
+ if test $threads_found != yes; then
+ AC_CHECK_LIB([pthread], [pthread_create],
+ [PTHREAD_LIBS="-lpthread"],
+ [NO_PTHREADS=UnfortunatelyYes])
+ fi
else
old_CFLAGS="$CFLAGS"
CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
- AC_MSG_CHECKING([Checking for POSIX Threads with '$PTHREAD_CFLAGS'])
- AC_LINK_IFELSE(PTHREADTEST_SRC,
+ AC_MSG_CHECKING([for POSIX Threads with '$PTHREAD_CFLAGS'])
+ AC_LINK_IFELSE([PTHREADTEST_SRC],
[AC_MSG_RESULT([yes])
NO_PTHREADS=
PTHREAD_LIBS="$PTHREAD_CFLAGS"
- THREADED_DELTA_SEARCH=YesPlease
],
[AC_MSG_RESULT([no])])
@@ -775,14 +1154,10 @@ fi
CFLAGS="$old_CFLAGS"
-AC_SUBST(PTHREAD_LIBS)
-AC_SUBST(NO_PTHREADS)
-AC_SUBST(THREADED_DELTA_SEARCH)
+GIT_CONF_SUBST([PTHREAD_CFLAGS])
+GIT_CONF_SUBST([PTHREAD_LIBS])
+GIT_CONF_SUBST([NO_PTHREADS])
## Output files
-AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
+AC_CONFIG_FILES(["${config_file}":"${config_in}"])
AC_OUTPUT
-
-
-## Cleanup
-rm -f "${config_append}"