# -*- 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 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,$2)],[]) ])# GIT_ARG_SET_PATH # # 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 \ if test -n "$2"; then \ m4_toupper($1)_PATH=$withval; \ AC_MSG_NOTICE([Disabling use of ${PROGRAM}]); \ GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease); \ GIT_CONF_APPEND_LINE(${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 \ 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 # # GIT_PARSE_WITH(PACKAGE) # ----------------------- # For use in AC_ARG_WITH action-if-found, for packages default ON. # * Set NO_PACKAGE=YesPlease for --without-PACKAGE # * 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 # # 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_APPEND_LINE($2=$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. 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. AC_DEFUN([GIT_STASH_FLAGS],[ if test -n "$1"; then old_CPPFLAGS="$CPPFLAGS" old_LDFLAGS="$LDFLAGS" CPPFLAGS="-I$1/include $CPPFLAGS" LDFLAGS="-L$1/$lib $LDFLAGS" fi ]) dnl dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR) dnl ----------------------------- dnl Restore the stashed *FLAGS values. AC_DEFUN([GIT_UNSTASH_FLAGS],[ if test -n "$1"; then CPPFLAGS="$old_CPPFLAGS" LDFLAGS="$old_LDFLAGS" fi ]) ## Site configuration related to programs (before tests) ## --with-PACKAGE[=ARG] and --without-PACKAGE # # Set lib to alternative name of lib directory (e.g. lib64) AC_ARG_WITH([lib], [AS_HELP_STRING([--with-lib=ARG], [ARG specifies alternative name for lib directory])], [if test "$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 -z "$lib"; then AC_MSG_NOTICE([Setting lib to 'lib' (the default)]) lib=lib fi AC_ARG_ENABLE([pthreads], [AS_HELP_STRING([--enable-pthreads=FLAGS], [FLAGS is the value to pass to the compiler to enable POSIX Threads.] [The default if FLAGS is not specified is to try first -pthread] [and then -lpthread.] [--without-pthreads will disable threading.])], [ if test "x$enableval" = "xyes"; then AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads]) elif test "x$enableval" != "xno"; then PTHREAD_CFLAGS=$enableval AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads]) else AC_MSG_NOTICE([POSIX Threads will be disabled.]) NO_PTHREADS=YesPlease USER_NOPTHREAD=1 fi], [ AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.]) ]) # Define option to enable JavaScript minification AC_ARG_ENABLE([jsmin], [AS_HELP_STRING([--enable-jsmin=PATH], [PATH is the name of a JavaScript minifier or the absolute path to one.])], [ JSMIN=$enableval; AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying]) GIT_CONF_APPEND_LINE(JSMIN=$enableval); ]) # 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_APPEND_LINE(CSSMIN=$enableval); ]) ## Site configuration (override autodetection) ## --with-PACKAGE[=ARG] and --without-PACKAGE AC_MSG_NOTICE([CHECKS for site configuration]) # # Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability # tests. These tests take up a significant amount of the total test time # but are not needed unless you plan to talk to SVN repos. # # Define PPC_SHA1 environment variable when running make to make use of # a bundled SHA1 routine optimized for PowerPC. # # Define NO_OPENSSL environment variable if you do not have OpenSSL. # This also implies BLK_SHA1. # # Define OPENSSLDIR=/foo/bar if your openssl header and library files are in # /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)) # # 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:// # transports. # # Define CURLDIR=/foo/bar if your curl header and library files are in # /foo/bar/include and /foo/bar/lib directories. AC_ARG_WITH(curl, AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)]) AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]), GIT_PARSE_WITH(curl)) # # Define NO_EXPAT if you do not have expat installed. git-http-push is # not built, and you cannot push using http:// and https:// transports. # # Define EXPATDIR=/foo/bar if your expat header and library files are in # /foo/bar/include and /foo/bar/lib directories. AC_ARG_WITH(expat, AS_HELP_STRING([--with-expat], [support git-push using http:// and https:// transports via WebDAV (default is YES)]) AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]), GIT_PARSE_WITH(expat)) # # Define NO_FINK if you are building on Darwin/Mac OS X, have Fink # installed in /sw, but don't want GIT to link against any libraries # installed there. If defined you may specify your own (or Fink's) # include directories and library directories by defining CFLAGS # and LDFLAGS appropriately. # # Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X, # have DarwinPorts installed in /opt/local, but don't want GIT to # link against any libraries installed there. If defined you may # specify your own (or DarwinPort's) include directories and # library directories by defining CFLAGS and LDFLAGS appropriately. # # Define NO_MMAP if you want to avoid mmap. # # Define NO_ICONV if your libc does not properly support iconv. AC_ARG_WITH(iconv, AS_HELP_STRING([--without-iconv], [if your architecture doesn't properly support iconv]) AS_HELP_STRING([--with-iconv=PATH], [PATH is prefix for libiconv library and headers]) AS_HELP_STRING([], [used only if you need linking with libiconv]), GIT_PARSE_WITH(iconv)) ## --enable-FEATURE[=ARG] and --disable-FEATURE # # Define USE_NSEC below if you want git to care about sub-second file mtimes # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely # randomly break unless your underlying filesystem supports those sub-second # times (my ext3 doesn't). # # Define USE_STDEV below if you want git to care about the underlying device # 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) # # Declare the with-tcltk/without-tcltk options. 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.]),\ GIT_PARSE_WITH(tcltk)) # ## Checks for programs. AC_MSG_NOTICE([CHECKS for programs]) # AC_PROG_CC([cc gcc]) AC_C_INLINE case $ac_cv_c_inline in inline | yes | no) ;; *) AC_SUBST([INLINE], [$ac_cv_c_inline]) ;; esac # 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]) LDFLAGS="${SAVE_LDFLAGS}" ]) if test "$git_cv_ld_dashr" = "yes"; then AC_SUBST(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]) LDFLAGS="${SAVE_LDFLAGS}" ]) if test "$git_cv_ld_wl_rpath" = "yes"; then AC_SUBST(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]) LDFLAGS="${SAVE_LDFLAGS}" ]) if test "$git_cv_ld_rpath" = "yes"; then AC_SUBST(CC_LD_DYNPATH, [-rpath]) else AC_MSG_WARN([linker does not support runtime path to dynamic libraries]) fi fi fi #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 "$NO_TCLTK"; then if test "$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 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. AC_MSG_NOTICE([CHECKS for libraries]) # # Define NO_OPENSSL environment variable if you do not have OpenSSL. # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). GIT_STASH_FLAGS($OPENSSLDIR) AC_CHECK_LIB([crypto], [SHA1_Init], [NEEDS_SSL_WITH_CRYPTO=], [AC_CHECK_LIB([ssl], [SHA1_Init], [NEEDS_SSL_WITH_CRYPTO=YesPlease], [NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])]) GIT_UNSTASH_FLAGS($OPENSSLDIR) AC_SUBST(NEEDS_SSL_WITH_CRYPTO) AC_SUBST(NO_OPENSSL) # # Define NO_CURL if you do not have libcurl installed. git-http-pull and # git-http-push are not built, and you cannot use http:// and https:// # transports. GIT_STASH_FLAGS($CURLDIR) AC_CHECK_LIB([curl], [curl_global_init], [NO_CURL=], [NO_CURL=YesPlease]) GIT_UNSTASH_FLAGS($CURLDIR) AC_SUBST(NO_CURL) # # Define NO_EXPAT if you do not have expat installed. git-http-push is # not built, and you cannot push using http:// and https:// transports. GIT_STASH_FLAGS($EXPATDIR) AC_CHECK_LIB([expat], [XML_ParserCreate], [NO_EXPAT=], [NO_EXPAT=YesPlease]) GIT_UNSTASH_FLAGS($EXPATDIR) AC_SUBST(NO_EXPAT) # # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and # some Solaris installations). # Define NO_ICONV if neither libc nor libiconv support iconv. if test -z "$NO_ICONV"; then GIT_STASH_FLAGS($ICONVDIR) AC_DEFUN([ICONVTEST_SRC], [ #include <iconv.h> int main(void) { iconv_open("", ""); return 0; } ]) if test -n "$ICONVDIR"; then lib_order="-liconv -lc" else lib_order="-lc -liconv" fi NO_ICONV=YesPlease for l in $lib_order; do if test "$l" = "-liconv"; then NEEDS_LIBICONV=YesPlease else NEEDS_LIBICONV= fi old_LIBS="$LIBS" LIBS="$LIBS $l" AC_MSG_CHECKING([for iconv in $l]) AC_LINK_IFELSE(ICONVTEST_SRC, [AC_MSG_RESULT([yes]) NO_ICONV= break], [AC_MSG_RESULT([no])]) LIBS="$old_LIBS" done #in case of break LIBS="$old_LIBS" GIT_UNSTASH_FLAGS($ICONVDIR) AC_SUBST(NEEDS_LIBICONV) AC_SUBST(NO_ICONV) if test -n "$NO_ICONV"; then NEEDS_LIBICONV= fi fi # # Define NO_DEFLATE_BOUND if deflateBound is missing from zlib. GIT_STASH_FLAGS($ZLIB_PATH) AC_DEFUN([ZLIBTEST_SRC], [ #include <zlib.h> int main(void) { deflateBound(0, 0); return 0; } ]) AC_MSG_CHECKING([for deflateBound in -lz]) old_LIBS="$LIBS" LIBS="$LIBS -lz" AC_LINK_IFELSE(ZLIBTEST_SRC, [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]) NO_DEFLATE_BOUND=yes]) LIBS="$old_LIBS" GIT_UNSTASH_FLAGS($ZLIB_PATH) AC_SUBST(NO_DEFLATE_BOUND) # # Define NEEDS_SOCKET if linking with libc is not enough (SunOS, # Patrick Mauritz). AC_CHECK_LIB([c], [socket], [NEEDS_SOCKET=], [NEEDS_SOCKET=YesPlease]) AC_SUBST(NEEDS_SOCKET) test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket" # # 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= AC_SUBST(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_SUBST(NO_INET_NTOP) AC_CHECK_FUNC([inet_ntop], [], [AC_CHECK_LIB([resolv], [inet_ntop], [NEEDS_RESOLV=YesPlease], [NO_INET_NTOP=YesPlease]) ]) # # 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_SUBST(NO_INET_PTON) AC_CHECK_FUNC([inet_pton], [], [AC_CHECK_LIB([resolv], [inet_pton], [NEEDS_RESOLV=YesPlease], [NO_INET_PTON=YesPlease]) ]) # # 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]) ]) AC_SUBST(NO_HSTRERROR) # # 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) test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen" ## Checks for header files. AC_MSG_NOTICE([CHECKS for header files]) # # Define NO_SYS_SELECT_H if you don't have sys/select.h. AC_CHECK_HEADER([sys/select.h], [NO_SYS_SELECT_H=], [NO_SYS_SELECT_H=UnfortunatelyYes]) AC_SUBST(NO_SYS_SELECT_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], [[ #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($ICONVDIR) AC_MSG_CHECKING([for old iconv()]) AC_COMPILE_IFELSE(OLDICONVTEST_SRC, [AC_MSG_RESULT([no])], [AC_MSG_RESULT([yes]) OLD_ICONV=UnfortunatelyYes]) GIT_UNSTASH_FLAGS($ICONVDIR) AC_SUBST(OLD_ICONV) ## Checks for typedefs, structures, and compiler characteristics. AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) # TYPE_SOCKLEN_T case $ac_cv_type_socklen_t in yes) ;; *) AC_SUBST([SOCKLEN_T], [$git_cv_socklen_t_equiv]) ;; esac # 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) # # 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). 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) # # Define NO_SOCKADDR_STORAGE if your platform does not have struct # sockaddr_storage. AC_CHECK_TYPE(struct sockaddr_storage, [NO_SOCKADDR_STORAGE=], [NO_SOCKADDR_STORAGE=YesPlease],[ #include <sys/types.h> #include <sys/socket.h> ]) AC_SUBST(NO_SOCKADDR_STORAGE) # # Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). AC_CHECK_TYPE([struct addrinfo],[ GIT_CHECK_FUNC([getaddrinfo], [NO_IPV6=], [NO_IPV6=YesPlease]) ],[NO_IPV6=YesPlease],[ #include <sys/types.h> #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]) ]) if test $ac_cv_c_c99_format = no; then NO_C99_FORMAT=YesPlease else NO_C99_FORMAT= fi AC_SUBST(NO_C99_FORMAT) # # 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_excellent_regex = yes; then NO_REGEX= else NO_REGEX=YesPlease fi AC_SUBST(NO_REGEX) # # Define FREAD_READS_DIRECTORIES if your are on a system which succeeds # when attempting to read from an fopen'ed directory. AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], [ac_cv_fread_reads_directories], [ AC_RUN_IFELSE( [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[char c; FILE *f = fopen(".", "r"); return f && fread(&c, 1, 1, f)]])], [ac_cv_fread_reads_directories=no], [ac_cv_fread_reads_directories=yes]) ]) if test $ac_cv_fread_reads_directories = yes; then FREAD_READS_DIRECTORIES=UnfortunatelyYes else FREAD_READS_DIRECTORIES= fi AC_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 # have been written to the final string if enough space had been available. AC_CACHE_CHECK([whether snprintf() and/or vsnprintf() return bogus value], [ac_cv_snprintf_returns_bogus], [ AC_RUN_IFELSE( [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT #include "stdarg.h" int test_vsnprintf(char *str, size_t maxsize, const char *format, ...) { int ret; va_list ap; va_start(ap, format); ret = vsnprintf(str, maxsize, format, ap); va_end(ap); return ret; }], [[char buf[6]; if (test_vsnprintf(buf, 3, "%s", "12345") != 5 || strcmp(buf, "12")) return 1; if (snprintf(buf, 3, "%s", "12345") != 5 || strcmp(buf, "12")) return 1]])], [ac_cv_snprintf_returns_bogus=no], [ac_cv_snprintf_returns_bogus=yes]) ]) if test $ac_cv_snprintf_returns_bogus = yes; then SNPRINTF_RETURNS_BOGUS=UnfortunatelyYes else SNPRINTF_RETURNS_BOGUS= fi AC_SUBST(SNPRINTF_RETURNS_BOGUS) ## Checks for library functions. ## (in default C library and libraries checked by AC_CHECK_LIB) AC_MSG_NOTICE([CHECKS for library functions]) # # Define NO_LIBGEN_H if you don't have libgen.h. AC_CHECK_HEADER([libgen.h], [NO_LIBGEN_H=], [NO_LIBGEN_H=YesPlease]) AC_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=]) AC_SUBST(HAVE_PATHS_H) # # Define NO_STRCASESTR if you don't have strcasestr. GIT_CHECK_FUNC(strcasestr, [NO_STRCASESTR=], [NO_STRCASESTR=YesPlease]) AC_SUBST(NO_STRCASESTR) # # Define NO_STRTOK_R if you don't have strtok_r GIT_CHECK_FUNC(strtok_r, [NO_STRTOK_R=], [NO_STRTOK_R=YesPlease]) AC_SUBST(NO_STRTOK_R) # # Define NO_MEMMEM if you don't have memmem. GIT_CHECK_FUNC(memmem, [NO_MEMMEM=], [NO_MEMMEM=YesPlease]) AC_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) # # Define NO_UINTMAX_T if your platform does not have uintmax_t AC_CHECK_TYPE(uintmax_t, [NO_UINTMAX_T=], [NO_UINTMAX_T=YesPlease],[ #include <inttypes.h> ]) AC_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) # # 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) # # 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) # # 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) # # 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) # # # Define NO_MMAP if you want to avoid mmap. # # Define NO_ICONV if your libc does not properly support iconv. ## Other checks. # Define USE_PIC if you need the main git objects to be built with -fPIC # in order to build and link perl/Git.so. x86-64 seems to need this. # # 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 PTHREAD_LIBS to the linker flag used for Pthread support. AC_DEFUN([PTHREADTEST_SRC], [ #include <pthread.h> int main(void) { pthread_mutex_t test_mutex; int retcode = 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>]], dnl [[pthread_mutex_t test_mutex;]] dnl )]) NO_PTHREADS=UnfortunatelyYes PTHREAD_LIBS= if test -n "$USER_NOPTHREAD"; then AC_MSG_NOTICE([Skipping POSIX Threads at user request.]) # handle these separately since PTHREAD_CFLAGS could be '-lpthreads # -D_REENTRANT' or some such. elif test -z "$PTHREAD_CFLAGS"; then threads_found=no for opt in -mt -pthread -lpthread; do old_CFLAGS="$CFLAGS" CFLAGS="$opt $CFLAGS" AC_MSG_CHECKING([Checking for POSIX Threads with '$opt']) AC_LINK_IFELSE(PTHREADTEST_SRC, [AC_MSG_RESULT([yes]) NO_PTHREADS= PTHREAD_LIBS="$opt" PTHREAD_CFLAGS="$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_RESULT([yes]) NO_PTHREADS= PTHREAD_LIBS="$PTHREAD_CFLAGS" ], [AC_MSG_RESULT([no])]) CFLAGS="$old_CFLAGS" fi CFLAGS="$old_CFLAGS" AC_SUBST(PTHREAD_CFLAGS) AC_SUBST(PTHREAD_LIBS) AC_SUBST(NO_PTHREADS) ## Output files AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"]) AC_OUTPUT ## Cleanup rm -f "${config_append}"