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![Ævar Arnfjörð Bjarmason](/assets/img/avatar_default.png)
We have a copy of uncompress2() implementation in compat/ so that we can build with an older version of zlib that lack the function, and the build procedure selects if it is used via the NO_UNCOMPRESS2 $(MAKE) variable. This is yet another "annoying" knob the porters need to tweak on platforms that are not common enough to have the default set in the config.mak.uname file. Attempt to instead ask the system header <zlib.h> to decide if we need the compatibility implementation. This is a deviation from the way we have been handling the "compatiblity" features so far, and if it can be done cleanly enough, it could work as a model for features that need compatibility definition we discover in the future. With that goal in mind, avoid expedient but ugly hacks, like shoving the code that is conditionally compiled into an unrelated .c file, which may not work in future cases---instead, take an approach that uses a file that is independently compiled and stands on its own. Compile and link compat/zlib-uncompress2.c file unconditionally, but conditionally hide the implementation behind #if/#endif when zlib version is 1.2.9 or newer, and unconditionally archive the resulting object file in the libgit.a to be picked up by the linker. There are a few things to note in the shape of the code base after this change: - We no longer use NO_UNCOMPRESS2 knob; if the system header <zlib.h> claims a version that is more cent than the library actually is, this would break, but it is easy to add it back when we find such a system. - The object file compat/zlib-uncompress2.o is always compiled and archived in libgit.a, just like a few other compat/ object files already are. - The inclusion of <zlib.h> is done in <git-compat-util.h>; we used to do so from <cache.h> which includes <git-compat-util.h> as the first thing it does, so from the *.c codes, there is no practical change. - Until objects in libgit.a that is already used gains a reference to the function, the reftable code will be the only one that wants it, so libgit.a on the linker command line needs to appear once more at the end to satisify the mutual dependency. - Beat found a trick used by OpenSSL to avoid making the conditionally-compiled object truly empty (apparently because they had to deal with compilers that do not want to see an effectively empty input file). Our compat/zlib-uncompress2.c file borrows the same trick for portabilty. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Helped-by: Beat Bolli <dev+git@drbeat.li> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1285 lines
37 KiB
Plaintext
1285 lines
37 KiB
Plaintext
# -*- Autoconf -*-
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# Process this file with autoconf to produce a configure script.
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## Definitions of private macros.
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# GIT_CONF_SUBST(VAL, VAR)
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# ------------------------
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# Cause the line "VAR=VAL" to be eventually appended to ${config_file}.
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AC_DEFUN([GIT_CONF_SUBST],
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[AC_REQUIRE([GIT_CONF_SUBST_INIT])
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config_appended_defs="$config_appended_defs${newline}dnl
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$1=m4_if([$#],[1],[${$1}],[$2])"])
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# GIT_CONF_SUBST_INIT
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# -------------------
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# Prepare shell variables and autoconf machine required by later calls
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# to GIT_CONF_SUBST.
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AC_DEFUN([GIT_CONF_SUBST_INIT],
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[config_appended_defs=; newline='
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'
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AC_CONFIG_COMMANDS([$config_file],
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[echo "$config_appended_defs" >> "$config_file"],
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[config_file=$config_file
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config_appended_defs="$config_appended_defs"])])
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# GIT_ARG_SET_PATH(PROGRAM)
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# -------------------------
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# Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
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# Optional second argument allows setting NO_PROGRAM=YesPlease if
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# --without-PROGRAM version used.
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AC_DEFUN([GIT_ARG_SET_PATH],
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[AC_ARG_WITH([$1],
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[AS_HELP_STRING([--with-$1=PATH],
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[provide PATH to $1])],
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[GIT_CONF_APPEND_PATH([$1], [$2])],
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[])])
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# GIT_CONF_APPEND_PATH(PROGRAM)
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# -----------------------------
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# Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
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# Used by GIT_ARG_SET_PATH(PROGRAM)
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# Optional second argument allows setting NO_PROGRAM=YesPlease if
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# --without-PROGRAM is used.
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AC_DEFUN([GIT_CONF_APPEND_PATH],
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[m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl
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if test "$withval" = "no"; then
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if test -n "$2"; then
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GIT_UC_PROGRAM[]_PATH=$withval
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AC_MSG_NOTICE([Disabling use of GIT_UC_PROGRAM])
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GIT_CONF_SUBST([NO_]GIT_UC_PROGRAM, [YesPlease])
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GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, [])
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else
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AC_MSG_ERROR([You cannot use git without $1])
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fi
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else
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if test "$withval" = "yes"; then
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AC_MSG_WARN([You should provide path for --with-$1=PATH])
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else
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GIT_UC_PROGRAM[]_PATH=$withval
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AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval])
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GIT_CONF_SUBST(GIT_UC_PROGRAM[]_PATH, [$withval])
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fi
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fi
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m4_popdef([GIT_UC_PROGRAM])])
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# GIT_PARSE_WITH(PACKAGE)
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# -----------------------
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# For use in AC_ARG_WITH action-if-found, for packages default ON.
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# * Set NO_PACKAGE=YesPlease for --without-PACKAGE
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# * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
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# * Unset NO_PACKAGE for --with-PACKAGE without ARG
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AC_DEFUN([GIT_PARSE_WITH],
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[m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl
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if test "$withval" = "no"; then
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NO_[]GIT_UC_PACKAGE=YesPlease
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elif test "$withval" = "yes"; then
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NO_[]GIT_UC_PACKAGE=
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else
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NO_[]GIT_UC_PACKAGE=
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GIT_UC_PACKAGE[]DIR=$withval
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AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval])
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GIT_CONF_SUBST(GIT_UC_PACKAGE[DIR], [$withval])
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fi
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m4_popdef([GIT_UC_PACKAGE])])
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# GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT)
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# -----------------------------------------------------
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# Set VAR to the value specified by --with-WITHNAME.
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# No verification of arguments is performed, but warnings are issued
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# if either 'yes' or 'no' is specified.
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# HELP_TEXT is presented when --help is called.
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# This is a direct way to allow setting variables in the Makefile.
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AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR],
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[AC_ARG_WITH([$1],
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[AS_HELP_STRING([--with-$1=VALUE], $3)],
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if test -n "$withval"; then
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if test "$withval" = "yes" -o "$withval" = "no"; then
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AC_MSG_WARN([You likely do not want either 'yes' or 'no' as]
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[a value for $1 ($2). Maybe you do...?])
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fi
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AC_MSG_NOTICE([Setting $2 to $withval])
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GIT_CONF_SUBST([$2], [$withval])
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fi)])# GIT_PARSE_WITH_SET_MAKE_VAR
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#
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# GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
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# -----------------------------------------
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# Similar to AC_CHECK_FUNC, but on systems that do not generate
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# warnings for missing prototypes (e.g. FreeBSD when compiling without
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# -Wall), it does not work. By looking for function definition in
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# libraries, this problem can be worked around.
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AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
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AC_SEARCH_LIBS([$1],,
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[$2],[$3])
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],[$3])])
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#
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# GIT_STASH_FLAGS(BASEPATH_VAR)
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# -----------------------------
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# Allow for easy stashing of LDFLAGS and CPPFLAGS before running
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# tests that may want to take user settings into account.
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AC_DEFUN([GIT_STASH_FLAGS],[
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if test -n "$1"; then
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old_CPPFLAGS="$CPPFLAGS"
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old_LDFLAGS="$LDFLAGS"
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CPPFLAGS="-I$1/include $CPPFLAGS"
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LDFLAGS="-L$1/$lib $LDFLAGS"
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fi
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])
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dnl
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dnl GIT_UNSTASH_FLAGS(BASEPATH_VAR)
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dnl -----------------------------
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dnl Restore the stashed *FLAGS values.
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AC_DEFUN([GIT_UNSTASH_FLAGS],[
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if test -n "$1"; then
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CPPFLAGS="$old_CPPFLAGS"
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LDFLAGS="$old_LDFLAGS"
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fi
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])
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## Configure body starts here.
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AC_PREREQ(2.59)
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AC_INIT([git], [@@GIT_VERSION@@], [git@vger.kernel.org])
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AC_CONFIG_SRCDIR([git.c])
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config_file=config.mak.autogen
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config_in=config.mak.in
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GIT_CONF_SUBST([AUTOCONFIGURED], [YesPlease])
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# Directories holding "saner" versions of common or POSIX binaries.
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AC_ARG_WITH([sane-tool-path],
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[AS_HELP_STRING(
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[--with-sane-tool-path=DIR-1[[:DIR-2...:DIR-n]]],
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[Directories to prepend to PATH in build system and generated scripts])],
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[if test "$withval" = "no"; then
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withval=''
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else
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AC_MSG_NOTICE([Setting SANE_TOOL_PATH to '$withval'])
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fi
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GIT_CONF_SUBST([SANE_TOOL_PATH], [$withval])],
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[# If the "--with-sane-tool-path" option was not given, don't touch
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# SANE_TOOL_PATH here, but let defaults in Makefile take care of it.
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# This should minimize spurious differences in the behaviour of the
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# Git build system when configure is used w.r.t. when it is not.
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:])
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## Site configuration related to programs (before tests)
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## --with-PACKAGE[=ARG] and --without-PACKAGE
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#
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# Set lib to alternative name of lib directory (e.g. lib64)
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AC_ARG_WITH([lib],
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[AS_HELP_STRING([--with-lib=ARG],
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[ARG specifies alternative name for lib directory])],
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[if test "$withval" = "no" || test "$withval" = "yes"; then
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AC_MSG_WARN([You should provide name for --with-lib=ARG])
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else
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lib=$withval
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AC_MSG_NOTICE([Setting lib to '$lib'])
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GIT_CONF_SUBST([lib])
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fi])
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if test -z "$lib"; then
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AC_MSG_NOTICE([Setting lib to 'lib' (the default)])
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lib=lib
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fi
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AC_ARG_ENABLE([pthreads],
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[AS_HELP_STRING([--enable-pthreads=FLAGS],
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[FLAGS is the value to pass to the compiler to enable POSIX Threads.]
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[The default if FLAGS is not specified is to try first -pthread]
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[and then -lpthread.]
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[--disable-pthreads will disable threading.])],
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[
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if test "x$enableval" = "xyes"; then
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AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads])
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elif test "x$enableval" != "xno"; then
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PTHREAD_CFLAGS=$enableval
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AC_MSG_NOTICE([Setting '$PTHREAD_CFLAGS' as the FLAGS to enable POSIX Threads])
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else
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AC_MSG_NOTICE([POSIX Threads will be disabled.])
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NO_PTHREADS=YesPlease
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USER_NOPTHREAD=1
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fi],
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[
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AC_MSG_NOTICE([Will try -pthread then -lpthread to enable POSIX Threads.])
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])
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# Define option to enable JavaScript minification
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AC_ARG_ENABLE([jsmin],
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[AS_HELP_STRING([--enable-jsmin=PATH],
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[PATH is the name of a JavaScript minifier or the absolute path to one.])],
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[
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JSMIN=$enableval;
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AC_MSG_NOTICE([Setting JSMIN to '$JSMIN' to enable JavaScript minifying])
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GIT_CONF_SUBST([JSMIN])
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])
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# Define option to enable CSS minification
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AC_ARG_ENABLE([cssmin],
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[AS_HELP_STRING([--enable-cssmin=PATH],
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[PATH is the name of a CSS minifier or the absolute path to one.])],
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[
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CSSMIN=$enableval;
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AC_MSG_NOTICE([Setting CSSMIN to '$CSSMIN' to enable CSS minifying])
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GIT_CONF_SUBST([CSSMIN])
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])
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## Site configuration (override autodetection)
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## --with-PACKAGE[=ARG] and --without-PACKAGE
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AC_MSG_NOTICE([CHECKS for site configuration])
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#
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# Define NO_SVN_TESTS if you want to skip time-consuming SVN interoperability
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# tests. These tests take up a significant amount of the total test time
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# but are not needed unless you plan to talk to SVN repos.
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#
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# Define PPC_SHA1 environment variable when running make to make use of
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# a bundled SHA1 routine optimized for PowerPC.
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#
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# Define NO_OPENSSL environment variable if you do not have OpenSSL.
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#
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# Define OPENSSLDIR=/foo/bar if your openssl header and library files are in
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# /foo/bar/include and /foo/bar/lib directories.
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AC_ARG_WITH(openssl,
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AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
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AS_HELP_STRING([], [ARG can be prefix for openssl library and headers]),
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GIT_PARSE_WITH([openssl]))
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# Define USE_LIBPCRE if you have and want to use libpcre. Various
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# commands such as log and grep offer runtime options to use
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# Perl-compatible regular expressions instead of standard or extended
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# POSIX regular expressions. Only libpcre version 2 is supported.
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#
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# Define LIBPCREDIR=/foo/bar if your PCRE header and library files are in
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# /foo/bar/include and /foo/bar/lib directories.
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#
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AC_ARG_WITH(libpcre1,
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AS_HELP_STRING([--with-libpcre1],[DEPRECATED]),
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AC_MSG_ERROR([support for --with-libpcre1 has been removed. Use --with-libpcre2!])
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)
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AC_ARG_WITH(libpcre,
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AS_HELP_STRING([--with-libpcre],[synonym for --with-libpcre2]),
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if test "$withval" = "no"; then
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USE_LIBPCRE2=
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elif test "$withval" = "yes"; then
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USE_LIBPCRE2=YesPlease
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else
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USE_LIBPCRE2=YesPlease
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LIBPCREDIR=$withval
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AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR])
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dnl USE_LIBPCRE2 can still be modified below, so don't substitute
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dnl it yet.
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GIT_CONF_SUBST([LIBPCREDIR])
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fi)
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AC_ARG_WITH(libpcre2,
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AS_HELP_STRING([--with-libpcre2],[support Perl-compatible regexes via libpcre2 (default is NO)])
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AS_HELP_STRING([], [ARG can be also prefix for libpcre library and headers]),
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if test -n "$USE_LIBPCRE2"; then
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AC_MSG_ERROR([Only supply one of --with-libpcre or its synonym --with-libpcre2!])
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fi
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if test "$withval" = "no"; then
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USE_LIBPCRE2=
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elif test "$withval" = "yes"; then
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USE_LIBPCRE2=YesPlease
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else
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USE_LIBPCRE2=YesPlease
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LIBPCREDIR=$withval
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AC_MSG_NOTICE([Setting LIBPCREDIR to $LIBPCREDIR])
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dnl USE_LIBPCRE2 can still be modified below, so don't substitute
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dnl it yet.
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GIT_CONF_SUBST([LIBPCREDIR])
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fi)
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#
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# Define HAVE_ALLOCA_H if you have working alloca(3) defined in that header.
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AC_FUNC_ALLOCA
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case $ac_cv_working_alloca_h in
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yes) HAVE_ALLOCA_H=YesPlease;;
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*) HAVE_ALLOCA_H='';;
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esac
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GIT_CONF_SUBST([HAVE_ALLOCA_H])
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#
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# Define NO_CURL if you do not have curl installed. git-http-pull and
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# git-http-push are not built, and you cannot use http:// and https://
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# transports.
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#
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# Define CURLDIR=/foo/bar if your curl header and library files are in
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# /foo/bar/include and /foo/bar/lib directories.
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AC_ARG_WITH(curl,
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AS_HELP_STRING([--with-curl],[support http(s):// transports (default is YES)])
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AS_HELP_STRING([], [ARG can be also prefix for curl library and headers]),
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GIT_PARSE_WITH(curl))
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#
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# Define NO_EXPAT if you do not have expat installed. git-http-push is
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# not built, and you cannot push using http:// and https:// transports.
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#
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# Define EXPATDIR=/foo/bar if your expat header and library files are in
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# /foo/bar/include and /foo/bar/lib directories.
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AC_ARG_WITH(expat,
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AS_HELP_STRING([--with-expat],
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[support git-push using http:// and https:// transports via WebDAV (default is YES)])
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AS_HELP_STRING([], [ARG can be also prefix for expat library and headers]),
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GIT_PARSE_WITH(expat))
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#
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# Define NO_FINK if you are building on Darwin/Mac OS X, have Fink
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# installed in /sw, but don't want GIT to link against any libraries
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# installed there. If defined you may specify your own (or Fink's)
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# include directories and library directories by defining CFLAGS
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# and LDFLAGS appropriately.
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#
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# Define NO_DARWIN_PORTS if you are building on Darwin/Mac OS X,
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# have DarwinPorts installed in /opt/local, but don't want GIT to
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# link against any libraries installed there. If defined you may
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# specify your own (or DarwinPort's) include directories and
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# library directories by defining CFLAGS and LDFLAGS appropriately.
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#
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# Define NO_MMAP if you want to avoid mmap.
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#
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# Define NO_ICONV if your libc does not properly support iconv.
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AC_ARG_WITH(iconv,
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AS_HELP_STRING([--without-iconv],
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[if your architecture doesn't properly support iconv])
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AS_HELP_STRING([--with-iconv=PATH],
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[PATH is prefix for libiconv library and headers])
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AS_HELP_STRING([],
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[used only if you need linking with libiconv]),
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GIT_PARSE_WITH(iconv))
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## --enable-FEATURE[=ARG] and --disable-FEATURE
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#
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# Define USE_NSEC below if you want git to care about sub-second file mtimes
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# and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
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# it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
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# randomly break unless your underlying filesystem supports those sub-second
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# times (my ext3 doesn't).
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#
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# Define USE_STDEV below if you want git to care about the underlying device
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# change being considered an inode change from the update-index perspective.
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#
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# Allow user to set ETC_GITCONFIG variable
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GIT_PARSE_WITH_SET_MAKE_VAR(gitconfig, ETC_GITCONFIG,
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Use VALUE instead of /etc/gitconfig as the
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global git configuration file.
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If VALUE is not fully qualified it will be interpreted
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as a path relative to the computed prefix at runtime.)
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#
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# Allow user to set ETC_GITATTRIBUTES variable
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GIT_PARSE_WITH_SET_MAKE_VAR(gitattributes, ETC_GITATTRIBUTES,
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Use VALUE instead of /etc/gitattributes as the
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global git attributes file.
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If VALUE is not fully qualified it will be interpreted
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as a path relative to the computed prefix at runtime.)
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#
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# Allow user to set the default pager
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GIT_PARSE_WITH_SET_MAKE_VAR(pager, DEFAULT_PAGER,
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Use VALUE as the fall-back pager instead of 'less'.
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This is used by things like 'git log' when the user
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does not specify a pager to use through alternate
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methods. eg: /usr/bin/pager)
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#
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# Allow user to set the default editor
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GIT_PARSE_WITH_SET_MAKE_VAR(editor, DEFAULT_EDITOR,
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Use VALUE as the fall-back editor instead of 'vi'.
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This is used by things like 'git commit' when the user
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does not specify a preferred editor through other
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methods. eg: /usr/bin/editor)
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#
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# Define SHELL_PATH to provide path to shell.
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GIT_ARG_SET_PATH(shell)
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#
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|
# 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 $ac_cv_c_inline in
|
|
inline | yes | no) INLINE='';;
|
|
*) INLINE=$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])
|
|
LDFLAGS="${SAVE_LDFLAGS}"
|
|
])
|
|
if test "$git_cv_ld_dashr" = "yes"; then
|
|
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
|
|
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
|
|
CC_LD_DYNPATH=-rpath
|
|
else
|
|
AC_CACHE_CHECK([if linker supports -Wl,+b,], git_cv_ld_wl_b, [
|
|
SAVE_LDFLAGS="${LDFLAGS}"
|
|
LDFLAGS="${SAVE_LDFLAGS} -Wl,+b,/"
|
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [git_cv_ld_wl_b=yes], [git_cv_ld_wl_b=no])
|
|
LDFLAGS="${SAVE_LDFLAGS}"
|
|
])
|
|
if test "$git_cv_ld_wl_b" = "yes"; then
|
|
CC_LD_DYNPATH=-Wl,+b,
|
|
else
|
|
CC_LD_DYNPATH=
|
|
AC_MSG_WARN([linker does not support runtime path to dynamic libraries])
|
|
fi
|
|
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 -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
|
|
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"
|
|
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 "${asciidoc_version}" in
|
|
asciidoc' '8*)
|
|
AC_MSG_RESULT([${asciidoc_version}])
|
|
;;
|
|
*)
|
|
AC_MSG_RESULT([${asciidoc_version} (unknown)])
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
## Checks for libraries.
|
|
AC_MSG_NOTICE([CHECKS for libraries])
|
|
#
|
|
# Define NO_OPENSSL environment variable if you do not have OpenSSL.
|
|
# Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin).
|
|
|
|
GIT_STASH_FLAGS($OPENSSLDIR)
|
|
|
|
AC_CHECK_LIB([crypto], [SHA1_Init],
|
|
[NEEDS_SSL_WITH_CRYPTO=],
|
|
[AC_CHECK_LIB([ssl], [SHA1_Init],
|
|
[NEEDS_SSL_WITH_CRYPTO=YesPlease NO_OPENSSL=],
|
|
[NEEDS_SSL_WITH_CRYPTO= NO_OPENSSL=YesPlease])])
|
|
|
|
GIT_UNSTASH_FLAGS($OPENSSLDIR)
|
|
|
|
GIT_CONF_SUBST([NEEDS_SSL_WITH_CRYPTO])
|
|
GIT_CONF_SUBST([NO_OPENSSL])
|
|
|
|
#
|
|
# Handle the USE_LIBPCRE options potentially set above.
|
|
#
|
|
|
|
if test -n "$USE_LIBPCRE2"; then
|
|
|
|
GIT_STASH_FLAGS($LIBPCREDIR)
|
|
|
|
AC_CHECK_LIB([pcre2-8], [pcre2_config_8],
|
|
[USE_LIBPCRE2=YesPlease],
|
|
[USE_LIBPCRE2=])
|
|
|
|
GIT_UNSTASH_FLAGS($LIBPCREDIR)
|
|
|
|
GIT_CONF_SUBST([USE_LIBPCRE2])
|
|
|
|
fi
|
|
|
|
#
|
|
# 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)
|
|
|
|
GIT_CONF_SUBST([NO_CURL])
|
|
|
|
if test -z "$NO_CURL"; then
|
|
|
|
AC_CHECK_PROG([CURL_CONFIG], [curl-config],
|
|
[curl-config],
|
|
[no])
|
|
|
|
if test $CURL_CONFIG != no; then
|
|
GIT_CONF_SUBST([CURL_CONFIG])
|
|
|
|
if test -z "$CURL_CONFIG_OPTS"; then
|
|
CURL_CONFIG_OPTS="--libs"
|
|
fi
|
|
|
|
CURL_LDFLAGS=$($CURL_CONFIG $CURL_CONFIG_OPTS)
|
|
AC_MSG_NOTICE([Setting CURL_LDFLAGS to '$CURL_LDFLAGS'])
|
|
GIT_CONF_SUBST([CURL_LDFLAGS], [$CURL_LDFLAGS])
|
|
fi
|
|
|
|
fi
|
|
|
|
|
|
#
|
|
# Define NO_EXPAT if you do not have expat installed. git-http-push is
|
|
# not built, and you cannot push using http:// and https:// transports.
|
|
|
|
GIT_STASH_FLAGS($EXPATDIR)
|
|
|
|
AC_CHECK_LIB([expat], [XML_ParserCreate],
|
|
[NO_EXPAT=],
|
|
[NO_EXPAT=YesPlease])
|
|
|
|
GIT_UNSTASH_FLAGS($EXPATDIR)
|
|
|
|
GIT_CONF_SUBST([NO_EXPAT])
|
|
|
|
#
|
|
# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
|
|
# some Solaris installations).
|
|
# Define NO_ICONV if neither libc nor libiconv support iconv.
|
|
|
|
if test -z "$NO_ICONV"; then
|
|
|
|
GIT_STASH_FLAGS($ICONVDIR)
|
|
|
|
AC_DEFUN([ICONVTEST_SRC],
|
|
[AC_LANG_PROGRAM([#include <iconv.h>],
|
|
[iconv_open("", "");])])
|
|
|
|
if test -n "$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)
|
|
|
|
GIT_CONF_SUBST([NEEDS_LIBICONV])
|
|
GIT_CONF_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], [
|
|
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_MSG_RESULT([yes])],
|
|
[AC_MSG_RESULT([no])
|
|
NO_DEFLATE_BOUND=yes])
|
|
LIBS="$old_LIBS"
|
|
|
|
GIT_UNSTASH_FLAGS($ZLIB_PATH)
|
|
|
|
GIT_CONF_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])
|
|
GIT_CONF_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=
|
|
#
|
|
# 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])
|
|
GIT_CONF_SUBST([NEEDS_LIBGEN])
|
|
test -n "$NEEDS_LIBGEN" && LIBS="$LIBS -lgen"
|
|
|
|
AC_DEFUN([LIBINTL_SRC], [
|
|
AC_LANG_PROGRAM([[
|
|
#include <libintl.h>
|
|
]],[[
|
|
char *msg = gettext("test");
|
|
]])])
|
|
|
|
AC_MSG_CHECKING([if libc contains libintl])
|
|
AC_LINK_IFELSE([LIBINTL_SRC],
|
|
[AC_MSG_RESULT([yes])
|
|
LIBC_CONTAINS_LIBINTL=YesPlease],
|
|
[AC_MSG_RESULT([no])
|
|
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="$LIBS -lintl"
|
|
fi
|
|
|
|
## Checks for header files.
|
|
AC_MSG_NOTICE([CHECKS for header files])
|
|
#
|
|
# Define NO_SYS_SELECT_H if you don't have sys/select.h.
|
|
AC_CHECK_HEADER([sys/select.h],
|
|
[NO_SYS_SELECT_H=],
|
|
[NO_SYS_SELECT_H=UnfortunatelyYes])
|
|
GIT_CONF_SUBST([NO_SYS_SELECT_H])
|
|
#
|
|
# Define NO_POLL_H if you don't have poll.h
|
|
AC_CHECK_HEADER([poll.h],
|
|
[NO_POLL_H=],
|
|
[NO_POLL_H=UnfortunatelyYes])
|
|
GIT_CONF_SUBST([NO_POLL_H])
|
|
#
|
|
# Define NO_SYS_POLL_H if you don't have sys/poll.h
|
|
AC_CHECK_HEADER([sys/poll.h],
|
|
[NO_SYS_POLL_H=],
|
|
[NO_SYS_POLL_H=UnfortunatelyYes])
|
|
GIT_CONF_SUBST([NO_SYS_POLL_H])
|
|
#
|
|
# Define NO_INTTYPES_H if you don't have inttypes.h
|
|
AC_CHECK_HEADER([inttypes.h],
|
|
[NO_INTTYPES_H=],
|
|
[NO_INTTYPES_H=UnfortunatelyYes])
|
|
GIT_CONF_SUBST([NO_INTTYPES_H])
|
|
#
|
|
# Define OLD_ICONV if your library has an old iconv(), where the second
|
|
# (input buffer pointer) parameter is declared with type (const char **).
|
|
AC_DEFUN([OLDICONVTEST_SRC], [
|
|
AC_LANG_PROGRAM([[
|
|
#include <iconv.h>
|
|
|
|
extern size_t iconv(iconv_t cd,
|
|
char **inbuf, size_t *inbytesleft,
|
|
char **outbuf, size_t *outbytesleft);
|
|
]], [])])
|
|
|
|
GIT_STASH_FLAGS($ICONVDIR)
|
|
|
|
AC_MSG_CHECKING([for old iconv()])
|
|
AC_COMPILE_IFELSE([OLDICONVTEST_SRC],
|
|
[AC_MSG_RESULT([no])],
|
|
[AC_MSG_RESULT([yes])
|
|
AC_DEFINE(HAVE_OLD_ICONV, 1)
|
|
OLD_ICONV=UnfortunatelyYes])
|
|
|
|
GIT_UNSTASH_FLAGS($ICONVDIR)
|
|
|
|
GIT_CONF_SUBST([OLD_ICONV])
|
|
|
|
#
|
|
# Define ICONV_OMITS_BOM if you are on a system which
|
|
# iconv omits bom for utf-{16,32}
|
|
if test -z "$NO_ICONV"; then
|
|
AC_CACHE_CHECK([whether iconv omits bom for utf-16 and utf-32],
|
|
[ac_cv_iconv_omits_bom],
|
|
[
|
|
old_LIBS="$LIBS"
|
|
if test -n "$NEEDS_LIBICONV"; then
|
|
LIBS="$LIBS -liconv"
|
|
fi
|
|
|
|
AC_RUN_IFELSE(
|
|
[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
|
|
#include <iconv.h>
|
|
#ifdef HAVE_OLD_ICONV
|
|
typedef const char *iconv_ibp;
|
|
#else
|
|
typedef char *iconv_ibp;
|
|
#endif
|
|
],
|
|
[[
|
|
int v;
|
|
iconv_t conv;
|
|
char in[] = "a"; iconv_ibp pin = in;
|
|
char out[20] = ""; char *pout = out;
|
|
size_t isz = sizeof in;
|
|
size_t osz = sizeof out;
|
|
|
|
conv = iconv_open("UTF-16", "UTF-8");
|
|
iconv(conv, &pin, &isz, &pout, &osz);
|
|
iconv_close(conv);
|
|
v = (unsigned char)(out[0]) + (unsigned char)(out[1]);
|
|
return v != 0xfe + 0xff;
|
|
]])],
|
|
[ac_cv_iconv_omits_bom=no],
|
|
[ac_cv_iconv_omits_bom=yes])
|
|
|
|
LIBS="$old_LIBS"
|
|
])
|
|
if test "x$ac_cv_iconv_omits_bom" = xyes; then
|
|
ICONV_OMITS_BOM=Yes
|
|
else
|
|
ICONV_OMITS_BOM=
|
|
fi
|
|
GIT_CONF_SUBST([ICONV_OMITS_BOM])
|
|
fi
|
|
|
|
## 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_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>])
|
|
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.
|
|
AC_CHECK_TYPE(struct sockaddr_storage,
|
|
[NO_SOCKADDR_STORAGE=],
|
|
[NO_SOCKADDR_STORAGE=YesPlease],[
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
])
|
|
GIT_CONF_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>
|
|
])
|
|
GIT_CONF_SUBST([NO_IPV6])
|
|
#
|
|
# Define NO_REGEX if your C library lacks regex support with REG_STARTEND
|
|
# feature.
|
|
AC_CACHE_CHECK([whether the platform regex supports REG_STARTEND],
|
|
[ac_cv_c_regex_with_reg_startend], [
|
|
AC_EGREP_CPP(yippeeyeswehaveit,
|
|
AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
|
|
#include <regex.h>
|
|
],
|
|
[#ifdef REG_STARTEND
|
|
yippeeyeswehaveit
|
|
#endif
|
|
]),
|
|
[ac_cv_c_regex_with_reg_startend=yes],
|
|
[ac_cv_c_regex_with_reg_startend=no])
|
|
])
|
|
if test $ac_cv_c_regex_with_reg_startend = yes; then
|
|
NO_REGEX=
|
|
else
|
|
NO_REGEX=YesPlease
|
|
fi
|
|
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.
|
|
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],
|
|
[[
|
|
FILE *f = fopen(".", "r");
|
|
return f != NULL;]])],
|
|
[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
|
|
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
|
|
# 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
|
|
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.
|
|
## (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])
|
|
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 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])
|
|
GIT_CONF_SUBST([NO_STRCASESTR])
|
|
#
|
|
# Define NO_MEMMEM if you don't have memmem.
|
|
GIT_CHECK_FUNC(memmem,
|
|
[NO_MEMMEM=],
|
|
[NO_MEMMEM=YesPlease])
|
|
GIT_CONF_SUBST([NO_MEMMEM])
|
|
#
|
|
# Define NO_STRLCPY if you don't have strlcpy.
|
|
GIT_CHECK_FUNC(strlcpy,
|
|
[NO_STRLCPY=],
|
|
[NO_STRLCPY=YesPlease])
|
|
GIT_CONF_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>
|
|
])
|
|
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])
|
|
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])
|
|
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])
|
|
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])
|
|
GIT_CONF_SUBST([NO_MKDTEMP])
|
|
#
|
|
# 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 HAVE_GETDELIM if you have getdelim in the C library.
|
|
GIT_CHECK_FUNC(getdelim,
|
|
[HAVE_GETDELIM=YesPlease],
|
|
[HAVE_GETDELIM=])
|
|
GIT_CONF_SUBST([HAVE_GETDELIM])
|
|
#
|
|
#
|
|
# 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
|
|
# 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], [
|
|
AC_LANG_PROGRAM([[
|
|
#include <pthread.h>
|
|
static void *noop(void *ignore) { return ignore; }
|
|
]], [[
|
|
pthread_mutex_t test_mutex;
|
|
pthread_key_t test_key;
|
|
pthread_t th;
|
|
int retcode = 0;
|
|
void *ret = (void *)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);
|
|
retcode |= pthread_create(&th, ret, noop, ret);
|
|
retcode |= pthread_join(th, &ret);
|
|
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 "$PTHREAD_CFLAGS"; then
|
|
threads_found=no
|
|
# Attempt to compile and link some code using pthreads to determine
|
|
# required linker flags. The order is somewhat important here: We
|
|
# first try it without any extra flags, to catch systems where
|
|
# pthreads are part of the C library, then go on testing various other
|
|
# flags. We do so to avoid false positives. For example, on Mac OS X
|
|
# pthreads are part of the C library; moreover, the compiler allows us
|
|
# to add "-mt" to the CFLAGS (although it will do nothing except
|
|
# trigger a warning about an unused flag). Hence if we checked for
|
|
# "-mt" before "" we would end up picking it. But unfortunately this
|
|
# would then trigger compiler warnings on every single file we compile.
|
|
for opt in "" -mt -pthread -lpthread; do
|
|
old_CFLAGS="$CFLAGS"
|
|
old_LIBS="$LIBS"
|
|
case "$opt" in
|
|
-l*) LIBS="$opt $LIBS" ;;
|
|
*) CFLAGS="$opt $CFLAGS" ;;
|
|
esac
|
|
|
|
AC_MSG_CHECKING([for POSIX Threads with '$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="$old_CFLAGS"
|
|
LIBS="$old_LIBS"
|
|
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 $CFLAGS"
|
|
AC_MSG_CHECKING([for POSIX Threads with '$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="$old_CFLAGS"
|
|
|
|
GIT_CONF_SUBST([PTHREAD_CFLAGS])
|
|
GIT_CONF_SUBST([PTHREAD_LIBS])
|
|
GIT_CONF_SUBST([NO_PTHREADS])
|
|
|
|
## Output files
|
|
AC_CONFIG_FILES(["${config_file}":"${config_in}"])
|
|
AC_OUTPUT
|