configure.ac - platform/external/pkg-config - Git at Google

 AC_PREREQ([2.62])
 AC_INIT([pkg-config],
         [0.29.2],
         [https://gitlab.freedesktop.org/pkg-config/pkg-config],
         [pkg-config])

 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([main.c])

 dnl Initialize automake. Sadly, we have to kludge around the automake
 dnl test driver here. We need to use the serial driver (for now), but
 dnl the parallel driver is the default in 1.13. So, we want to specify
 dnl the serial driver. Unfortunately, the option to specify that driver
 dnl didn't exist until 1.12.
 m4_define([automake_version],
     [m4_esyscmd([${AUTOMAKE-automake} --version |
                  awk '/^automake/{print $NF}'])])
 m4_define([automake_serial_tests],
     [m4_if(m4_version_compare(automake_version, [1.12]), [-1],
                                [], [serial-tests])])
 AM_INIT_AUTOMAKE([1.11 ]automake_serial_tests)

 dnl Initialize libtool
 LT_PREREQ([2.2])
 LT_INIT

 dnl Support silent build rules, requires at least automake-1.11. Disable
 dnl by either passing --disable-silent-rules to configure or passing V=1
 dnl to make
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

 dnl Enable large file support
 AC_SYS_LARGEFILE

 dnl Check for programs
 AC_PROG_CC
 AC_CHECK_PROG([LN], [ln], [ln], [cp -Rp])

 dnl Check for headers
 AC_CHECK_HEADERS([dirent.h unistd.h sys/wait.h malloc.h])

 dnl A POSIX shell is required for the tests. If TEST_SHELL hasn't been
 dnl set on the command line then we try to find bash or ksh or sh from
 dnl the path. If none of those are available, we just use whatever
 dnl autoconf detected for configure.
 AC_ARG_VAR([TESTS_SHELL], [Path to a POSIX shell to be used for testing])
 conf_path="$PATH:`getconf PATH 2>/dev/null`"
 AC_PATH_PROGS([TESTS_SHELL], [bash ksh sh], [$CONFIG_SHELL], [$conf_path])

 dnl The built pkg-config to use for testing. This allows it to be set
 dnl from the make command line if necessary.
 AC_SUBST([TESTS_PKG_CONFIG], ['${top_builddir}/pkg-config${EXEEXT}'])

 dnl
 dnl Default pkg-config search path
 dnl
 AC_MSG_CHECKING([for default search path for .pc files])
 AC_ARG_WITH([pc_path],
   [AS_HELP_STRING([--with-pc-path],
     [default search path for .pc files])],
   [pc_path="$withval"],
   [
 # This is slightly wrong, but hopefully causes less confusion than
 # people being unable to find their .pc files in the standard location.
 if test "${prefix}" = "NONE"; then
 	pc_path='${libdir}/pkgconfig:${datadir}/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig'
 else
 	pc_path='${libdir}/pkgconfig:${datadir}/pkgconfig'
 fi
 ])
 AC_MSG_RESULT([$pc_path])
 AC_SUBST([pc_path])

 dnl
 dnl System default -I paths
 dnl
 AC_MSG_CHECKING([for system include path to avoid -I flags])
 AC_ARG_WITH([system_include_path],
   [AS_HELP_STRING([--with-system-include-path],
     [avoid -I flags from the given path])],
   [system_include_path="$withval"],
   [system_include_path="/usr/include"])
 AC_MSG_RESULT([$system_include_path])
 AC_SUBST([system_include_path])

 dnl
 dnl System default -L paths
 dnl
 AC_MSG_CHECKING([for system library path to avoid -L flags])
 AC_ARG_WITH([system_library_path],
   [AS_HELP_STRING([--with-system-library-path],
     [avoid -L flags from the given path])],
   [system_library_path="$withval"],
   [
 pc_lib_sfx=`echo "$libdir" | sed 's:.*/lib::'`
 case "$pc_lib_sfx" in
 */*|"")
   system_library_path="/usr/lib:/lib"
   ;;
 *)
   system_library_path="/usr/lib$pc_lib_sfx:/lib$pc_lib_sfx:/usr/lib:/lib"
   ;;
 esac
 ])
 AC_MSG_RESULT([$system_library_path])
 AC_SUBST([system_library_path])

 dnl Code taken from gtk+-2.0's configure.in.
 dnl
 dnl This causes pkg-config to not list private dependencies (a very
 dnl common example is libm) on platforms which support inter-library
 dnl dependencies.
 dnl
 dnl When using libtool 2.x, we need to force libtool to be created
 dnl early so we can use it here.
 m4_ifdef([LT_OUTPUT], [LT_OUTPUT])

 AC_ARG_ENABLE([indirect-deps],
     [AS_HELP_STRING([--enable-indirect-deps],
                     [list both direct and indirect dependencies.])
      AS_HELP_STRING([--disable-indirect-deps],
                     [only list direct dependencies.])
     [default=auto]],
     [use_indirect_deps=$enableval],
     [use_indirect_deps=auto])
 echo use_indirect_deps=$use_indirect_deps >&AS_MESSAGE_LOG_FD
 AC_MSG_CHECKING([whether to list both direct and indirect dependencies])
 case $use_indirect_deps in
   auto)
     deplibs_check_method=`(./libtool --config; echo eval echo '\"$deplibs_check_method\"') | sh`
     if test "X$deplibs_check_method" = Xnone; then
     echo "foo: $deplibs_check_method" >&AS_MESSAGE_LOG_FD
       use_indirect_deps=yes
     else
       use_indirect_deps=no
     fi
   ;;
   yes|no)
   ;;
   *) AC_MSG_ERROR([Value given to --enable-indirect-deps must be one of yes, no
 or auto])
   ;;
 esac
 AC_MSG_RESULT($use_indirect_deps)
 AC_DEFINE_UNQUOTED([ENABLE_INDIRECT_DEPS],
     [`test $use_indirect_deps = yes && echo TRUE || echo FALSE`],
     [Link library to all dependent libraries, not only directly needed ones])
 AC_SUBST([use_indirect_deps])

 dnl
 dnl Choose default CFLAGS and warnings depending on compiler.
 dnl
 WARN_CFLAGS=""
 if test "${GCC}" = "yes" && test "${ac_env_CFLAGS_set}" != "set"; then
    WARN_CFLAGS="-g -Wall -O2"
 fi
 AC_SUBST(WARN_CFLAGS)

 AC_MSG_CHECKING([for Win32])
 case "$host" in
   *-*-mingw*)
     native_win32=yes
   ;;
   *)
     native_win32=no
   ;;
 esac
 AC_MSG_RESULT([$native_win32])
 AC_SUBST([native_win32])
 AM_CONDITIONAL(NATIVE_WIN32, [test "x$native_win32" = xyes])

 dnl When cross compiling to Windows, Wine might be available to help
 dnl for testing.
 if test "$cross_compiling" = yes && test "$native_win32" = yes; then
    AC_CHECK_PROG([WINE], [wine], [wine])
    test "x$WINE" != x && TESTS_PKG_CONFIG='${WINE} '"$TESTS_PKG_CONFIG"
 fi

 dnl On Windows, the prefix variable in .pc files can be redfined at
 dnl runtime. Allow the default behavior to be controlled.
 AC_MSG_CHECKING([if prefix should be redefined at runtime])
 AC_ARG_ENABLE([define_prefix],
   [AS_HELP_STRING([--enable-define-prefix],
     [redefine prefix in .pc files @<:@default=yes on Win32@:>@])],
   [],
   [enable_define_prefix=$native_win32])
 AC_MSG_RESULT([$enable_define_prefix])
 AC_DEFINE_UNQUOTED([ENABLE_DEFINE_PREFIX],
   [`test "x$enable_define_prefix" = xyes && echo TRUE || echo FALSE`],
   [Define ${prefix} in .pc files at runtime])

 dnl
 dnl Find glib or use internal copy. Required version is 2.16 for
 dnl g_win32_get_package_installation_directory_of_module().
 dnl
 dnl Pull in pkg-config macros to find external glib.
 dnl
 m4_include([pkg.m4.in])
 m4_define([glib_module], [glib-2.0 >= 2.16])
 AC_ARG_WITH([internal-glib],
   [AS_HELP_STRING([--with-internal-glib], [use internal glib])],
   [with_internal_glib="$withval"],
   [with_internal_glib=no])
 AM_CONDITIONAL([INTERNAL_GLIB], [test "x$with_internal_glib" = xyes])
 AC_MSG_CHECKING([if internal glib should be used])
 if test "x$with_internal_glib" = xyes; then
   AC_MSG_RESULT([yes])
   GLIB_CFLAGS='-I$(top_srcdir)/glib -I$(top_srcdir)/glib/glib \
     -I$(top_builddir)/glib/glib'
   GLIB_LIBS='$(top_builddir)/glib/glib/libglib-2.0.la'
   AC_CONFIG_SUBDIRS([glib])
 else
   AC_MSG_RESULT([no])
   PKG_CHECK_MODULES([GLIB], glib_module, [], [AC_MSG_ERROR([]dnl
 [m4_normalize([Either a previously installed pkg-config or "]glib_module["
               could not be found. Please set GLIB_CFLAGS and GLIB_LIBS to
               the correct values or pass --with-internal-glib to configure
               to use the bundled copy.])])])
 fi
 AC_SUBST(GLIB_LIBS)
 AC_SUBST(GLIB_CFLAGS)

 dnl
 dnl Optional gcov test coverage usage
 dnl
 AC_ARG_WITH([gcov],
   [AS_HELP_STRING([--with-gcov], [gcov test coverage @<:@default=no@:>@])],
   [],
   [with_gcov=no])
 if test "x$with_gcov" = xyes; then
   if test "$GCC" = no; then
     AC_MSG_ERROR([gcov test coverage can only be used with GCC])
   fi

   AC_PATH_PROG([GCOV], [gcov], [AC_MSG_ERROR([could not find gcov program])])
   GCOV_CFLAGS="-fprofile-arcs -ftest-coverage"

   # Ensure there's no optimizing since last -O wins and CFLAGS is used
   # at the end of COMPILE/LTCOMPILE.
   CFLAGS="${CFLAGS+$CFLAGS }-O0"
 fi
 AC_SUBST([GCOV_CFLAGS])

 dnl See if the user wants a host- prefixed tool
 dnl (e.g. i686-pc-linux-gnu-pkg-config) to be installed.
 dnl
 AC_MSG_CHECKING([if host- prefixed tool should be installed])
 AC_ARG_ENABLE([host-tool],
   [AS_HELP_STRING([--disable-host-tool],
     [install link to pkg-config with $host- prefix @<:@default=yes@:>@])],
   [],
   [enable_host_tool=yes])
 AC_MSG_RESULT([$enable_host_tool])
 AM_CONDITIONAL([HOST_TOOL], [test "x$enable_host_tool" = xyes])

 AC_CONFIG_FILES([
 Makefile
 pkg.m4
 check/Makefile
 check/config.sh
 config.h.win32
 ])
 AC_OUTPUT
	AC_PREREQ([2.62])
	AC_INIT([pkg-config],
	[0.29.2],
	[https://gitlab.freedesktop.org/pkg-config/pkg-config],
	[pkg-config])

	AC_CONFIG_HEADERS([config.h])
	AC_CONFIG_SRCDIR([main.c])

	dnl Initialize automake. Sadly, we have to kludge around the automake
	dnl test driver here. We need to use the serial driver (for now), but
	dnl the parallel driver is the default in 1.13. So, we want to specify
	dnl the serial driver. Unfortunately, the option to specify that driver
	dnl didn't exist until 1.12.
	m4_define([automake_version],
	[m4_esyscmd([${AUTOMAKE-automake} --version \|
	awk '/^automake/{print $NF}'])])
	m4_define([automake_serial_tests],
	[m4_if(m4_version_compare(automake_version, [1.12]), [-1],
	[], [serial-tests])])
	AM_INIT_AUTOMAKE([1.11 ]automake_serial_tests)

	dnl Initialize libtool
	LT_PREREQ([2.2])
	LT_INIT

	dnl Support silent build rules, requires at least automake-1.11. Disable
	dnl by either passing --disable-silent-rules to configure or passing V=1
	dnl to make
	m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

	dnl Enable large file support
	AC_SYS_LARGEFILE

	dnl Check for programs
	AC_PROG_CC
	AC_CHECK_PROG([LN], [ln], [ln], [cp -Rp])

	dnl Check for headers
	AC_CHECK_HEADERS([dirent.h unistd.h sys/wait.h malloc.h])

	dnl A POSIX shell is required for the tests. If TEST_SHELL hasn't been
	dnl set on the command line then we try to find bash or ksh or sh from
	dnl the path. If none of those are available, we just use whatever
	dnl autoconf detected for configure.
	AC_ARG_VAR([TESTS_SHELL], [Path to a POSIX shell to be used for testing])
	conf_path="$PATH:`getconf PATH 2>/dev/null`"
	AC_PATH_PROGS([TESTS_SHELL], [bash ksh sh], [$CONFIG_SHELL], [$conf_path])

	dnl The built pkg-config to use for testing. This allows it to be set
	dnl from the make command line if necessary.
	AC_SUBST([TESTS_PKG_CONFIG], ['${top_builddir}/pkg-config${EXEEXT}'])

	dnl
	dnl Default pkg-config search path
	dnl
	AC_MSG_CHECKING([for default search path for .pc files])
	AC_ARG_WITH([pc_path],
	[AS_HELP_STRING([--with-pc-path],
	[default search path for .pc files])],
	[pc_path="$withval"],
	[
	# This is slightly wrong, but hopefully causes less confusion than
	# people being unable to find their .pc files in the standard location.
	if test "${prefix}" = "NONE"; then
	pc_path='${libdir}/pkgconfig:${datadir}/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig'
	else
	pc_path='${libdir}/pkgconfig:${datadir}/pkgconfig'
	fi
	])
	AC_MSG_RESULT([$pc_path])
	AC_SUBST([pc_path])

	dnl
	dnl System default -I paths
	dnl
	AC_MSG_CHECKING([for system include path to avoid -I flags])
	AC_ARG_WITH([system_include_path],
	[AS_HELP_STRING([--with-system-include-path],
	[avoid -I flags from the given path])],
	[system_include_path="$withval"],
	[system_include_path="/usr/include"])
	AC_MSG_RESULT([$system_include_path])
	AC_SUBST([system_include_path])

	dnl
	dnl System default -L paths
	dnl
	AC_MSG_CHECKING([for system library path to avoid -L flags])
	AC_ARG_WITH([system_library_path],
	[AS_HELP_STRING([--with-system-library-path],
	[avoid -L flags from the given path])],
	[system_library_path="$withval"],
	[
	pc_lib_sfx=`echo "$libdir" \| sed 's:.*/lib::'`
	case "$pc_lib_sfx" in
	/\|"")
	system_library_path="/usr/lib:/lib"
	;;
	*)
	system_library_path="/usr/lib$pc_lib_sfx:/lib$pc_lib_sfx:/usr/lib:/lib"
	;;
	esac
	])
	AC_MSG_RESULT([$system_library_path])
	AC_SUBST([system_library_path])

	dnl Code taken from gtk+-2.0's configure.in.
	dnl
	dnl This causes pkg-config to not list private dependencies (a very
	dnl common example is libm) on platforms which support inter-library
	dnl dependencies.
	dnl
	dnl When using libtool 2.x, we need to force libtool to be created
	dnl early so we can use it here.
	m4_ifdef([LT_OUTPUT], [LT_OUTPUT])

	AC_ARG_ENABLE([indirect-deps],
	[AS_HELP_STRING([--enable-indirect-deps],
	[list both direct and indirect dependencies.])
	AS_HELP_STRING([--disable-indirect-deps],
	[only list direct dependencies.])
	[default=auto]],
	[use_indirect_deps=$enableval],
	[use_indirect_deps=auto])
	echo use_indirect_deps=$use_indirect_deps >&AS_MESSAGE_LOG_FD
	AC_MSG_CHECKING([whether to list both direct and indirect dependencies])
	case $use_indirect_deps in
	auto)
	deplibs_check_method=`(./libtool --config; echo eval echo '\"$deplibs_check_method\"') \| sh`
	if test "X$deplibs_check_method" = Xnone; then
	echo "foo: $deplibs_check_method" >&AS_MESSAGE_LOG_FD
	use_indirect_deps=yes
	else
	use_indirect_deps=no
	fi
	;;
	yes\|no)
	;;
	*) AC_MSG_ERROR([Value given to --enable-indirect-deps must be one of yes, no
	or auto])
	;;
	esac
	AC_MSG_RESULT($use_indirect_deps)
	AC_DEFINE_UNQUOTED([ENABLE_INDIRECT_DEPS],
	[`test $use_indirect_deps = yes && echo TRUE \|\| echo FALSE`],
	[Link library to all dependent libraries, not only directly needed ones])
	AC_SUBST([use_indirect_deps])

	dnl
	dnl Choose default CFLAGS and warnings depending on compiler.
	dnl
	WARN_CFLAGS=""
	if test "${GCC}" = "yes" && test "${ac_env_CFLAGS_set}" != "set"; then
	WARN_CFLAGS="-g -Wall -O2"
	fi
	AC_SUBST(WARN_CFLAGS)

	AC_MSG_CHECKING([for Win32])
	case "$host" in
	--mingw*)
	native_win32=yes
	;;
	*)
	native_win32=no
	;;
	esac
	AC_MSG_RESULT([$native_win32])
	AC_SUBST([native_win32])
	AM_CONDITIONAL(NATIVE_WIN32, [test "x$native_win32" = xyes])

	dnl When cross compiling to Windows, Wine might be available to help
	dnl for testing.
	if test "$cross_compiling" = yes && test "$native_win32" = yes; then
	AC_CHECK_PROG([WINE], [wine], [wine])
	test "x$WINE" != x && TESTS_PKG_CONFIG='${WINE} '"$TESTS_PKG_CONFIG"
	fi

	dnl On Windows, the prefix variable in .pc files can be redfined at
	dnl runtime. Allow the default behavior to be controlled.
	AC_MSG_CHECKING([if prefix should be redefined at runtime])
	AC_ARG_ENABLE([define_prefix],
	[AS_HELP_STRING([--enable-define-prefix],
	[redefine prefix in .pc files @<:@default=yes on Win32@:>@])],
	[],
	[enable_define_prefix=$native_win32])
	AC_MSG_RESULT([$enable_define_prefix])
	AC_DEFINE_UNQUOTED([ENABLE_DEFINE_PREFIX],
	[`test "x$enable_define_prefix" = xyes && echo TRUE \|\| echo FALSE`],
	[Define ${prefix} in .pc files at runtime])

	dnl
	dnl Find glib or use internal copy. Required version is 2.16 for
	dnl g_win32_get_package_installation_directory_of_module().
	dnl
	dnl Pull in pkg-config macros to find external glib.
	dnl
	m4_include([pkg.m4.in])
	m4_define([glib_module], [glib-2.0 >= 2.16])
	AC_ARG_WITH([internal-glib],
	[AS_HELP_STRING([--with-internal-glib], [use internal glib])],
	[with_internal_glib="$withval"],
	[with_internal_glib=no])
	AM_CONDITIONAL([INTERNAL_GLIB], [test "x$with_internal_glib" = xyes])
	AC_MSG_CHECKING([if internal glib should be used])
	if test "x$with_internal_glib" = xyes; then
	AC_MSG_RESULT([yes])
	GLIB_CFLAGS='-I$(top_srcdir)/glib -I$(top_srcdir)/glib/glib \
	-I$(top_builddir)/glib/glib'
	GLIB_LIBS='$(top_builddir)/glib/glib/libglib-2.0.la'
	AC_CONFIG_SUBDIRS([glib])
	else
	AC_MSG_RESULT([no])
	PKG_CHECK_MODULES([GLIB], glib_module, [], [AC_MSG_ERROR([]dnl
	[m4_normalize([Either a previously installed pkg-config or "]glib_module["
	could not be found. Please set GLIB_CFLAGS and GLIB_LIBS to
	the correct values or pass --with-internal-glib to configure
	to use the bundled copy.])])])
	fi
	AC_SUBST(GLIB_LIBS)
	AC_SUBST(GLIB_CFLAGS)

	dnl
	dnl Optional gcov test coverage usage
	dnl
	AC_ARG_WITH([gcov],
	[AS_HELP_STRING([--with-gcov], [gcov test coverage @<:@default=no@:>@])],
	[],
	[with_gcov=no])
	if test "x$with_gcov" = xyes; then
	if test "$GCC" = no; then
	AC_MSG_ERROR([gcov test coverage can only be used with GCC])
	fi

	AC_PATH_PROG([GCOV], [gcov], [AC_MSG_ERROR([could not find gcov program])])
	GCOV_CFLAGS="-fprofile-arcs -ftest-coverage"

	# Ensure there's no optimizing since last -O wins and CFLAGS is used
	# at the end of COMPILE/LTCOMPILE.
	CFLAGS="${CFLAGS+$CFLAGS }-O0"
	fi
	AC_SUBST([GCOV_CFLAGS])

	dnl See if the user wants a host- prefixed tool
	dnl (e.g. i686-pc-linux-gnu-pkg-config) to be installed.
	dnl
	AC_MSG_CHECKING([if host- prefixed tool should be installed])
	AC_ARG_ENABLE([host-tool],
	[AS_HELP_STRING([--disable-host-tool],
	[install link to pkg-config with $host- prefix @<:@default=yes@:>@])],
	[],
	[enable_host_tool=yes])
	AC_MSG_RESULT([$enable_host_tool])
	AM_CONDITIONAL([HOST_TOOL], [test "x$enable_host_tool" = xyes])

	AC_CONFIG_FILES([
	Makefile
	pkg.m4
	check/Makefile
	check/config.sh
	config.h.win32
	])
	AC_OUTPUT