-# generated automatically by aclocal 1.7.6 -*- Autoconf -*-
+# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
-# Free Software Foundation, Inc.
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
+m4_ifndef([AC_AUTOCONF_VERSION],
+ [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.64],,
+[m4_warning([this file was generated for autoconf 2.64.
+You have another version of autoconf. It may work, but is not guaranteed to.
+If you have problems, you may need to regenerate the build system entirely.
+To do so, use the procedure documented by the package, typically `autoreconf'.])])
-dnl
-dnl GLIBCXX_CONDITIONAL (NAME, SHELL-TEST)
-dnl
-dnl Exactly like AM_CONDITIONAL, but delays evaluation of the test until the
-dnl end of configure. This lets tested variables be reassigned, and the
-dnl conditional will depend on the final state of the variable. For a simple
-dnl example of why this is needed, see GLIBCXX_ENABLE_HOSTED.
-dnl
-m4_define([_m4_divert(glibcxx_diversion)], 8000)dnl
-AC_DEFUN(GLIBCXX_CONDITIONAL, [dnl
- m4_divert_text([glibcxx_diversion],dnl
- AM_CONDITIONAL([$1],[$2])
- )dnl
-])dnl
-AC_DEFUN(GLIBCXX_EVALUATE_CONDITIONALS, [m4_undivert([glibcxx_diversion])])dnl
-
-
-dnl
-dnl Check to see what architecture and operating system we are compiling
-dnl for. Also, if architecture- or OS-specific flags are required for
-dnl compilation, pick them up here.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_HOST, [
- . $glibcxx_srcdir/configure.host
- AC_MSG_NOTICE(CPU config directory is $cpu_include_dir)
- AC_MSG_NOTICE(OS config directory is $os_include_dir)
-])
-
-
-dnl
-dnl Initialize basic configure bits.
-dnl
-dnl Substs:
-dnl multi_basedir
-dnl
-AC_DEFUN(GLIBCXX_TOPREL_CONFIGURE, [
- # Sets up multi_basedir, which is srcdir/.. plus the usual
- # "multi_source_toprel_bottom_adjust" lunacy as needed.
- AM_ENABLE_MULTILIB(, ..)
-
- # The generated code is exactly the same, except that automake's looks in
- # ".. $srcdir/.." and autoconf's looks in multi_basedir. Apparently other
- # things are triggered on the presence of the two ...AUX_DIR[S], but I don't
- # know what they are or what the other differences might be (and they keep
- # changing anyhow).
- #
- # Looking in multi_basedir seems smarter, so actually execute that branch.
- if false; then
- # this is for automake
- AC_CONFIG_AUX_DIR(..)
- else
- # this is for autoconf
- AC_CONFIG_AUX_DIRS(${multi_basedir})
- fi
-
- dnl XXX Turn this on.
- dnl AC_LANG_CPLUSPLUS
-])
-
-
-dnl
-dnl Initialize the rest of the library configury. At this point we have
-dnl variables like $host.
-dnl
-dnl Sets:
-dnl gcc_version (x.y.z format)
-dnl SUBDIRS
-dnl Substs:
-dnl glibcxx_builddir (absolute path)
-dnl glibcxx_srcdir (absolute path)
-dnl toplevel_srcdir (absolute path)
-dnl with_cross_host
-dnl with_newlib
-dnl with_target_subdir
-dnl plus
-dnl - the variables in GLIBCXX_CHECK_HOST / configure.host
-dnl - default settings for all AM_CONFITIONAL test variables
-dnl - lots of tools, like CC and CXX
-dnl
-AC_DEFUN(GLIBCXX_CONFIGURE, [
- # Keep these sync'd with the list in Makefile.am. The first provides an
- # expandable list at autoconf time; the second provides an expandable list
- # (i.e., shell variable) at configure time.
- m4_define([glibcxx_SUBDIRS],[include libmath libsupc++ src po testsuite])
- SUBDIRS='glibcxx_SUBDIRS'
-
- # These need to be absolute paths, yet at the same time need to
- # canonicalize only relative paths, because then amd will not unmount
- # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
- glibcxx_builddir=`${PWDCMD-pwd}`
- case $srcdir in
- [\\/$]* | ?:[\\/]*) glibcxx_srcdir=${srcdir} ;;
- *) glibcxx_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
- esac
- toplevel_srcdir=${glibcxx_srcdir}/..
- AC_SUBST(glibcxx_builddir)
- AC_SUBST(glibcxx_srcdir)
- AC_SUBST(toplevel_srcdir)
-
- # We use these options to decide which functions to include. They are
- # set from the top level.
- AC_ARG_WITH([target-subdir],
- AC_HELP_STRING([--with-target-subdir=SUBDIR],
- [configuring in a subdirectory]))
-
- AC_ARG_WITH([cross-host],
- AC_HELP_STRING([--with-cross-host=HOST],
- [configuring with a cross compiler]))
-
- AC_ARG_WITH([newlib],
- AC_HELP_STRING([--with-newlib],
- [assume newlib as a system C library]))
-
- # We're almost certainly being configured before anything else which uses
- # C++, so all of our AC_PROG_* discoveries will be cached. It's vital that
- # we not cache the value of CXX that we "discover" here, because it's set
- # to something unique for us and libjava. Other target libraries need to
- # find CXX for themselves. We yank the rug out from under the normal AC_*
- # process by sneakily renaming the cache variable. This also lets us debug
- # the value of "our" CXX in postmortems.
- #
- # We must also force CXX to /not/ be a precious variable, otherwise the
- # wrong (non-multilib-adjusted) value will be used in multilibs. This
- # little trick also affects CPPFLAGS, CXXFLAGS, and LDFLAGS. And as a side
- # effect, CXXFLAGS is no longer automagically subst'd, so we have to do
- # that ourselves. Un-preciousing AC_PROG_CC also affects CC and CFLAGS.
- #
- # -fno-builtin must be present here so that a non-conflicting form of
- # std::exit can be guessed by AC_PROG_CXX, and used in later tests.
-
- m4_define([ac_cv_prog_CXX],[glibcxx_cv_prog_CXX])
- m4_rename([_AC_ARG_VAR_PRECIOUS],[glibcxx_PRECIOUS])
- m4_define([_AC_ARG_VAR_PRECIOUS],[])
- save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -fno-builtin"
- AC_PROG_CC
- AC_PROG_CXX
- CXXFLAGS="$save_CXXFLAGS"
- m4_rename([glibcxx_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
- AC_SUBST(CFLAGS)
- AC_SUBST(CXXFLAGS)
-
- # For directory versioning (e.g., headers) and other variables.
- AC_MSG_CHECKING([for GCC version number])
- gcc_version=`$CXX -dumpversion`
- AC_MSG_RESULT($gcc_version)
-
- # Will set LN_S to either 'ln -s', 'ln', or 'cp -p' (if linking isn't
- # available). Uncomment the next line to force a particular method.
- AC_PROG_LN_S
- #LN_S='cp -p'
-
- AC_CHECK_TOOL(AS, as)
- AC_CHECK_TOOL(AR, ar)
- AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
-
- AM_MAINTAINER_MODE
-
- # Set up safe default values for all subsequent AM_CONDITIONAL tests
- # which are themselves conditionally expanded.
- ## (Right now, this only matters for enable_wchar_t, but nothing prevents
- ## other macros from doing the same. This should be automated.) -pme
- need_libmath=no
- enable_wchar_t=no
- #enable_libstdcxx_debug=no
- #enable_libstdcxx_pch=no
- #enable_cheaders=c
- #c_compatibility=no
- #enable_abi_check=no
- #enable_symvers=no
- #enable_hosted_libstdcxx=yes
-
- # Find platform-specific directories containing configuration info.
- # Also possibly modify flags used elsewhere, as needed by the platform.
- GLIBCXX_CHECK_HOST
-])
-
-
-m4_include([linkage.m4])
-m4_include([../config/no-executables.m4])
-
-
-dnl
-dnl Tests for newer compiler features, or features that are present in newer
-dnl compiler versions but not older compiler versions still in use, should
-dnl be placed here.
-dnl
-dnl Defines:
-dnl WERROR='-Werror' if requested and possible; g++'s that lack the
-dnl new inlining code or the new system_header pragma will die on -Werror.
-dnl Leave it out by default and use maint-mode to use it.
-dnl SECTION_FLAGS='-ffunction-sections -fdata-sections' if
-dnl compiler supports it and the user has not requested debug mode.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_COMPILER_FEATURES, [
- # All these tests are for C++; save the language and the compiler flags.
- # The CXXFLAGS thing is suspicious, but based on similar bits previously
- # found in GLIBCXX_CONFIGURE.
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- ac_test_CXXFLAGS="${CXXFLAGS+set}"
- ac_save_CXXFLAGS="$CXXFLAGS"
-
- # Check for maintainer-mode bits.
- if test x"$USE_MAINTAINER_MODE" = xno; then
- WERROR=''
- else
- WERROR='-Werror'
- fi
-
- # Check for -ffunction-sections -fdata-sections
- AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
- CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
- AC_TRY_COMPILE(, [int foo;], [ac_fdsections=yes], [ac_fdsections=no])
- if test "$ac_test_CXXFLAGS" = set; then
- CXXFLAGS="$ac_save_CXXFLAGS"
- else
- # this is the suspicious part
- CXXFLAGS=''
- fi
- if test x"$ac_fdsections" = x"yes"; then
- SECTION_FLAGS='-ffunction-sections -fdata-sections'
- fi
- AC_MSG_RESULT($ac_fdsections)
-
- AC_LANG_RESTORE
- AC_SUBST(WERROR)
- AC_SUBST(SECTION_FLAGS)
-])
-
-
-dnl
-dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
-dnl the native linker is in use, all variables will be defined to something
-dnl safe (like an empty string).
-dnl
-dnl Defines:
-dnl SECTION_LDFLAGS='-Wl,--gc-sections' if possible
-dnl OPT_LDFLAGS='-Wl,-O1' if possible
-dnl LD (as a side effect of testing)
-dnl Sets:
-dnl with_gnu_ld
-dnl glibcxx_gnu_ld_version (possibly)
-dnl
-dnl The last will be a single integer, e.g., version 1.23.45.0.67.89 will
-dnl set glibcxx_gnu_ld_version to 12345. Zeros cause problems.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_LINKER_FEATURES, [
- # If we're not using GNU ld, then there's no point in even trying these
- # tests. Check for that first. We should have already tested for gld
- # by now (in libtool), but require it now just to be safe...
- test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
- test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
- AC_REQUIRE([AC_PROG_LD])
- AC_REQUIRE([AC_PROG_AWK])
-
- # The name set by libtool depends on the version of libtool. Shame on us
- # for depending on an impl detail, but c'est la vie. Older versions used
- # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
- # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
- # makes sense). We'll test with_gnu_ld everywhere else, so if that isn't
- # set (hence we're using an older libtool), then set it.
- if test x${with_gnu_ld+set} != xset; then
- if test x${ac_cv_prog_gnu_ld+set} != xset; then
- # We got through "ac_require(ac_prog_ld)" and still not set? Huh?
- with_gnu_ld=no
- else
- with_gnu_ld=$ac_cv_prog_gnu_ld
- fi
- fi
-
- # Start by getting the version number. I think the libtool test already
- # does some of this, but throws away the result.
- changequote(,)
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- changequote([,])
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
-
- # Set --gc-sections.
- if test "$with_gnu_ld" = "notbroken"; then
- # GNU ld it is! Joy and bunny rabbits!
-
- # All these tests are for C++; save the language and the compiler flags.
- # Need to do this so that g++ won't try to link in libstdc++
- ac_test_CFLAGS="${CFLAGS+set}"
- ac_save_CFLAGS="$CFLAGS"
- CFLAGS='-x c++ -Wl,--gc-sections'
-
- # Check for -Wl,--gc-sections
- # XXX This test is broken at the moment, as symbols required for linking
- # are now in libsupc++ (not built yet). In addition, this test has
- # cored on solaris in the past. In addition, --gc-sections doesn't
- # really work at the moment (keeps on discarding used sections, first
- # .eh_frame and now some of the glibc sections for iconv).
- # Bzzzzt. Thanks for playing, maybe next time.
- AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
- AC_TRY_RUN([
- int main(void)
- {
- try { throw 1; }
- catch (...) { };
- return 0;
- }
- ], [ac_sectionLDflags=yes],[ac_sectionLDflags=no], [ac_sectionLDflags=yes])
- if test "$ac_test_CFLAGS" = set; then
- CFLAGS="$ac_save_CFLAGS"
- else
- # this is the suspicious part
- CFLAGS=''
- fi
- if test "$ac_sectionLDflags" = "yes"; then
- SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
- fi
- AC_MSG_RESULT($ac_sectionLDflags)
- fi
-
- # Set linker optimization flags.
- if test x"$with_gnu_ld" = x"yes"; then
- OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
- fi
-
- AC_SUBST(SECTION_LDFLAGS)
- AC_SUBST(OPT_LDFLAGS)
-])
-
-
-dnl
-dnl Check to see if this target can enable the wchar_t parts.
-dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
-dnl must have been previously checked.) By default, wide characters are
-dnl disabled.
-dnl
-dnl Defines:
-dnl HAVE_MBSTATE_T if mbstate_t is not in wchar.h
-dnl _GLIBCXX_USE_WCHAR_T if all the bits are found.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_WCHAR_T_SUPPORT, [
- # Test wchar.h for mbstate_t, which is needed for char_traits and
- # others even if wchar_t support is not on.
- AC_MSG_CHECKING([for mbstate_t])
- AC_TRY_COMPILE([#include <wchar.h>],
- [mbstate_t teststate;],
- have_mbstate_t=yes, have_mbstate_t=no)
- AC_MSG_RESULT($have_mbstate_t)
- if test x"$have_mbstate_t" = xyes; then
- AC_DEFINE(HAVE_MBSTATE_T)
- fi
-
- # Sanity check for existence of ISO C99 headers for extended encoding.
- AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
- AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
-
- # Only continue checking if the ISO C99 headers exist and support is on.
- if test x"$ac_has_wchar_h" = xyes &&
- test x"$ac_has_wctype_h" = xyes &&
- test x"$enable_c_mbchar" != xno; then
-
- # Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
- # numeric_limits can instantiate type_traits<wchar_t>
- AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
- AC_TRY_COMPILE([#include <wchar.h>],
- [int i = WCHAR_MIN; int j = WCHAR_MAX;],
- has_wchar_minmax=yes, has_wchar_minmax=no)
- AC_MSG_RESULT($has_wchar_minmax)
-
- # Test wchar.h for WEOF, which is what we use to determine whether
- # to specialize for char_traits<wchar_t> or not.
- AC_MSG_CHECKING([for WEOF])
- AC_TRY_COMPILE([
- #include <wchar.h>
- #include <stddef.h>],
- [wint_t i = WEOF;],
- has_weof=yes, has_weof=no)
- AC_MSG_RESULT($has_weof)
-
- # Tests for wide character functions used in char_traits<wchar_t>.
- ac_wfuncs=yes
- AC_CHECK_FUNCS([wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset],
- [],[ac_wfuncs=no])
-
- # Checks for names injected into std:: by the c_std headers.
- AC_CHECK_FUNCS([btowc wctob fgetwc fgetws fputwc fputws fwide \
- fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
- vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
- mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
- wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
- wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr],
- [],[ac_wfuncs=no])
-
- AC_MSG_CHECKING([for ISO C99 wchar_t support])
- if test x"$has_weof" = xyes &&
- test x"$has_wchar_minmax" = xyes &&
- test x"$ac_wfuncs" = xyes;
- then
- ac_isoC99_wchar_t=yes
- else
- ac_isoC99_wchar_t=no
- fi
- AC_MSG_RESULT($ac_isoC99_wchar_t)
-
- # Use iconv for wchar_t to char conversions. As such, check for
- # X/Open Portability Guide, version 2 features (XPG2).
- AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
- AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
-
- # Check for existence of libiconv.a providing XPG2 wchar_t support.
- AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
- ac_save_LIBS="$LIBS"
- LIBS="$LIBS $libiconv"
-
- AC_CHECK_FUNCS([iconv_open iconv_close iconv nl_langinfo],
- [ac_XPG2funcs=yes], [ac_XPG2funcs=no])
-
- LIBS="$ac_save_LIBS"
-
- AC_MSG_CHECKING([for XPG2 wchar_t support])
- if test x"$ac_has_iconv_h" = xyes &&
- test x"$ac_has_langinfo_h" = xyes &&
- test x"$ac_XPG2funcs" = xyes;
- then
- ac_XPG2_wchar_t=yes
- else
- ac_XPG2_wchar_t=no
- fi
- AC_MSG_RESULT($ac_XPG2_wchar_t)
-
- # At the moment, only enable wchar_t specializations if all the
- # above support is present.
- if test x"$ac_isoC99_wchar_t" = xyes &&
- test x"$ac_XPG2_wchar_t" = xyes;
- then
- AC_DEFINE(_GLIBCXX_USE_WCHAR_T)
- enable_wchar_t=yes
- fi
- fi
- AC_MSG_CHECKING([for enabled wchar_t specializations])
- AC_MSG_RESULT($enable_wchar_t)
-])
-
-
-dnl
-dnl Check for headers for, and arguments to, the setrlimit() function.
-dnl Used only in testsuite_hooks.h. Called from GLIBCXX_CONFIGURE_TESTSUITE.
-dnl
-dnl Defines:
-dnl _GLIBCXX_MEM_LIMITS if we can set artificial limits on memory
-dnl various HAVE_MEMLIMIT_* for individual limit names
-dnl
-AC_DEFUN(GLIBCXX_CHECK_SETRLIMIT_ancilliary, [
- AC_TRY_COMPILE(
- [#include <unistd.h>
- #include <sys/time.h>
- #include <sys/resource.h>
- ],
- [ int f = RLIMIT_$1 ; ],
- [glibcxx_mresult=1], [glibcxx_mresult=0])
- AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcxx_mresult,
- [Only used in build directory testsuite_hooks.h.])
-])
-
-AC_DEFUN(GLIBCXX_CHECK_SETRLIMIT, [
- setrlimit_have_headers=yes
- AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
- [],
- [setrlimit_have_headers=no])
- # If don't have the headers, then we can't run the tests now, and we
- # won't be seeing any of these during testsuite compilation.
- if test $setrlimit_have_headers = yes; then
- # Can't do these in a loop, else the resulting syntax is wrong.
- GLIBCXX_CHECK_SETRLIMIT_ancilliary(DATA)
- GLIBCXX_CHECK_SETRLIMIT_ancilliary(RSS)
- GLIBCXX_CHECK_SETRLIMIT_ancilliary(VMEM)
- GLIBCXX_CHECK_SETRLIMIT_ancilliary(AS)
-
- # Check for rlimit, setrlimit.
- AC_CACHE_VAL(ac_setrlimit, [
- AC_TRY_COMPILE(
- [#include <unistd.h>
- #include <sys/time.h>
- #include <sys/resource.h>
- ],
- [struct rlimit r;
- setrlimit(0, &r);],
- [ac_setrlimit=yes], [ac_setrlimit=no])
- ])
- fi
-
- AC_MSG_CHECKING([for testsuite memory limit support])
- if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
- ac_mem_limits=yes
- AC_DEFINE(_GLIBCXX_MEM_LIMITS)
- else
- ac_mem_limits=no
- fi
- AC_MSG_RESULT($ac_mem_limits)
-])
-
-
-dnl
-dnl Check whether S_ISREG (Posix) or S_IFREG is available in <sys/stat.h>.
-dnl Define HAVE_S_ISREG / HAVE_S_IFREG appropriately.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_S_ISREG_OR_S_IFREG, [
- AC_CACHE_VAL(glibcxx_cv_S_ISREG, [
- AC_TRY_LINK(
- [#include <sys/stat.h>],
- [struct stat buffer;
- fstat(0, &buffer);
- S_ISREG(buffer.st_mode);],
- [glibcxx_cv_S_ISREG=yes],
- [glibcxx_cv_S_ISREG=no])
- ])
- AC_CACHE_VAL(glibcxx_cv_S_IFREG, [
- AC_TRY_LINK(
- [#include <sys/stat.h>],
- [struct stat buffer;
- fstat(0, &buffer);
- S_IFREG & buffer.st_mode;],
- [glibcxx_cv_S_IFREG=yes],
- [glibcxx_cv_S_IFREG=no])
- ])
- if test $glibcxx_cv_S_ISREG = yes; then
- AC_DEFINE(HAVE_S_ISREG)
- elif test $glibcxx_cv_S_IFREG = yes; then
- AC_DEFINE(HAVE_S_IFREG)
- fi
-])
-
-
-dnl
-dnl Check whether poll is available in <poll.h>, and define HAVE_POLL.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_POLL, [
- AC_CACHE_VAL(glibcxx_cv_POLL, [
- AC_TRY_COMPILE(
- [#include <poll.h>],
- [struct pollfd pfd[1];
- pfd[0].events = POLLIN;
- poll(pfd, 1, 0);],
- [glibcxx_cv_POLL=yes],
- [glibcxx_cv_POLL=no])
- ])
- if test $glibcxx_cv_POLL = yes; then
- AC_DEFINE(HAVE_POLL)
- fi
-])
-
-
-dnl
-dnl Check whether writev is available in <sys/uio.h>, and define HAVE_WRITEV.
-dnl
-AC_DEFUN(GLIBCXX_CHECK_WRITEV, [
- AC_CACHE_VAL(glibcxx_cv_WRITEV, [
- AC_TRY_COMPILE(
- [#include <sys/uio.h>],
- [struct iovec iov[2];
- writev(0, iov, 0);],
- [glibcxx_cv_WRITEV=yes],
- [glibcxx_cv_WRITEV=no])
- ])
- if test $glibcxx_cv_WRITEV = yes; then
- AC_DEFINE(HAVE_WRITEV)
- fi
-])
-
-
-dnl
-dnl Does any necessary configuration of the testsuite directory. Generates
-dnl the testsuite_hooks.h header.
-dnl
-dnl GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE must be done before this.
-dnl
-dnl Sets:
-dnl enable_abi_check / GLIBCXX_TEST_ABI
-dnl Substs:
-dnl baseline_dir
-dnl
-AC_DEFUN(GLIBCXX_CONFIGURE_TESTSUITE, [
- if $GLIBCXX_IS_NATIVE && test $is_hosted = yes; then
- # Do checks for memory limit functions.
- GLIBCXX_CHECK_SETRLIMIT
-
- # Look for setenv, so that extended locale tests can be performed.
- GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
- fi
-
- # Export file names for ABI checking.
- baseline_dir="$glibcxx_srcdir/config/abi/${abi_baseline_pair}\$(MULTISUBDIR)"
- AC_SUBST(baseline_dir)
-
- # Determine if checking the ABI is desirable.
- if test $enable_symvers = no || test $is_hosted = no; then
- enable_abi_check=no
- else
- case "$host" in
- *-*-cygwin*)
- enable_abi_check=no ;;
- *)
- enable_abi_check=yes ;;
- esac
- fi
-
- GLIBCXX_CONDITIONAL(GLIBCXX_TEST_WCHAR_T, test $enable_wchar_t = yes)
- GLIBCXX_CONDITIONAL(GLIBCXX_TEST_ABI, test $enable_abi_check = yes)
-])
-
-
-dnl
-dnl Set up *_INCLUDES variables for all sundry Makefile.am's.
-dnl
-dnl Substs:
-dnl GLIBCXX_INCLUDES
-dnl TOPLEVEL_INCLUDES
-dnl
-AC_DEFUN(GLIBCXX_EXPORT_INCLUDES, [
- # Used for every C++ compile we perform.
- GLIBCXX_INCLUDES="\
--I$glibcxx_builddir/include/$host_alias \
--I$glibcxx_builddir/include \
--I$glibcxx_srcdir/libsupc++"
-
- # For Canadian crosses, pick this up too.
- if test $CANADIAN = yes; then
- GLIBCXX_INCLUDES="$GLIBCXX_INCLUDES '-I${includedir}'"
- fi
-
- # Stuff in the actual top level. Currently only used by libsupc++ to
- # get unwind* headers from the gcc dir.
- #TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/gcc -I$(toplevel_srcdir)/include'
- TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/gcc'
-
- # Now, export this to all the little Makefiles....
- AC_SUBST(GLIBCXX_INCLUDES)
- AC_SUBST(TOPLEVEL_INCLUDES)
-])
-
-
-dnl
-dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
-dnl (SECTION_FLAGS is done under CHECK_COMPILER_FEATURES.)
-dnl
-dnl Substs:
-dnl OPTIMIZE_CXXFLAGS
-dnl WARN_FLAGS
-dnl
-AC_DEFUN(GLIBCXX_EXPORT_FLAGS, [
- # Optimization flags that are probably a good idea for thrill-seekers. Just
- # uncomment the lines below and make, everything else is ready to go...
- # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
- OPTIMIZE_CXXFLAGS=
- AC_SUBST(OPTIMIZE_CXXFLAGS)
-
- WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings'
- AC_SUBST(WARN_FLAGS)
-])
-
-
-dnl
-dnl All installation directory information is determined here.
-dnl
-dnl Substs:
-dnl gxx_install_dir
-dnl glibcxx_prefixdir
-dnl glibcxx_toolexecdir
-dnl glibcxx_toolexeclibdir
-dnl
-dnl Assumes cross_compiling bits already done, and with_cross_host in
-dnl particular.
-dnl
-AC_DEFUN(GLIBCXX_EXPORT_INSTALL_INFO, [
- glibcxx_toolexecdir=no
- glibcxx_toolexeclibdir=no
- glibcxx_prefixdir=$prefix
-
- AC_MSG_CHECKING([for gxx-include-dir])
- AC_ARG_WITH([gxx-include-dir],
- AC_HELP_STRING([--with-gxx-include-dir=DIR],
- [installation directory for include files]),
- [case "$withval" in
- yes) AC_MSG_ERROR([Missing directory for --with-gxx-include-dir]) ;;
- no) gxx_include_dir=no ;;
- *) gxx_include_dir=$withval ;;
- esac],
- [gxx_include_dir=no])
- AC_MSG_RESULT($gxx_include_dir)
-
- AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
- AC_ARG_ENABLE([version-specific-runtime-libs],
- AC_HELP_STRING([--enable-version-specific-runtime-libs],
- [Specify that runtime libraries should be installed in a compiler-specific directory]),
- [case "$enableval" in
- yes) version_specific_libs=yes ;;
- no) version_specific_libs=no ;;
- *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
- esac],
- [version_specific_libs=no])
- AC_MSG_RESULT($version_specific_libs)
-
- # Default case for install directory for include files.
- if test $version_specific_libs = no && test $gxx_include_dir = no; then
- gxx_include_dir='${prefix}'/include/c++/${gcc_version}
- fi
-
- # Version-specific runtime libs processing.
- if test $version_specific_libs = yes; then
- # Need the gcc compiler version to know where to install libraries
- # and header files if --enable-version-specific-runtime-libs option
- # is selected.
- if test x"$gxx_include_dir" = x"no"; then
- gxx_include_dir='${libdir}/gcc-lib/${host_alias}/'$gcc_version/include/c++
- fi
- glibcxx_toolexecdir='${libdir}/gcc-lib/${host_alias}'
- glibcxx_toolexeclibdir='${toolexecdir}/'$gcc_version'$(MULTISUBDIR)'
- fi
-
- # Calculate glibcxx_toolexecdir, glibcxx_toolexeclibdir
- # Install a library built with a cross compiler in tooldir, not libdir.
- if test x"$glibcxx_toolexecdir" = x"no"; then
- if test -n "$with_cross_host" &&
- test x"$with_cross_host" != x"no"; then
- glibcxx_toolexecdir='${exec_prefix}/${host_alias}'
- glibcxx_toolexeclibdir='${toolexecdir}/lib'
- else
- glibcxx_toolexecdir='${libdir}/gcc-lib/${host_alias}'
- glibcxx_toolexeclibdir='${libdir}'
- fi
- multi_os_directory=`$CXX -print-multi-os-directory`
- case $multi_os_directory in
- .) ;; # Avoid trailing /.
- *) glibcxx_toolexeclibdir=$glibcxx_toolexeclibdir/$multi_os_directory ;;
- esac
- fi
-
- AC_MSG_CHECKING([for install location])
- AC_MSG_RESULT($gxx_include_dir)
-
- AC_SUBST(glibcxx_prefixdir)
- AC_SUBST(gxx_include_dir)
- AC_SUBST(glibcxx_toolexecdir)
- AC_SUBST(glibcxx_toolexeclibdir)
-])
-
-
-dnl
-dnl GLIBCXX_ENABLE
-dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING)
-dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c)
-dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER)
-dnl
-dnl See docs/html/17_intro/configury.html#enable for documentation.
-dnl
-m4_define([GLIBCXX_ENABLE],[dnl
-m4_define([_g_switch],[--enable-$1])dnl
-m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])])dnl
- AC_ARG_ENABLE($1,_g_help,
- m4_bmatch([$5],
- [^permit ],
- [[
- case "$enableval" in
- m4_bpatsubst([$5],[permit ])) ;;
- *) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;;
- dnl Idea for future: generate a URL pointing to
- dnl "onlinedocs/configopts.html#whatever"
- esac
- ]],
- [^$],
- [[
- case "$enableval" in
- yes|no) ;;
- *) AC_MSG_ERROR(Argument to enable/disable $1 must be yes or no) ;;
- esac
- ]],
- [[$5]]),
- [enable_]m4_bpatsubst([$1],-,_)[=][$2])
-m4_undefine([_g_switch])dnl
-m4_undefine([_g_help])dnl
-])
-
-
-dnl
-dnl Check for ISO/IEC 9899:1999 "C99" support.
-dnl
-dnl --enable-c99 defines _GLIBCXX_USE_C99
-dnl --disable-c99 leaves _GLIBCXX_USE_C99 undefined
-dnl + Usage: GLIBCXX_ENABLE_C99[(DEFAULT)]
-dnl Where DEFAULT is either `yes' or `no'.
-dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_C99, [
- GLIBCXX_ENABLE(c99,$1,,[turns on ISO/IEC 9899:1999 support])
-
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
-
- # Check for the existence of <math.h> functions used if C99 is enabled.
- ac_c99_math=yes;
- AC_MSG_CHECKING([for ISO C99 support in <math.h>])
- AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],
- [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],
- [islessgreater(0.0,0.0);],, [ac_c99_math=no])
- AC_TRY_COMPILE([#include <math.h>],
- [isunordered(0.0,0.0);],, [ac_c99_math=no])
- AC_MSG_RESULT($ac_c99_math)
-
- # Check for the existence in <stdio.h> of vscanf, et. al.
- ac_c99_stdio=yes;
- AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
- AC_TRY_COMPILE([#include <stdio.h>],
- [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
- AC_TRY_COMPILE([#include <stdio.h>
- #include <stdarg.h>
- void foo(char* fmt, ...)
- {va_list args; va_start(args, fmt);
- vfscanf(stderr, "%i", args);}],
- [],, [ac_c99_stdio=no])
- AC_TRY_COMPILE([#include <stdio.h>
- #include <stdarg.h>
- void foo(char* fmt, ...)
- {va_list args; va_start(args, fmt);
- vscanf("%i", args);}],
- [],, [ac_c99_stdio=no])
- AC_TRY_COMPILE([#include <stdio.h>
- #include <stdarg.h>
- void foo(char* fmt, ...)
- {va_list args; va_start(args, fmt);
- vsnprintf(fmt, 0, "%i", args);}],
- [],, [ac_c99_stdio=no])
- AC_TRY_COMPILE([#include <stdio.h>
- #include <stdarg.h>
- void foo(char* fmt, ...)
- {va_list args; va_start(args, fmt);
- vsscanf(fmt, "%i", args);}],
- [],, [ac_c99_stdio=no])
- AC_MSG_RESULT($ac_c99_stdio)
-
- # Check for the existence in <stdlib.h> of lldiv_t, et. al.
- ac_c99_stdlib=yes;
- AC_MSG_CHECKING([for lldiv_t declaration])
- AC_CACHE_VAL(ac_c99_lldiv_t, [
- AC_TRY_COMPILE([#include <stdlib.h>],
- [ lldiv_t mydivt;],
- [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
- ])
- AC_MSG_RESULT($ac_c99_lldiv_t)
-
- AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
- AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
- AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
- AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
- AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
- if test x"$ac_c99_lldiv_t" = x"no"; then
- ac_c99_stdlib=no;
- fi;
- AC_MSG_RESULT($ac_c99_stdlib)
-
- # Check for the existence of <wchar.h> functions used if C99 is enabled.
- # XXX the wchar.h checks should be rolled into the general C99 bits.
- ac_c99_wchar=yes;
- AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
- AC_TRY_COMPILE([#include <wchar.h>],
- [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
- AC_TRY_COMPILE([#include <wchar.h>],
- [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
- AC_TRY_COMPILE([#include <wchar.h>],
- [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
- AC_MSG_RESULT($ac_c99_wchar)
-
- AC_MSG_CHECKING([for enabled ISO C99 support])
- if test x"$ac_c99_math" = x"no" ||
- test x"$ac_c99_stdio" = x"no" ||
- test x"$ac_c99_stdlib" = x"no" ||
- test x"$ac_c99_wchar" = x"no"; then
- enable_c99=no;
- fi;
- AC_MSG_RESULT($enable_c99)
-
- # Option parsed, now set things appropriately
- if test x"$enable_c99" = x"yes"; then
- AC_DEFINE(_GLIBCXX_USE_C99)
- fi
-
- AC_LANG_RESTORE
-])
-
-
-dnl
-dnl Check for what type of C headers to use.
-dnl
-dnl --enable-cheaders= [does stuff].
-dnl --disable-cheaders [does not do anything, really].
-dnl + Usage: GLIBCXX_ENABLE_CHEADERS[(DEFAULT)]
-dnl Where DEFAULT is either `c' or `c_std'.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_CHEADERS, [
- GLIBCXX_ENABLE(cheaders,$1,[=KIND],
- [construct "C" headers for g++], [permit c|c_std])
- AC_MSG_NOTICE("C" header strategy set to $enable_cheaders)
-
- C_INCLUDE_DIR='${glibcxx_srcdir}/include/'$enable_cheaders
-
- AC_SUBST(C_INCLUDE_DIR)
- GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C, test $enable_cheaders = c)
- GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C_STD, test $enable_cheaders = c_std)
- GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_COMPATIBILITY, test $c_compatibility = yes)
-])
-
-
-dnl
-dnl Check for which locale library to use. The choice is mapped to
-dnl a subdirectory of config/locale.
-dnl
-dnl Default is generic.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_CLOCALE, [
- AC_MSG_CHECKING([for C locale to use])
- GLIBCXX_ENABLE(clocale,auto,[@<:@=MODEL@:>@],
- [use MODEL for target locale package],
- [permit generic|gnu|ieee_1003.1-2001|yes|no|auto])
-
- # If they didn't use this option switch, or if they specified --enable
- # with no specific model, we'll have to look for one. If they
- # specified --disable (???), do likewise.
- if test $enable_clocale = no || test $enable_clocale = yes; then
- enable_clocale=auto
- fi
-
- # Either a known package, or "auto"
- enable_clocale_flag=$enable_clocale
-
- # Probe for locale support if no specific model is specified.
- # Default to "generic".
- if test $enable_clocale_flag = auto; then
- case x${target_os} in
- xlinux* | xgnu*)
- AC_EGREP_CPP([_GLIBCXX_ok], [
- #include <features.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
- _GLIBCXX_ok
- #endif
- ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
-
- # Test for bugs early in glibc-2.2.x series
- if test x$enable_clocale_flag = xgnu; then
- AC_TRY_RUN([
- #define _GNU_SOURCE 1
- #include <locale.h>
- #include <string.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- extern __typeof(newlocale) __newlocale;
- extern __typeof(duplocale) __duplocale;
- extern __typeof(strcoll_l) __strcoll_l;
- #endif
- int main()
- {
- const char __one[] = "Äuglein Augmen";
- const char __two[] = "Äuglein";
- int i;
- int j;
- __locale_t loc;
- __locale_t loc_dup;
- loc = __newlocale(1 << LC_ALL, "de_DE", 0);
- loc_dup = __duplocale(loc);
- i = __strcoll_l(__one, __two, loc);
- j = __strcoll_l(__one, __two, loc_dup);
- return 0;
- }
- ],
- [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
- [enable_clocale_flag=generic])
- fi
-
- # ... at some point put __strxfrm_l tests in as well.
- ;;
- *)
- enable_clocale_flag=generic
- ;;
- esac
- fi
-
- # Deal with gettext issues. Default to not using it (=no) until we detect
- # support for it later. Let the user turn it off via --e/d, but let that
- # default to on for easier handling.
- USE_NLS=no
- AC_ARG_ENABLE(nls,
- AC_HELP_STRING([--enable-nls],[use Native Language Support (default)]),
- [],
- [enable_nls=yes])
-
- # Set configure bits for specified locale package
- case ${enable_clocale_flag} in
- generic)
- AC_MSG_RESULT(generic)
-
- CLOCALE_H=config/locale/generic/c_locale.h
- CLOCALE_CC=config/locale/generic/c_locale.cc
- CCODECVT_H=config/locale/generic/codecvt_specializations.h
- CCODECVT_CC=config/locale/generic/codecvt_members.cc
- CCOLLATE_CC=config/locale/generic/collate_members.cc
- CCTYPE_CC=config/locale/generic/ctype_members.cc
- CMESSAGES_H=config/locale/generic/messages_members.h
- CMESSAGES_CC=config/locale/generic/messages_members.cc
- CMONEY_CC=config/locale/generic/monetary_members.cc
- CNUMERIC_CC=config/locale/generic/numeric_members.cc
- CTIME_H=config/locale/generic/time_members.h
- CTIME_CC=config/locale/generic/time_members.cc
- CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
- ;;
- gnu)
- AC_MSG_RESULT(gnu)
-
- # Declare intention to use gettext, and add support for specific
- # languages.
- # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
- ALL_LINGUAS="de fr"
-
- # Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
- AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
- if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
- USE_NLS=yes
- fi
- # Export the build objects.
- for ling in $ALL_LINGUAS; do \
- glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \
- glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \
- done
- AC_SUBST(glibcxx_MOFILES)
- AC_SUBST(glibcxx_POFILES)
-
- CLOCALE_H=config/locale/gnu/c_locale.h
- CLOCALE_CC=config/locale/gnu/c_locale.cc
- CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
- CCODECVT_CC=config/locale/gnu/codecvt_members.cc
- CCOLLATE_CC=config/locale/gnu/collate_members.cc
- CCTYPE_CC=config/locale/gnu/ctype_members.cc
- CMESSAGES_H=config/locale/gnu/messages_members.h
- CMESSAGES_CC=config/locale/gnu/messages_members.cc
- CMONEY_CC=config/locale/gnu/monetary_members.cc
- CNUMERIC_CC=config/locale/gnu/numeric_members.cc
- CTIME_H=config/locale/gnu/time_members.h
- CTIME_CC=config/locale/gnu/time_members.cc
- CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
- ;;
- ieee_1003.1-2001)
- AC_MSG_RESULT(IEEE 1003.1)
-
- CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
- CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
- CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
- CCODECVT_CC=config/locale/generic/codecvt_members.cc
- CCOLLATE_CC=config/locale/generic/collate_members.cc
- CCTYPE_CC=config/locale/generic/ctype_members.cc
- CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
- CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
- CMONEY_CC=config/locale/generic/monetary_members.cc
- CNUMERIC_CC=config/locale/generic/numeric_members.cc
- CTIME_H=config/locale/generic/time_members.h
- CTIME_CC=config/locale/generic/time_members.cc
- CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
- ;;
- esac
-
- # This is where the testsuite looks for locale catalogs, using the
- # -DLOCALEDIR define during testsuite compilation.
- glibcxx_localedir=${glibcxx_builddir}/po/share/locale
- AC_SUBST(glibcxx_localedir)
-
- # A standalone libintl (e.g., GNU libintl) may be in use.
- if test $USE_NLS = yes; then
- AC_CHECK_HEADERS([libintl.h], [], USE_NLS=no)
- AC_SEARCH_LIBS(gettext, intl, [], USE_NLS=no)
- fi
- if test $USE_NLS = yes; then
- AC_DEFINE(_GLIBCXX_USE_NLS)
- fi
-
- AC_SUBST(USE_NLS)
- AC_SUBST(CLOCALE_H)
- AC_SUBST(CCODECVT_H)
- AC_SUBST(CMESSAGES_H)
- AC_SUBST(CCODECVT_CC)
- AC_SUBST(CCOLLATE_CC)
- AC_SUBST(CCTYPE_CC)
- AC_SUBST(CMESSAGES_CC)
- AC_SUBST(CMONEY_CC)
- AC_SUBST(CNUMERIC_CC)
- AC_SUBST(CTIME_H)
- AC_SUBST(CTIME_CC)
- AC_SUBST(CLOCALE_CC)
- AC_SUBST(CLOCALE_INTERNAL_H)
-])
-
-
-dnl
-dnl Check for whether the Boost-derived checks should be turned on.
-dnl
-dnl --enable-concept-checks turns them on.
-dnl --disable-concept-checks leaves them off.
-dnl + Usage: GLIBCXX_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
-dnl Where DEFAULT is either `yes' or `no'.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_CONCEPT_CHECKS, [
- GLIBCXX_ENABLE(concept-checks,$1,,[use Boost-derived template checks])
- if test $enable_concept_checks = yes; then
- AC_DEFINE(_GLIBCXX_CONCEPT_CHECKS)
- fi
-])
-
-
-dnl
-dnl Check for which I/O library to use: stdio, or something specific.
-dnl
-dnl Default is stdio.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_CSTDIO, [
- AC_MSG_CHECKING([for underlying I/O to use])
- GLIBCXX_ENABLE(cstdio,stdio,[=PACKAGE],
- [use target-specific I/O package], [permit stdio])
-
- # Now that libio has been removed, you can have any color you want as long
- # as it's black. This is one big no-op until other packages are added, but
- # showing the framework never hurts.
- case ${enable_cstdio} in
- stdio)
- CSTDIO_H=config/io/c_io_stdio.h
- BASIC_FILE_H=config/io/basic_file_stdio.h
- BASIC_FILE_CC=config/io/basic_file_stdio.cc
- AC_MSG_RESULT(stdio)
- ;;
- esac
-
- dnl Set directory for fpos.h
- FPOS_H=$fpos_include_dir
-
- AC_SUBST(CSTDIO_H)
- AC_SUBST(FPOS_H)
- AC_SUBST(BASIC_FILE_H)
- AC_SUBST(BASIC_FILE_CC)
-])
-
-
-dnl
-dnl Check for "unusual" flags to pass to the compiler while building.
-dnl
-dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
-dnl experimental flags such as -fpch, -fIMI, -Dfloat=char, etc.
-dnl --disable-cxx-flags passes nothing.
-dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
-dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
-dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
-dnl + Usage: GLIBCXX_ENABLE_CXX_FLAGS(default flags)
-dnl If "default flags" is an empty string, the effect is the same
-dnl as --disable or --enable=no.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_CXX_FLAGS, [dnl
- AC_MSG_CHECKING([for extra compiler flags for building])
- GLIBCXX_ENABLE(cxx-flags,$1,[=FLAGS],
- [pass compiler FLAGS when building library],
- [case "x$enable_cxx_flags" in
- xno | x) enable_cxx_flags= ;;
- x-*) ;;
- *) AC_MSG_ERROR(_g_switch needs compiler flags as arguments) ;;
- esac])
-
- # Run through flags (either default or command-line) and set anything
- # extra (e.g., #defines) that must accompany particular g++ options.
- if test -n "$enable_cxx_flags"; then
- for f in $enable_cxx_flags; do
- case "$f" in
- -fhonor-std) ;;
- -*) ;;
- *) # and we're trying to pass /what/ exactly?
- AC_MSG_ERROR([compiler flags start with a -]) ;;
- esac
- done
- fi
-
- EXTRA_CXX_FLAGS="$enable_cxx_flags"
- AC_MSG_RESULT($EXTRA_CXX_FLAGS)
- AC_SUBST(EXTRA_CXX_FLAGS)
-])
-
-
-dnl
-dnl Check for wide character support. Has the same effect as the option
-dnl in gcc's configure, but in a form that autoconf can mess with.
-dnl
-dnl --enable-c-mbchar requests all the wchar_t stuff.
-dnl --disable-c-mbchar doesn't.
-dnl + Usage: GLIBCXX_ENABLE_C_MBCHAR[(DEFAULT)]
-dnl Where DEFAULT is either `yes' or `no'.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_C_MBCHAR, [
- GLIBCXX_ENABLE(c-mbchar,$1,,[enable multibyte (wide) characters])
- # Option parsed, now other scripts can test enable_c_mbchar for yes/no.
-])
-
-
-dnl
-dnl Check to see if debugging libraries are to be built.
-dnl
-dnl --enable-libstdcxx-debug
-dnl builds a separate set of debugging libraries in addition to the
-dnl normal (shared, static) libstdc++ binaries.
-dnl
-dnl --disable-libstdcxx-debug
-dnl builds only one (non-debug) version of libstdc++.
-dnl
-dnl --enable-libstdcxx-debug-flags=FLAGS
-dnl iff --enable-debug == yes, then use FLAGS to build the debug library.
-dnl
-dnl + Usage: GLIBCXX_ENABLE_DEBUG[(DEFAULT)]
-dnl Where DEFAULT is either `yes' or `no'.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_DEBUG, [
- AC_MSG_CHECKING([for additional debug build])
- GLIBCXX_ENABLE(libstdcxx-debug,$1,,[build extra debug library])
- AC_MSG_RESULT($enable_libstdcxx_debug)
- GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_DEBUG, test $enable_libstdcxx_debug = yes)
-])
-
-
-dnl
-dnl Check for explicit debug flags.
-dnl
-dnl --enable-libstdcxx-debug-flags='-O1'
-dnl is a general method for passing flags to be used when
-dnl building debug libraries with --enable-debug.
-dnl
-dnl --disable-libstdcxx-debug-flags does nothing.
-dnl + Usage: GLIBCXX_ENABLE_DEBUG_FLAGS(default flags)
-dnl If "default flags" is an empty string, the effect is the same
-dnl as --disable or --enable=no.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_DEBUG_FLAGS, [
- GLIBCXX_ENABLE(libstdcxx-debug-flags,[$1],[=FLAGS],
- [pass compiler FLAGS when building debug library],
- [case "x$enable_libstdcxx_debug_flags" in
- xno | x) enable_libstdcxx_debug_flags= ;;
- x-*) ;;
- *) AC_MSG_ERROR(_g_switch needs compiler flags as arguments) ;;
- esac])
-
- # Option parsed, now set things appropriately
- DEBUG_FLAGS="$enable_libstdcxx_debug_flags"
- AC_SUBST(DEBUG_FLAGS)
-
- AC_MSG_NOTICE([Debug build flags set to $DEBUG_FLAGS])
-])
-
-
-dnl
-dnl Check if the user only wants a freestanding library implementation.
-dnl
-dnl --disable-hosted-libstdcxx will turn off most of the library build,
-dnl installing only the headers required by [17.4.1.3] and the language
-dnl support library. More than that will be built (to keep the Makefiles
-dnl conveniently clean), but not installed.
-dnl
-dnl Sets:
-dnl is_hosted (yes/no)
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_HOSTED, [
- AC_ARG_ENABLE([hosted-libstdcxx],
- AC_HELP_STRING([--disable-hosted-libstdcxx],
- [only build freestanding C++ runtime support]),,
- [enable_hosted_libstdcxx=yes])
- if test "$enable_hosted_libstdcxx" = no; then
- AC_MSG_NOTICE([Only freestanding libraries will be built])
- is_hosted=no
- enable_abi_check=no
- enable_libstdcxx_pch=no
- else
- is_hosted=yes
- fi
- GLIBCXX_CONDITIONAL(GLIBCXX_HOSTED, test $is_hosted = yes)
-])
-
-
-dnl
-dnl Check for libunwind exception handling support. If enabled, then
-dnl we assume that the _Unwind_* functions that make up the Unwind ABI
-dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
-dnl libunwind instead of libgcc, and that libstdc++ has a dependency
-dnl on libunwind as well as libgcc.
-dnl
-dnl --enable-libunwind-exceptions forces the use of libunwind.
-dnl --disable-libunwind-exceptions assumes there is no libunwind.
-dnl
-dnl Substs:
-dnl LIBUNWIND_FLAG
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_LIBUNWIND_EXCEPTIONS, [
- AC_MSG_CHECKING([for use of libunwind])
- GLIBCXX_ENABLE(libunwind-exceptions,no,,
- [force use of libunwind for exceptions])
- AC_MSG_RESULT($use_libunwind_exceptions)
- if test $enable_libunwind_exceptions = yes; then
- LIBUNWIND_FLAG="-lunwind"
- else
- LIBUNWIND_FLAG=""
- fi
- AC_SUBST(LIBUNWIND_FLAG)
-])
-
-
-dnl
-dnl Check for template specializations for the 'long long' type extension.
-dnl The result determines only whether 'long long' I/O is enabled; things
-dnl like numeric_limits<> specializations are always available.
-dnl
-dnl --enable-long-long defines _GLIBCXX_USE_LONG_LONG
-dnl --disable-long-long leaves _GLIBCXX_USE_LONG_LONG undefined
-dnl + Usage: GLIBCXX_ENABLE_LONG_LONG[(DEFAULT)]
-dnl Where DEFAULT is either `yes' or `no'.
-dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_LONG_LONG, [
- GLIBCXX_ENABLE(long-long,$1,,[enables I/O support for 'long long'])
-
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
-
- AC_MSG_CHECKING([for enabled long long I/O support])
- # iostreams require strtoll, strtoull to compile
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
-
- # Option parsed, now set things appropriately
- if test $enable_long_long = yes; then
- AC_DEFINE(_GLIBCXX_USE_LONG_LONG)
- fi
- AC_MSG_RESULT($enable_long_long)
-
- AC_LANG_RESTORE
-])
-
-
-dnl
-dnl Check to see if building and using a C++ precompiled header can be done.
-dnl
-dnl --enable-libstdcxx-pch=yes
-dnl default, this shows intent to use stdc++.h.gch If it looks like it
-dnl may work, after some light-hearted attempts to puzzle out compiler
-dnl support, flip bits on in include/Makefile.am
-dnl
-dnl --disable-libstdcxx-pch
-dnl turns off attempts to use or build stdc++.h.gch.
-dnl
-dnl Substs:
-dnl glibcxx_PCHFLAGS
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_PCH, [
- AC_MSG_CHECKING([for enabled PCH])
- GLIBCXX_ENABLE(libstdcxx-pch,$1,,[build pre-compiled libstdc++ headers])
- AC_MSG_RESULT([$enable_libstdcxx_pch])
-
- if test $enable_libstdcxx_pch = yes; then
- AC_CACHE_CHECK([for compiler with PCH support],
- [glibcxx_cv_prog_CXX_pch],
- [ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -Werror -Winvalid-pch -Wno-deprecated"
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- echo '#include <math.h>' > conftest.h
- if $CXX $CXXFLAGS $CPPFLAGS -x c++-header conftest.h \
- -o conftest.h.gch 1>&5 2>&1 &&
- echo '#error "pch failed"' > conftest.h &&
- echo '#include "conftest.h"' > conftest.cc &&
- $CXX -c $CXXFLAGS $CPPFLAGS conftest.cc 1>&5 2>&1 ;
- then
- glibcxx_cv_prog_CXX_pch=yes
- else
- glibcxx_cv_prog_CXX_pch=no
- fi
- rm -f conftest*
- CXXFLAGS=$ac_save_CXXFLAGS
- AC_LANG_RESTORE
- ])
- enable_libstdcxx_pch=$glibcxx_cv_prog_CXX_pch
- fi
-
- GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_PCH, test $enable_libstdcxx_pch = yes)
- if test $enable_libstdcxx_pch = yes; then
- glibcxx_PCHFLAGS="-include bits/stdc++.h"
- else
- glibcxx_PCHFLAGS=""
- fi
- AC_SUBST(glibcxx_PCHFLAGS)
-])
-
-
-dnl
-dnl Check for exception handling support. If an explicit enable/disable
-dnl sjlj exceptions is given, we don't have to detect. Otherwise the
-dnl target may or may not support call frame exceptions.
-dnl
-dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
-dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
-dnl Neither one forces an attempt at detection.
-dnl
-dnl Defines:
-dnl _GLIBCXX_SJLJ_EXCEPTIONS if the compiler is configured for it
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_SJLJ_EXCEPTIONS, [
- AC_MSG_CHECKING([for exception model to use])
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- GLIBCXX_ENABLE(sjlj-exceptions,auto,,
- [force use of builtin_setjmp for exceptions],
- [permit yes|no|auto])
-
- if test $enable_sjlj_exceptions = auto; then
- # Botheration. Now we've got to detect the exception model. Link tests
- # against libgcc.a are problematic since we've not been given proper -L
- # bits for single-tree newlib and libgloss.
- #
- # Fake what AC_TRY_COMPILE does. XXX Look at redoing this new-style.
- cat > conftest.$ac_ext << EOF
-[#]line __oline__ "configure"
-struct S { ~S(); };
-void bar();
-void foo()
-{
- S s;
- bar();
-}
-EOF
- old_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS=-S
- if AC_TRY_EVAL(ac_compile); then
- if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=yes
- elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
- fi
- fi
- CXXFLAGS="$old_CXXFLAGS"
- rm -f conftest*
- fi
-
- # This is a tad weird, for hysterical raisins. We have to map enable/disable
- # to two different models.
- case $enable_sjlj_exceptions in
- yes)
- AC_DEFINE(_GLIBCXX_SJLJ_EXCEPTIONS, 1,
- [Define if the compiler is configured for setjmp/longjmp exceptions.])
- ac_exception_model_name=sjlj
- ;;
- no)
- ac_exception_model_name="call frame"
- ;;
- *)
- AC_MSG_ERROR([unable to detect exception model])
- ;;
- esac
- AC_LANG_RESTORE
- AC_MSG_RESULT($ac_exception_model_name)
-])
-
-
-dnl
-dnl Add version tags to symbols in shared library (or not), additionally
-dnl marking other symbols as private/local (or not).
-dnl
-dnl --enable-symvers=style adds a version script to the linker call when
-dnl creating the shared library. The choice of version script is
-dnl controlled by 'style'.
-dnl --disable-symvers does not.
-dnl + Usage: GLIBCXX_ENABLE_SYMVERS[(DEFAULT)]
-dnl Where DEFAULT is either 'yes' or 'no'. Passing `yes' tries to
-dnl choose a default style based on linker characteristics. Passing
-dnl 'no' disables versioning.
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_SYMVERS, [
-
-GLIBCXX_ENABLE(symvers,$1,[=STYLE],
- [enables symbol versioning of the shared library],
- [permit yes|no|gnu])
-
-# If we never went through the GLIBCXX_CHECK_LINKER_FEATURES macro, then we
-# don't know enough about $LD to do tricks...
-AC_REQUIRE([GLIBCXX_CHECK_LINKER_FEATURES])
-# FIXME The following test is too strict, in theory.
-if test $enable_shared = no ||
- test "x$LD" = x ||
- test x$glibcxx_gnu_ld_version = x; then
- enable_symvers=no
-fi
-
-# Check to see if libgcc_s exists, indicating that shared libgcc is possible.
-if test $enable_symvers != no; then
- AC_MSG_CHECKING([for shared libgcc])
- ac_save_CFLAGS="$CFLAGS"
- CFLAGS=' -lgcc_s'
- AC_TRY_LINK(, [return 0;], glibcxx_shared_libgcc=yes, glibcxx_shared_libgcc=no)
- CFLAGS="$ac_save_CFLAGS"
- AC_MSG_RESULT($glibcxx_shared_libgcc)
-fi
-
-# For GNU ld, we need at least this version. The format is described in
-# GLIBCXX_CHECK_LINKER_FEATURES above.
-glibcxx_min_gnu_ld_version=21400
-# XXXXXXXXXXX glibcxx_gnu_ld_version=21390
-
-# Check to see if unspecified "yes" value can win, given results above.
-# Change "yes" into either "no" or a style name.
-if test $enable_symvers = yes; then
- if test $with_gnu_ld = yes &&
- test $glibcxx_shared_libgcc = yes;
- then
- if test $glibcxx_gnu_ld_version -ge $glibcxx_min_gnu_ld_version ; then
- enable_symvers=gnu
- else
- # The right tools, the right setup, but too old. Fallbacks?
- AC_MSG_WARN(=== Linker version $glibcxx_gnu_ld_version is too old for)
- AC_MSG_WARN(=== full symbol versioning support in this release of GCC.)
- AC_MSG_WARN(=== You would need to upgrade your binutils to version)
- AC_MSG_WARN(=== $glibcxx_min_gnu_ld_version or later and rebuild GCC.)
- if test $glibcxx_gnu_ld_version -ge 21200 ; then
- # Globbing fix is present, proper block support is not.
- dnl AC_MSG_WARN([=== Dude, you are soooo close. Maybe we can fake it.])
- dnl enable_symvers=???
- AC_MSG_WARN([=== Symbol versioning will be disabled.])
- enable_symvers=no
- else
- # 2.11 or older.
- AC_MSG_WARN([=== Symbol versioning will be disabled.])
- enable_symvers=no
- fi
- fi
- else
- # just fail for now
- AC_MSG_WARN([=== You have requested some kind of symbol versioning, but])
- AC_MSG_WARN([=== either you are not using a supported linker, or you are])
- AC_MSG_WARN([=== not building a shared libgcc_s (which is required).])
- AC_MSG_WARN([=== Symbol versioning will be disabled.])
- enable_symvers=no
- fi
-fi
-
-# Everything parsed; figure out what file to use.
-case $enable_symvers in
- no)
- SYMVER_MAP=config/linker-map.dummy
- ;;
- gnu)
- SYMVER_MAP=config/linker-map.gnu
- AC_DEFINE(_GLIBCXX_SYMVER)
- ;;
-esac
+# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
-AC_SUBST(SYMVER_MAP)
-AC_SUBST(port_specific_symbol_files)
-GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
-AC_MSG_NOTICE(versioning on shared library symbols is $enable_symvers)
+# AM_AUTOMAKE_VERSION(VERSION)
+# ----------------------------
+# Automake X.Y traces this macro to ensure aclocal.m4 has been
+# generated from the m4 files accompanying Automake X.Y.
+# (This private macro should not be called outside this file.)
+AC_DEFUN([AM_AUTOMAKE_VERSION],
+[am__api_version='1.11'
+dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
+dnl require some minimum version. Point them to the right macro.
+m4_if([$1], [1.11.1], [],
+ [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
])
+# _AM_AUTOCONF_VERSION(VERSION)
+# -----------------------------
+# aclocal traces this macro to find the Autoconf version.
+# This is a private macro too. Using m4_define simplifies
+# the logic in aclocal, which can simply ignore this definition.
+m4_define([_AM_AUTOCONF_VERSION], [])
-dnl
-dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
-dnl We must stage the required headers so that they will be installed
-dnl with the library (unlike libgcc, the STL implementation is provided
-dnl solely within headers). Since we must not inject random user-space
-dnl macro names into user-provided C++ code, we first stage into <file>-in
-dnl and process to <file> with an output command. The reason for a two-
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-dnl
-dnl Substs:
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-dnl
-dnl Defines:
-dnl HAVE_GTHR_DEFAULT
-dnl _GLIBCXX_SUPPORTS_WEAK
-dnl
-AC_DEFUN(GLIBCXX_ENABLE_THREADS, [
- AC_MSG_CHECKING([for thread model used by GCC])
- target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
- AC_MSG_RESULT([$target_thread_file])
-
- if test $target_thread_file != single; then
- AC_DEFINE(HAVE_GTHR_DEFAULT)
- AC_DEFINE(_GLIBCXX_SUPPORTS_WEAK, __GXX_WEAK__)
- fi
-
- glibcxx_thread_h=gthr-$target_thread_file.h
- AC_SUBST(glibcxx_thread_h)
-])
+# AM_SET_CURRENT_AUTOMAKE_VERSION
+# -------------------------------
+# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
+# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
+AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
+[AM_AUTOMAKE_VERSION([1.11.1])dnl
+m4_ifndef([AC_AUTOCONF_VERSION],
+ [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
+# AM_AUX_DIR_EXPAND -*- Autoconf -*-
-# Check whether LC_MESSAGES is available in <locale.h>.
-# Ulrich Drepper <drepper@cygnus.com>, 1995.
+# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
#
-# This file file be copied and used freely without restrictions. It can
-# be used in projects which are not available under the GNU Public License
-# but which still want to provide support for the GNU gettext functionality.
-# Please note that the actual code is *not* freely available.
-
-# serial 1
-AC_DEFUN(AC_LC_MESSAGES, [
- AC_CHECK_HEADER(locale.h, [
- AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
- [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
- ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
- if test $ac_cv_val_LC_MESSAGES = yes; then
- AC_DEFINE(HAVE_LC_MESSAGES)
- fi
- ])
-])
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to
+# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory. The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
+# depending on how configure is run. This is pretty annoying, since
+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+# fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+# fails if $ac_aux_dir is absolute,
+# fails when called from a subdirectory in a VPATH build with
+# a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir. In an in-source build this is usually
+# harmless because $srcdir is `.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
+# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+# MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
+# unfortunately $(top_srcdir) has no meaning in configure.
+# However there are other variables, like CC, which are often used in
+# configure, and could therefore not use this "fixed" $ac_aux_dir.
+#
+# Another solution, used here, is to always expand $ac_aux_dir to an
+# absolute PATH. The drawback is that using absolute paths prevent a
+# configured tree to be moved without reconfiguration.
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+# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
+# From Jim Meyering
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+# serial 2
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+AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+m4_include([../config/enable.m4])
+m4_include([../config/futex.m4])
+m4_include([../config/iconv.m4])
+m4_include([../config/lead-dot.m4])
+m4_include([../config/lib-ld.m4])
+m4_include([../config/lib-link.m4])
+m4_include([../config/lib-prefix.m4])
+m4_include([../config/multi.m4])
+m4_include([../config/no-executables.m4])
+m4_include([../config/override.m4])
+m4_include([../config/stdint.m4])
+m4_include([../config/unwind_ipinfo.m4])
+m4_include([../libtool.m4])
+m4_include([../ltoptions.m4])
+m4_include([../ltsugar.m4])
+m4_include([../ltversion.m4])
+m4_include([../lt~obsolete.m4])
+m4_include([crossconfig.m4])
+m4_include([linkage.m4])
+m4_include([acinclude.m4])
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