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 $os_include_dir])
])
dnl
dnl Initialize basic configure bits.
dnl
dnl Substs:
dnl multi_basedir
dnl
AC_DEFUN([GLIBCXX_TOPREL_CONFIGURE], [
# Sets up multi_basedir, which is srcdir/.. plus the usual
# "multi_source_toprel_bottom_adjust" lunacy as needed.
AM_ENABLE_MULTILIB(, ..)
# The generated code is exactly the same, except that automake's looks in
if false; then
AC_CONFIG_AUX_DIR(..)
else
AC_CONFIG_AUX_DIRS(${multi_basedir})
fi
])
AC_DEFUN([GLIBCXX_CONFIGURE], [
m4_define([glibcxx_SUBDIRS],[include libmath libsupc++ src po testsuite])
SUBDIRS='glibcxx_SUBDIRS'
glibcxx_builddir=`${PWDCMD-pwd}`
case $srcdir in
[\\/$]* | ?:[\\/]*) glibcxx_srcdir=${srcdir} ;;
*) glibcxx_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
esac
toplevel_srcdir=${glibcxx_srcdir}/..
AC_SUBST(glibcxx_builddir)
AC_SUBST(glibcxx_srcdir)
AC_SUBST(toplevel_srcdir)
AC_ARG_WITH([target-subdir],
AC_HELP_STRING([--with-target-subdir=SUBDIR],
[configuring in a subdirectory]))
AC_ARG_WITH([cross-host],
AC_HELP_STRING([--with-cross-host=HOST],
[configuring with a cross compiler]))
AC_ARG_WITH([newlib],
AC_HELP_STRING([--with-newlib],
[assume newlib as a system C library]))
m4_define([ac_cv_prog_CXX],[glibcxx_cv_prog_CXX])
m4_rename([_AC_ARG_VAR_PRECIOUS],[glibcxx_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
save_CXXFLAGS="$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)
AC_MSG_CHECKING([for GCC version number])
gcc_version=`$CXX -dumpversion`
AC_MSG_RESULT($gcc_version)
AC_PROG_LN_S
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
AM_MAINTAINER_MODE
need_libmath=no
enable_wchar_t=no
GLIBCXX_CHECK_HOST
])
m4_include([linkage.m4])
m4_include([../config/no-executables.m4])
AC_DEFUN([GLIBCXX_CHECK_COMPILER_FEATURES], [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
if test x"$USE_MAINTAINER_MODE" = xno; then
WERROR=''
else
WERROR='-Werror'
fi
AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
AC_TRY_COMPILE(, [int foo;], [ac_fdsections=yes], [ac_fdsections=no])
if test "$ac_test_CXXFLAGS" = set; then
CXXFLAGS="$ac_save_CXXFLAGS"
else
CXXFLAGS=''
fi
if test x"$ac_fdsections" = x"yes"; then
SECTION_FLAGS='-ffunction-sections -fdata-sections'
fi
AC_MSG_RESULT($ac_fdsections)
AC_LANG_RESTORE
AC_SUBST(WERROR)
AC_SUBST(SECTION_FLAGS)
])
AC_DEFUN([GLIBCXX_CHECK_LINKER_FEATURES], [
test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
AC_REQUIRE([AC_PROG_LD])
AC_REQUIRE([AC_PROG_AWK])
if test x${with_gnu_ld+set} != xset; then
if test x${ac_cv_prog_gnu_ld+set} != xset; then
with_gnu_ld=no
else
with_gnu_ld=$ac_cv_prog_gnu_ld
fi
fi
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+[$]3 }'`
if test "$with_gnu_ld" = "notbroken"; then
ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS='-x c++ -Wl,--gc-sections'
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
CFLAGS=''
fi
if test "$ac_sectionLDflags" = "yes"; then
SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
fi
AC_MSG_RESULT($ac_sectionLDflags)
fi
if test x"$with_gnu_ld" = x"yes"; then
OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
fi
AC_SUBST(SECTION_LDFLAGS)
AC_SUBST(OPT_LDFLAGS)
])
AC_DEFUN([GLIBCXX_CHECK_WCHAR_T_SUPPORT], [
AC_MSG_CHECKING([for mbstate_t])
AC_TRY_COMPILE([ [mbstate_t teststate;],
have_mbstate_t=yes, have_mbstate_t=no)
AC_MSG_RESULT($have_mbstate_t)
if test x"$have_mbstate_t" = xyes; then
AC_DEFINE(HAVE_MBSTATE_T)
fi
AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes &&
test x"$enable_c_mbchar" != xno; then
AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
AC_TRY_COMPILE([ [int i = WCHAR_MIN; int j = WCHAR_MAX;],
has_wchar_minmax=yes, has_wchar_minmax=no)
AC_MSG_RESULT($has_wchar_minmax)
AC_MSG_CHECKING([for WEOF])
AC_TRY_COMPILE([
[wint_t i = WEOF;],
has_weof=yes, has_weof=no)
AC_MSG_RESULT($has_weof)
ac_wfuncs=yes
AC_CHECK_FUNCS([wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset],
[],[ac_wfuncs=no])
AC_CHECK_FUNCS([btowc wctob fgetwc fgetws fputwc fputws fwide \
fwprintf fwscanf swprintf swscanf vfwprintf vswprintf \
vwprintf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstol \
wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr],
[],[ac_wfuncs=no])
AC_CHECK_FUNCS([vfwscanf vswscanf vwscanf wcstof iswblank],[],[])
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)
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)
AC_CHECK_LIB(iconv, iconv, LIBICONV="-liconv")
ac_save_LIBS="$LIBS"
LIBS="$LIBS $LIBICONV"
AC_SUBST(LIBICONV)
AC_CHECK_FUNCS([iconv_open iconv_close iconv nl_langinfo],
[ac_XPG2funcs=yes], [ac_XPG2funcs=no])
LIBS="$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)
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)
])
AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT_ancilliary], [
AC_TRY_COMPILE(
[ ],
[ int f = RLIMIT_$1 ; ],
[glibcxx_mresult=1], [glibcxx_mresult=0])
AC_DEFINE_UNQUOTED(HAVE_LIMIT_$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 test $setrlimit_have_headers = yes; then
GLIBCXX_CHECK_SETRLIMIT_ancilliary(DATA)
GLIBCXX_CHECK_SETRLIMIT_ancilliary(RSS)
GLIBCXX_CHECK_SETRLIMIT_ancilliary(VMEM)
GLIBCXX_CHECK_SETRLIMIT_ancilliary(AS)
GLIBCXX_CHECK_SETRLIMIT_ancilliary(FSIZE)
AC_CACHE_VAL(ac_setrlimit, [
AC_TRY_COMPILE(
[ ],
[struct rlimit r;
setrlimit(0, &r);],
[ac_setrlimit=yes], [ac_setrlimit=no])
])
fi
AC_MSG_CHECKING([for testsuite resource limits support])
if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
ac_res_limits=yes
AC_DEFINE(_GLIBCXX_RES_LIMITS)
else
ac_res_limits=no
fi
AC_MSG_RESULT($ac_res_limits)
])
AC_DEFUN([GLIBCXX_CHECK_S_ISREG_OR_S_IFREG], [
AC_CACHE_VAL(glibcxx_cv_S_ISREG, [
AC_TRY_LINK(
[ [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(
[ [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
])
AC_DEFUN([GLIBCXX_CHECK_POLL], [
AC_CACHE_VAL(glibcxx_cv_POLL, [
AC_TRY_LINK(
[ [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
])
AC_DEFUN([GLIBCXX_CHECK_WRITEV], [
AC_CACHE_VAL(glibcxx_cv_WRITEV, [
AC_TRY_LINK(
[ [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
])
AC_DEFUN([GLIBCXX_CHECK_INT64_T], [
AC_CACHE_VAL(glibcxx_cv_INT64_T, [
AC_TRY_COMPILE(
[ [int64_t var;],
[glibcxx_cv_INT64_T=yes],
[glibcxx_cv_INT64_T=no])
])
if test $glibcxx_cv_INT64_T = yes; then
AC_DEFINE(HAVE_INT64_T)
fi
])
AC_DEFUN([GLIBCXX_CHECK_LFS], [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_CACHE_VAL(glibcxx_cv_LFS, [
AC_TRY_LINK(
[ ],
[FILE* fp;
fopen64("t", "w");
fseeko64(fp, 0, SEEK_CUR);
ftello64(fp);
lseek64(1, 0, SEEK_CUR);],
[glibcxx_cv_LFS=yes],
[glibcxx_cv_LFS=no])
])
if test $glibcxx_cv_LFS = yes; then
AC_DEFINE(_GLIBCXX_USE_LFS)
fi
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
AC_DEFUN([GLIBCXX_CONFIGURE_TESTSUITE], [
if $GLIBCXX_IS_NATIVE && test $is_hosted = yes; then
GLIBCXX_CHECK_SETRLIMIT
GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
if test $enable_symvers = no; then
enable_abi_check=no
else
case "$host" in
*-*-cygwin*)
enable_abi_check=no ;;
*)
enable_abi_check=yes ;;
esac
fi
else
enable_abi_check=no
fi
baseline_dir="$glibcxx_srcdir/config/abi/${abi_baseline_pair}\$(MULTISUBDIR)"
AC_SUBST(baseline_dir)
GLIBCXX_CONDITIONAL(GLIBCXX_TEST_WCHAR_T, test $enable_wchar_t = yes)
GLIBCXX_CONDITIONAL(GLIBCXX_TEST_ABI, test $enable_abi_check = yes)
])
AC_DEFUN([GLIBCXX_EXPORT_INCLUDES], [
GLIBCXX_INCLUDES="\
-I$glibcxx_builddir/include/$host_alias \
-I$glibcxx_builddir/include \
-I$glibcxx_srcdir/libsupc++"
if test $CANADIAN = yes; then
GLIBCXX_INCLUDES="$GLIBCXX_INCLUDES -I\${includedir}"
fi
TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/gcc'
AC_SUBST(GLIBCXX_INCLUDES)
AC_SUBST(TOPLEVEL_INCLUDES)
])
AC_DEFUN([GLIBCXX_EXPORT_FLAGS], [
OPTIMIZE_CXXFLAGS=
AC_SUBST(OPTIMIZE_CXXFLAGS)
WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
AC_SUBST(WARN_FLAGS)
])
AC_DEFUN([GLIBCXX_EXPORT_INSTALL_INFO], [
glibcxx_toolexecdir=no
glibcxx_toolexeclibdir=no
glibcxx_prefixdir=$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)
if test $version_specific_libs = no && test $gxx_include_dir = no; then
gxx_include_dir='${prefix}'/include/c++/${gcc_version}
fi
if test $version_specific_libs = yes; then
if test x"$gxx_include_dir" = x"no"; then
gxx_include_dir='${libdir}/gcc/${host_alias}/'$gcc_version/include/c++
fi
glibcxx_toolexecdir='${libdir}/gcc/${host_alias}'
glibcxx_toolexeclibdir='${toolexecdir}/'$gcc_version'$(MULTISUBDIR)'
fi
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='${libdir}/gcc/${host_alias}'
glibcxx_toolexeclibdir='${libdir}'
fi
multi_os_directory=`$CXX -print-multi-os-directory`
case $multi_os_directory in
.) ;; *) glibcxx_toolexeclibdir=$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)
])
m4_define([GLIBCXX_ENABLE],[m4_define([_g_switch],[--enable-$1])m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])]) 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 $1) ;;
esac
]],
[^$],
[[
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])m4_undefine([_g_help])])
AC_DEFUN([GLIBCXX_ENABLE_C99], [
GLIBCXX_ENABLE(c99,$1,,[turns on ISO/IEC 9899:1999 support])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_c99_math=yes;
AC_MSG_CHECKING([for ISO C99 support in <math.h>])
AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ [islessgreater(0.0,0.0);],, [ac_c99_math=no])
AC_TRY_COMPILE([ [isunordered(0.0,0.0);],, [ac_c99_math=no])
AC_MSG_RESULT($ac_c99_math)
if test x"$ac_c99_math" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_MATH)
fi
ac_c99_stdio=yes;
AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
AC_TRY_COMPILE([ [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
AC_TRY_COMPILE([ void foo(char* fmt, ...)
{va_list args; va_start(args, fmt);
vfscanf(stderr, "%i", args);}],
[],, [ac_c99_stdio=no])
AC_TRY_COMPILE([ void foo(char* fmt, ...)
{va_list args; va_start(args, fmt);
vscanf("%i", args);}],
[],, [ac_c99_stdio=no])
AC_TRY_COMPILE([ void foo(char* fmt, ...)
{va_list args; va_start(args, fmt);
vsnprintf(fmt, 0, "%i", args);}],
[],, [ac_c99_stdio=no])
AC_TRY_COMPILE([ void foo(char* fmt, ...)
{va_list args; va_start(args, fmt);
vsscanf(fmt, "%i", args);}],
[],, [ac_c99_stdio=no])
AC_MSG_RESULT($ac_c99_stdio)
ac_c99_stdlib=yes;
AC_MSG_CHECKING([for lldiv_t declaration])
AC_CACHE_VAL(ac_c99_lldiv_t, [
AC_TRY_COMPILE([ [ lldiv_t mydivt;],
[ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
])
AC_MSG_RESULT($ac_c99_lldiv_t)
AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
AC_TRY_COMPILE([ [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
AC_TRY_COMPILE([ [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ AC_TRY_COMPILE([ if test x"$ac_c99_lldiv_t" = x"no"; then
ac_c99_stdlib=no;
fi;
AC_MSG_RESULT($ac_c99_stdlib)
ac_c99_wchar=yes;
AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
AC_TRY_COMPILE([ [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
AC_TRY_COMPILE([ [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
AC_TRY_COMPILE([ [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
AC_MSG_RESULT($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($enable_c99)
if test x"$ac_99_math" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_MATH)
fi
if test x"$enable_c99" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99)
fi
AC_LANG_RESTORE
])
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)
])
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 test $enable_clocale = no || test $enable_clocale = yes; then
enable_clocale=auto
fi
enable_clocale_flag=$enable_clocale
if test $enable_clocale_flag = auto; then
case x${target_os} in
xlinux* | xgnu* | xkfreebsd*-gnu | xknetbsd*-gnu)
AC_EGREP_CPP([_GLIBCXX_ok], [
_GLIBCXX_ok
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
if test x$enable_clocale_flag = xgnu; then
AC_TRY_RUN([
extern __typeof(newlocale) __newlocale;
extern __typeof(duplocale) __duplocale;
extern __typeof(strcoll_l) __strcoll_l;
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
;;
*)
enable_clocale_flag=generic
;;
esac
fi
USE_NLS=no
AC_ARG_ENABLE(nls,
AC_HELP_STRING([--enable-nls],[use Native Language Support (default)]),
[],
[enable_nls=yes])
case ${enable_clocale_flag} in
generic)
AC_MSG_RESULT(generic)
CLOCALE_H=config/locale/generic/c_locale.h
CLOCALE_CC=config/locale/generic/c_locale.cc
CCODECVT_H=config/locale/generic/codecvt_specializations.h
CCODECVT_CC=config/locale/generic/codecvt_members.cc
CCOLLATE_CC=config/locale/generic/collate_members.cc
CCTYPE_CC=config/locale/generic/ctype_members.cc
CMESSAGES_H=config/locale/generic/messages_members.h
CMESSAGES_CC=config/locale/generic/messages_members.cc
CMONEY_CC=config/locale/generic/monetary_members.cc
CNUMERIC_CC=config/locale/generic/numeric_members.cc
CTIME_H=config/locale/generic/time_members.h
CTIME_CC=config/locale/generic/time_members.cc
CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
;;
gnu)
AC_MSG_RESULT(gnu)
ALL_LINGUAS="de fr"
AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
USE_NLS=yes
fi
for ling in $ALL_LINGUAS; do \
glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \
glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \
done
AC_SUBST(glibcxx_MOFILES)
AC_SUBST(glibcxx_POFILES)
CLOCALE_H=config/locale/gnu/c_locale.h
CLOCALE_CC=config/locale/gnu/c_locale.cc
CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
CCODECVT_CC=config/locale/gnu/codecvt_members.cc
CCOLLATE_CC=config/locale/gnu/collate_members.cc
CCTYPE_CC=config/locale/gnu/ctype_members.cc
CMESSAGES_H=config/locale/gnu/messages_members.h
CMESSAGES_CC=config/locale/gnu/messages_members.cc
CMONEY_CC=config/locale/gnu/monetary_members.cc
CNUMERIC_CC=config/locale/gnu/numeric_members.cc
CTIME_H=config/locale/gnu/time_members.h
CTIME_CC=config/locale/gnu/time_members.cc
CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
;;
ieee_1003.1-2001)
AC_MSG_RESULT(IEEE 1003.1)
CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
CCODECVT_CC=config/locale/generic/codecvt_members.cc
CCOLLATE_CC=config/locale/generic/collate_members.cc
CCTYPE_CC=config/locale/generic/ctype_members.cc
CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
CMONEY_CC=config/locale/generic/monetary_members.cc
CNUMERIC_CC=config/locale/generic/numeric_members.cc
CTIME_H=config/locale/generic/time_members.h
CTIME_CC=config/locale/generic/time_members.cc
CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
;;
esac
glibcxx_localedir=${glibcxx_builddir}/po/share/locale
AC_SUBST(glibcxx_localedir)
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)
])
AC_DEFUN([GLIBCXX_ENABLE_ALLOCATOR], [
AC_MSG_CHECKING([for std::allocator base class to use])
GLIBCXX_ENABLE(libstdcxx-allocator,auto,[=KIND],
[use KIND for target std::allocator base],
[permit new|malloc|mt|bitmap|pool|yes|no|auto])
if test $enable_libstdcxx_allocator = no || test $enable_libstdcxx_allocator = yes; then
enable_libstdcxx_allocator=auto
fi
enable_libstdcxx_allocator_flag=$enable_libstdcxx_allocator
if test $enable_libstdcxx_allocator_flag = auto; then
case ${target_os} in
*)
enable_libstdcxx_allocator_flag=new
;;
esac
fi
AC_MSG_RESULT($enable_libstdcxx_allocator_flag)
# Set configure bits for specified locale package
case ${enable_libstdcxx_allocator_flag} in
bitmap)
ALLOCATOR_H=config/allocator/bitmap_allocator_base.h
ALLOCATOR_NAME=__gnu_cxx::bitmap_allocator
;;
malloc)
ALLOCATOR_H=config/allocator/malloc_allocator_base.h
ALLOCATOR_NAME=__gnu_cxx::malloc_allocator
;;
mt)
ALLOCATOR_H=config/allocator/mt_allocator_base.h
ALLOCATOR_NAME=__gnu_cxx::__mt_alloc
;;
new)
ALLOCATOR_H=config/allocator/new_allocator_base.h
ALLOCATOR_NAME=__gnu_cxx::new_allocator
;;
pool)
ALLOCATOR_H=config/allocator/pool_allocator_base.h
ALLOCATOR_NAME=__gnu_cxx::__pool_alloc
;;
esac
AC_SUBST(ALLOCATOR_H)
AC_SUBST(ALLOCATOR_NAME)
])
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'.
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
])
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])
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
AC_SUBST(CSTDIO_H)
AC_SUBST(BASIC_FILE_H)
AC_SUBST(BASIC_FILE_CC)
])
AC_DEFUN([GLIBCXX_ENABLE_CXX_FLAGS], [ 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])
if test -n "$enable_cxx_flags"; then
for f in $enable_cxx_flags; do
case "$f" in
-fhonor-std) ;;
-*) ;;
*) 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)
])
AC_DEFUN([GLIBCXX_ENABLE_C_MBCHAR], [
GLIBCXX_ENABLE(c-mbchar,$1,,[enable multibyte (wide) characters])
])
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)
])
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])
DEBUG_FLAGS="$enable_libstdcxx_debug_flags"
AC_SUBST(DEBUG_FLAGS)
AC_MSG_NOTICE([Debug build flags set to $DEBUG_FLAGS])
])
AC_DEFUN([GLIBCXX_ENABLE_HOSTED], [
AC_ARG_ENABLE([hosted-libstdcxx],
AC_HELP_STRING([--disable-hosted-libstdcxx],
[only build freestanding C++ runtime support]),,
[enable_hosted_libstdcxx=yes])
if test "$enable_hosted_libstdcxx" = no; then
AC_MSG_NOTICE([Only freestanding libraries will be built])
is_hosted=no
hosted_define=0
enable_abi_check=no
enable_libstdcxx_pch=no
else
is_hosted=yes
hosted_define=1
fi
GLIBCXX_CONDITIONAL(GLIBCXX_HOSTED, test $is_hosted = yes)
AC_DEFINE_UNQUOTED(_GLIBCXX_HOSTED, $hosted_define,
[Define to 1 if a full hosted library is built, or 0 if freestanding.])
])
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])
AC_TRY_COMPILE([ [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
AC_TRY_COMPILE([ [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
if test $enable_long_long = yes; then
AC_DEFINE(_GLIBCXX_USE_LONG_LONG)
fi
AC_MSG_RESULT($enable_long_long)
AC_LANG_RESTORE
])
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 ' if $CXX $CXXFLAGS $CPPFLAGS -x c++-header conftest.h \
-o conftest.h.gch 1>&5 2>&1 &&
echo ' echo ' $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)
])
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 $enable_sjlj_exceptions = auto; then
cat > conftest.$ac_ext << EOF
[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
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)
])
AC_DEFUN([GLIBCXX_ENABLE_SYMVERS], [
GLIBCXX_ENABLE(symvers,$1,[=STYLE],
[enables symbol versioning of the shared library],
[permit yes|no|gnu])
AC_REQUIRE([GLIBCXX_CHECK_LINKER_FEATURES])
if test $enable_shared = no ||
test "x$LD" = x ||
test x$glibcxx_gnu_ld_version = x; then
enable_symvers=no
fi
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
glibcxx_min_gnu_ld_version=21400
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
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
AC_MSG_WARN([=== Symbol versioning will be disabled.])
enable_symvers=no
else
AC_MSG_WARN([=== Symbol versioning will be disabled.])
enable_symvers=no
fi
fi
else
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
case $enable_symvers in
no)
SYMVER_MAP=config/linker-map.dummy
;;
gnu)
SYMVER_MAP=config/linker-map.gnu
AC_DEFINE(_GLIBCXX_SYMVER)
;;
esac
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 $enable_symvers)
])
AC_DEFUN([GLIBCXX_ENABLE_THREADS], [
AC_MSG_CHECKING([for thread model used by GCC])
target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
AC_MSG_RESULT([$target_thread_file])
if test $target_thread_file != single; then
AC_DEFINE(HAVE_GTHR_DEFAULT)
fi
glibcxx_thread_h=gthr-$target_thread_file.h
AC_SUBST(glibcxx_thread_h)
])
AC_DEFUN([AC_LC_MESSAGES], [
AC_CHECK_HEADER(locale.h, [
AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
[AC_TRY_LINK([ 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
])
])
sinclude([../libtool.m4])
ifelse(,,,[AC_SUBST(LIBTOOL)
AC_DEFUN([AM_PROG_LIBTOOL])
AC_DEFUN([AC_LIBTOOL_DLOPEN])
AC_DEFUN([AC_PROG_LD])
])