# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
-# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
# Free Software Foundation, Inc.
#This file is part of GCC.
#You should have received a copy of the GNU General Public License
#along with GCC; see the file COPYING. If not, write to the Free
-#Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-#02111-1307, USA.
+#Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+#02110-1301, USA.
# --------------------------------
# Initialization and sanity checks
AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
+gcc_version=`cat $srcdir/BASE-VER`
+
# Determine the host, build, and target systems
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
*) gcc_gxx_include_dir=$with_gxx_include_dir ;;
esac])
+# This logic must match libstdc++-v3/acinclude.m4:GLIBCXX_EXPORT_INSTALL_INFO.
if test x${gcc_gxx_include_dir} = x; then
if test x${enable_version_specific_runtime_libs} = xyes; then
gcc_gxx_include_dir='${libsubdir}/include/c++'
else
- libstdcxx_incdir='c++/$(version)'
+ libstdcxx_incdir='include/c++/$(version)'
+ if test x$host != x$target; then
+ libstdcxx_incdir="$target_alias/$libstdcxx_incdir"
+ fi
changequote(<<, >>)dnl
- gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
+ gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/$libstdcxx_incdir"
changequote([, ])dnl
fi
fi
[Define to enable the use of a default linker.])
fi
+gnu_ld=`if test x"$gnu_ld_flag" = x"yes"; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(HAVE_GNU_LD, $gnu_ld, [Define if using GNU ld.])
+
AC_MSG_CHECKING([whether a default linker was specified])
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test x"$gnu_ld_flag" = x"no"; then
AC_SUBST(NO_MINUS_C_MINUS_O)
AC_SUBST(OUTPUT_OPTION)
+# Remove the -O2: for historical reasons, unless bootstrapping we prefer
+# optimizations to be activated explicitly by the toplevel.
+case "$CC" in
+ */prev-gcc/xgcc*) ;;
+ *) CFLAGS=`echo $CFLAGS | sed "s/-O[[s0-9]]* *//" ` ;;
+esac
+AC_SUBST(CFLAGS)
+
# -------------------------
# Check C compiler features
# -------------------------
AC_PROG_CPP
AC_C_INLINE
-gcc_AC_C_LONG_LONG
-
# sizeof(char) is 1 by definition.
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
-if test $ac_cv_c_long_long = yes; then
- AC_CHECK_SIZEOF(long long)
-fi
-if test $ac_cv_c___int64 = yes; then
- AC_CHECK_SIZEOF(__int64)
-fi
+AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
+AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
# ---------------------
# Warnings and checking
# We want to use -pedantic, but we don't want warnings about
# * 'long long'
# * variadic macros
+# * overlong strings
# So, we only use -pedantic if we can disable those warnings.
AC_CACHE_CHECK(
CFLAGS="$save_CFLAGS"
])
-strict1_warn=
+AC_CACHE_CHECK(
+ [whether ${CC} accepts -Wno-overlength-strings],
+ [ac_cv_prog_cc_w_no_overlength_strings],
+ [save_CFLAGS="$CFLAGS"
+ CFLAGS="-Wno-overlength-strings"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
+ [ac_cv_prog_cc_w_no_overlength_strings=yes],
+ [ac_cv_prog_cc_w_no_overlength_strings=no])
+ CFLAGS="$save_CFLAGS"
+ ])
+
+strict_warn=
if test $ac_cv_prog_cc_w_no_long_long = yes \
- && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
- strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
+ && test $ac_cv_prog_cc_w_no_variadic_macros = yes \
+ && test $ac_cv_prog_cc_w_no_overlength_strings = yes ; then
+ strict_warn="-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings"
fi
-AC_SUBST(strict1_warn)
# Add -Wold-style-definition if it's accepted
AC_CACHE_CHECK(
CFLAGS="$save_CFLAGS"
])
if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
- strict1_warn="${strict1_warn} -Wold-style-definition"
+ strict_warn="${strict_warn} -Wold-style-definition"
+fi
+
+# Add -Wmissing-format-attribute if it's accepted
+AC_CACHE_CHECK(
+ [whether ${CC} accepts -Wmissing-format-attribute],
+ [ac_cv_prog_cc_w_missing_format_attribute],
+ [save_CFLAGS="$CFLAGS"
+ CFLAGS="-Wmissing-format-attribute"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
+ [ac_cv_prog_cc_w_missing_format_attribute=yes],
+ [ac_cv_prog_cc_w_missing_format_attribute=no])
+ CFLAGS="$save_CFLAGS"
+ ])
+if test $ac_cv_prog_cc_w_missing_format_attribute = yes ; then
+ strict_warn="${strict_warn} -Wmissing-format-attribute"
fi
# Enable -Werror, period.
[ --enable-werror-always enable -Werror always], [],
[enable_werror_always=no])
if test x${enable_werror_always} = xyes ; then
- strict1_warn="${strict1_warn} -Werror"
- WERROR=-Werror
+ strict_warn="${strict_warn} -Werror"
+fi
+AC_SUBST(strict_warn)
+
+# Get C++ compatibility warning flag, if supported.
+AC_CACHE_CHECK(
+ [whether ${CC} accepts -Wc++-compat],
+ [ac_cv_prog_cc_w_cxx_compat],
+ [save_CFLAGS="$CFLAGS"
+ CFLAGS="-Wc++-compat"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
+ [ac_cv_prog_cc_w_cxx_compat=yes],
+ [ac_cv_prog_cc_w_cxx_compat=no])
+ CFLAGS="$save_CFLAGS"
+ ])
+if test x${ac_cv_prog_cc_w_cxx_compat} = xyes; then
+ cxx_compat_warn="-Wc++-compat"
fi
+AC_SUBST(cxx_compat_warn)
+
# If the native compiler is GCC, we can enable warnings even in stage1.
# That's useful for people building cross-compilers, or just running a
fi
AC_SUBST(warn_cflags)
-# Enable -Werror in bootstrap stage2 and later.
+# Enable expensive internal checks
is_release=
if test x"`cat $srcdir/DEV-PHASE`" != xexperimental; then
is_release=yes
fi
-AC_ARG_ENABLE(werror,
-[ --enable-werror enable -Werror in bootstrap stage2 and later], [],
-[if test x$is_release = x ; then
- # Default to "yes" on development branches.
- enable_werror=yes
-else
- # Default to "no" on release branches.
- enable_werror=no
-fi])
-if test x$enable_werror = xyes ; then
- WERROR=-Werror
-fi
-AC_SUBST(WERROR)
-# Enable expensive internal checks
AC_ARG_ENABLE(checking,
[ --enable-checking[=LIST]
enable expensive run-time checks. With LIST,
# It is certainly possible that there's valgrind but no valgrind.h.
# GCC relies on making annotations so we must have both.
AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
- AC_TRY_CPP(
- [#include <valgrind/memcheck.h>
+ AC_PREPROC_IFELSE([AC_LANG_SOURCE(
+ [[#include <valgrind/memcheck.h>
#ifndef VALGRIND_DISCARD
#error VALGRIND_DISCARD not defined
-#endif],
+#endif]])],
[gcc_cv_header_valgrind_memcheck_h=yes],
[gcc_cv_header_valgrind_memcheck_h=no])
AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
- AC_TRY_CPP(
- [#include <memcheck.h>
+ AC_PREPROC_IFELSE([AC_LANG_SOURCE(
+ [[#include <memcheck.h>
#ifndef VALGRIND_DISCARD
#error VALGRIND_DISCARD not defined
-#endif],
- [gcc_cv_header_memcheck_h=yes],
- gcc_cv_header_memcheck_h=no)
+#endif]])],
+ [gcc_cv_header_memcheck_h=yes],
+ [gcc_cv_header_memcheck_h=no])
AC_MSG_RESULT($gcc_cv_header_memcheck_h)
AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
[$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
[ --enable-__cxa_atexit enable __cxa_atexit for C++],
[], [])
+# Enable C extension for decimal float if target supports it.
+AC_ARG_ENABLE(decimal-float,
+[ --enable-decimal-float={no,yes,bid,dpd}
+ enable decimal float extension to C. Selecting 'bid'
+ or 'dpd' choses which decimal floating point format
+ to use],
+[
+ case $enable_decimal_float in
+ yes | no | bid | dpd) ;;
+ *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
+Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
+ esac
+],
+[
+ case $target in
+ powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
+ enable_decimal_float=yes
+ ;;
+ *)
+ AC_MSG_WARN(decimal float is not supported for this target, ignored)
+ enable_decimal_float=no
+ ;;
+ esac
+])
+
+dfp=`if test $enable_decimal_float != no; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_FLOAT, $dfp,
+[Define to 1 to enable decimal float extension to C.])
+
+# x86's use BID format instead of DPD
+case x$enable_decimal_float in
+ xyes)
+ case $target in
+ i?86*-*-linux* | x86_64*-*-linux*)
+ enable_decimal_float=bid
+ ;;
+ *)
+ enable_decimal_float=dpd
+ ;;
+ esac
+ ;;
+ xno)
+ # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
+ # dependency on libdecnumber.
+ enable_decimal_float=dpd
+ ;;
+esac
+AC_SUBST(enable_decimal_float)
+
+bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
+AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
+[Define to 1 to specify that we are using the BID decimal floating
+point format instead of DPD])
+
# Enable threads
# Pass with no value to take the default
# Pass with a value to specify a thread package
--enable-threads=LIB use LIB thread package for target GCC],,
[enable_threads=''])
+AC_ARG_ENABLE(tls,
+[ --enable-tls enable or disable generation of tls code
+ overriding the assembler check for tls support],
+[
+ case $enable_tls in
+ yes | no) ;;
+ *) AC_MSG_ERROR(['$enable_tls' is an invalid value for --enable-tls.
+Valid choices are 'yes' and 'no'.]) ;;
+ esac
+], [enable_tls=''])
+
AC_ARG_ENABLE(objc-gc,
[ --enable-objc-gc enable the use of Boehm's garbage collector with
the GNU Objective-C runtime],
], [enable_shared=yes])
AC_SUBST(enable_shared)
+AC_ARG_WITH(build-sysroot,
+ [ --with-build-sysroot=sysroot
+ use sysroot as the system root during the build])
+
AC_ARG_WITH(sysroot,
[ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
[
esac
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
- CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
-
+ CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
+
+ if test "x$prefix" = xNONE; then
+ test_prefix=/usr/local
+ else
+ test_prefix=$prefix
+ fi
if test "x$exec_prefix" = xNONE; then
- if test "x$prefix" = xNONE; then
- test_prefix=/usr/local
- else
- test_prefix=$prefix
- fi
+ test_exec_prefix=$test_prefix
else
- test_prefix=$exec_prefix
+ test_exec_prefix=$exec_prefix
fi
case ${TARGET_SYSTEM_ROOT} in
"${test_prefix}"|"${test_prefix}/"*|\
+ "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
+ '${prefix}'|'${prefix}/'*|\
'${exec_prefix}'|'${exec_prefix}/'*)
t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
TARGET_SYSTEM_ROOT_DEFINE="$t"
esac],
[enable_languages=c])
-subdirs=
-for lang in ${srcdir}/*/config-lang.in
-do
- case $lang in
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
-changequote(,)dnl
- ${srcdir}/[*]/config-lang.in) ;;
- *)
- lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
- if test "x$lang_alias" = x
- then
- echo "$lang doesn't set \$language." 1>&2
- exit 1
- fi
- case ",$enable_languages," in
- *,$lang_alias,*)
- subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
- esac
- ;;
-changequote([,])dnl
- esac
-done
-
+# Used by documentation targets
+AC_SUBST(datarootdir)
+AC_SUBST(docdir)
+AC_SUBST(htmldir)
# -------------------------
# Checks for other programs
# that we can use it.
gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
[GNU texinfo.* \([0-9][0-9.]*\)],
- [4.[2-9]*])
+ [4.[4-9]*])
if test $gcc_cv_prog_makeinfo_modern = no; then
MAKEINFO="$MISSING makeinfo"
AC_MSG_WARN([
AC_MSG_CHECKING(for GNU C library)
AC_CACHE_VAL(gcc_cv_glibc,
-[AC_TRY_COMPILE(
- [#include <features.h>],[
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+ [[#include <features.h>]], [[
#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
#error Not a GNU C library system
-#endif],
- [gcc_cv_glibc=yes],
- gcc_cv_glibc=no)])
+#endif]])],
+ [gcc_cv_glibc=yes],
+ [gcc_cv_glibc=no])])
AC_MSG_RESULT($gcc_cv_glibc)
if test $gcc_cv_glibc = yes; then
AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
# UNSORTED
# --------
-# Stage specific cflags for build.
-stage1_cflags=
-case $build in
-vax-*-*)
- if test x$GCC = xyes
- then
- stage1_cflags="-Wa,-J"
- else
- stage1_cflags="-J"
- fi
- ;;
-powerpc-*-darwin*)
- # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
- # sources; use -no-cpp-precomp to get to GNU cpp.
- # Apple's GCC has bugs in designated initializer handling, so disable
- # that too.
- stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
- ;;
-esac
-AC_SUBST(stage1_cflags)
# These libraries may be used by collect2.
# We may need a special search path to get them linked.
# doesn't clash with <sys/types.h>, and declares intmax_t.
AC_MSG_CHECKING(for inttypes.h)
AC_CACHE_VAL(gcc_cv_header_inttypes_h,
-[AC_TRY_COMPILE(
- [#include <sys/types.h>
-#include <inttypes.h>],
- [intmax_t i = -1;],
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[#include <sys/types.h>
+#include <inttypes.h>]],
+ [[intmax_t i = -1;]])],
[gcc_cv_header_inttypes_h=yes],
- gcc_cv_header_inttypes_h=no)])
+ [gcc_cv_header_inttypes_h=no])])
AC_MSG_RESULT($gcc_cv_header_inttypes_h)
if test $gcc_cv_header_inttypes_h = yes; then
AC_DEFINE(HAVE_INTTYPES_H, 1,
fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
putchar_unlocked putc_unlocked)
-AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
+AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
sysconf strsignal getrusage nl_langinfo scandir alphasort \
gettimeofday mbstowcs wcswidth mmap mincore setlocale \
gcc_UNLOCKED_FUNCS)
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
-[ AC_TRY_RUN([#include <stdlib.h>
+[ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
int main()
{
mbstowcs(0, "", 0);
return 0;
-}],
- gcc_cv_func_mbstowcs_works=yes,
- gcc_cv_func_mbstowcs_works=no,
- gcc_cv_func_mbstowcs_works=yes)])
+}]])],
+ [gcc_cv_func_mbstowcs_works=yes],
+ [gcc_cv_func_mbstowcs_works=no],
+ [gcc_cv_func_mbstowcs_works=yes])])
if test x$gcc_cv_func_mbstowcs_works = xyes; then
AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
[Define this macro if mbstowcs does not crash when its
fi
AC_SUBST(TARGET_GETGROUPS_T)
-gcc_AC_FUNC_PRINTF_PTR
gcc_AC_FUNC_MMAP_BLACKLIST
case "${host}" in
ac_cv_func_vfork_works=yes
;;
esac
-AC_FUNC_VFORK
+AC_FUNC_FORK
AM_ICONV
# Until we have in-tree GNU iconv:
# We will need to find libiberty.h and ansidecl.h
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
-gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd strsignal \
- strstr errno snprintf vsnprintf vasprintf malloc realloc calloc \
+gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd \
+ strsignal strstr strverscmp \
+ errno snprintf vsnprintf vasprintf malloc realloc calloc \
free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
#include "ansidecl.h"
#include "system.h"])
#endif
])
-AC_TRY_COMPILE([
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
-],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
+]], [[rlim_t l = 0;]])],[],[AC_DEFINE([rlim_t],[long],
[Define to \`long' if <sys/resource.h> doesn't define.])])
# On AIX 5.2, <ldfcn.h> conflicts with <fcntl.h>, as both define incompatible
#endif
])
+gcc_AC_CHECK_DECLS(sigaltstack, , ,[
+#include "ansidecl.h"
+#include "system.h"
+#include <signal.h>
+])
+
# More time-related stuff.
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
-AC_TRY_COMPILE([
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
-], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
+]], [[struct tms tms;]])],[ac_cv_struct_tms=yes],[ac_cv_struct_tms=no])])
if test $ac_cv_struct_tms = yes; then
AC_DEFINE(HAVE_STRUCT_TMS, 1,
[Define if <sys/times.h> defines struct tms.])
# use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
# revisit after autoconf 2.50.
AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
-AC_TRY_COMPILE([
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include "ansidecl.h"
#include "system.h"
-], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
+]], [[clock_t x;]])],[gcc_cv_type_clock_t=yes],[gcc_cv_type_clock_t=no])])
if test $gcc_cv_type_clock_t = yes; then
AC_DEFINE(HAVE_CLOCK_T, 1,
[Define if <time.h> defines clock_t.])
AC_ARG_WITH(system-libunwind,
[ --with-system-libunwind use installed libunwind])
+# config.gcc also contains tests of with_system_libunwind.
+if test x$with_system_libunwind = xyes; then
+ AC_DEFINE(HAVE_GETIPINFO, 1,
+[Define to 1 if system unwind library has _Unwind_GetIPInfo.])
+fi
+
# --------------------------------------------------------
# Build, host, and target specific configuration fragments
# --------------------------------------------------------
fi
fi
+case ${host} in
+ powerpc*-*-darwin*)
+ AC_CACHE_CHECK([whether mcontext_t fields have underscores],
+ gcc_cv_mcontext_underscores,
+ AC_COMPILE_IFELSE([
+#include <sys/cdefs.h>
+#include <sys/signal.h>
+#include <ucontext.h>
+int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
+],
+ gcc_cv_mcontext_underscores=no, gcc_cv_mcontext_underscores=yes))
+ if test $gcc_cv_mcontext_underscores = yes; then
+ AC_DEFINE(HAS_MCONTEXT_T_UNDERSCORES,,dnl
+ [mcontext_t fields start with __])
+ fi
+ ;;
+esac
+
# ---------
# Threading
# ---------
if test x$enable___cxa_atexit = xyes || \
test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
if test x$host = x$target; then
- AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
- [echo "__cxa_atexit can't be enabled on this target"])
+ case $host in
+ # mingw32 doesn't have __cxa_atexit but uses atexit registration
+ # keyed to flag_use_cxa_atexit
+ *-*-mingw32*)
+ use_cxa_atexit=yes
+ ;;
+ *)
+ AC_CHECK_FUNC(__cxa_atexit,[use_cxa_atexit=yes],
+ [echo "__cxa_atexit can't be enabled on this target"])
+ ;;
+ esac
else
# We can't check for __cxa_atexit when building a cross, so assume
# it is available
use_cxa_atexit=yes
fi
if test x$use_cxa_atexit = xyes; then
- AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
+ AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 2,
[Define if you want to use __cxa_atexit, rather than atexit, to
register C++ destructors for local statics and global objects.
This is essential for fully standards-compliant handling of
fi
fi
+use_getipinfo=yes
+if test x$with_system_libunwind = xyes; then
+ if test x$host = x$target; then
+ AC_SEARCH_LIBS(_Unwind_GetIPInfo, unwind,, [use_getipinfo=no])
+ fi
+fi
+GCC_TARGET_TEMPLATE(HAVE_GETIPINFO)
+if test x$use_getipinfo = xyes; then
+ AC_DEFINE(HAVE_GETIPINFO, 1,
+ [Define to 1 if system unwind library has _Unwind_GetIPInfo.])
+else
+ echo "The system unwind library does not support _Unwind_GetIPInfo."
+fi
+
# Look for a file containing extra machine modes.
if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
extra_modes_file='$(srcdir)'/config/${extra_modes}
LIBICONV= ;;
esac
+AC_ARG_ENABLE(secureplt,
+[ --enable-secureplt enable -msecure-plt by default for PowerPC],
+[], [])
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[ --disable-win32-registry
done
tmake_file="${tmake_file_}"
-# If the host doesn't support symlinks, modify CC in
-# FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
-# Otherwise, we can use "CC=$(CC)".
-rm -f symtest.tem
-case "$LN_S" in
- *-s*)
- cc_set_by_configure="\$(CC)"
- quoted_cc_set_by_configure="\$(CC)"
- stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
- quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
- ;;
- *)
- cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
- quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
- stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
- quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
- ;;
-esac
-
# This is a terrible hack which will go away some day.
host_cc_for_libada=${CC}
AC_SUBST(host_cc_for_libada)
tm_include_list="options.h"
for f in $tm_file; do
case $f in
+ ./* )
+ f=`echo $f | sed 's/^..//'`
+ tm_file_list="${tm_file_list} $f"
+ tm_include_list="${tm_include_list} $f"
+ ;;
defaults.h )
tm_file_list="${tm_file_list} \$(srcdir)/$f"
tm_include_list="${tm_include_list} $f"
esac
done
-# Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
+# Define macro CROSS_DIRECTORY_STRUCTURE in compilation if this is a
+# cross-compiler which does not use the native headers and libraries.
# Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
CROSS= AC_SUBST(CROSS)
ALL=all.internal AC_SUBST(ALL)
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
+
+if test "x$with_build_sysroot" != x; then
+ build_system_header_dir=$with_build_sysroot'$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
+else
+ # This value is used, even on a native system, because
+ # CROSS_SYSTEM_HEADER_DIR is just
+ # $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR).
+ build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
+fi
+
if test x$host != x$target
then
- CROSS="-DCROSS_COMPILE"
+ CROSS="-DCROSS_DIRECTORY_STRUCTURE"
ALL=all.cross
- SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
+ SYSTEM_HEADER_DIR=$build_system_header_dir
case "$host","$target" in
# Darwin crosses can use the host system's libraries and headers,
# because of the fat library support. Of course, it must be the
CROSS="$CROSS -DNATIVE_CROSS" ;;
esac
elif test "x$TARGET_SYSTEM_ROOT" != x; then
- # This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
- SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
+ SYSTEM_HEADER_DIR=$build_system_header_dir
fi
# If this is a cross-compiler that does not
# then define inhibit_libc in LIBGCC2_CFLAGS.
# This prevents libgcc2 from containing any code which requires libc
# support.
-inhibit_libc=
+inhibit_libc=false
if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
test x$with_newlib = xyes ; } &&
{ test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
- inhibit_libc=-Dinhibit_libc
+ inhibit_libc=true
fi
AC_SUBST(inhibit_libc)
# If build != host, and we aren't building gas in-tree, we identify a
# build->target assembler and hope that it will have the same features
# as the host->target assembler we'll be using.
-AC_MSG_CHECKING(what assembler to use)
-in_tree_gas=no
-gcc_cv_as=
gcc_cv_gas_major_version=
gcc_cv_gas_minor_version=
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
+
+m4_pattern_allow([AS_FOR_TARGET])dnl
+AS_VAR_SET_IF(gcc_cv_as,, [
if test -x "$DEFAULT_ASSEMBLER"; then
gcc_cv_as="$DEFAULT_ASSEMBLER"
-elif test -x as$build_exeext; then
- # Build using assembler in the current directory.
- gcc_cv_as=./as$build_exeext
elif test -f $gcc_cv_as_gas_srcdir/configure.in \
&& test -f ../gas/Makefile \
&& test x$build = x$host; then
+ gcc_cv_as=../gas/as-new$build_exeext
+elif test -x as$build_exeext; then
+ # Build using assembler in the current directory.
+ gcc_cv_as=./as$build_exeext
+elif test -x $AS_FOR_TARGET; then
+ gcc_cv_as="$AS_FOR_TARGET"
+else
+ AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
+fi])
+
+ORIGINAL_AS_FOR_TARGET=$gcc_cv_as
+AC_SUBST(ORIGINAL_AS_FOR_TARGET)
+case "$ORIGINAL_AS_FOR_TARGET" in
+ ./as | ./as$build_exeext) ;;
+ *) AC_CONFIG_FILES(as:exec-tool.in, [chmod +x as]) ;;
+esac
+
+AC_MSG_CHECKING(what assembler to use)
+if test "$gcc_cv_as" = ../gas/as-new$build_exeext; then
# Single tree build which includes gas. We want to prefer it
# over whatever linker top-level may have detected, since
# we'll use what we're building after installation anyway.
+ AC_MSG_RESULT(newly built gas)
in_tree_gas=yes
_gcc_COMPUTE_GAS_VERSION
- rm -f as$build_exeext
- $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
in_tree_gas_is_elf=no
if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|| (grep 'obj_format = multi' ../gas/Makefile \
then
in_tree_gas_is_elf=yes
fi
-m4_pattern_allow([AS_FOR_TARGET])dnl
-elif test -x "$AS_FOR_TARGET"; then
- gcc_cv_as="$AS_FOR_TARGET"
-elif test -x "$AS" && test x$host = x$target; then
- gcc_cv_as="$AS"
-fi
-
-gcc_version=`cat $srcdir/BASE-VER`
-
-if test "x$gcc_cv_as" = x; then
- # Search the same directories that the installed compiler will
- # search. Else we may find the wrong assembler and lose. If we
- # do not find a suitable assembler binary, then try the user's
- # path.
- #
- # Also note we have to check MD_EXEC_PREFIX before checking the
- # user's path. Unfortunately, there is no good way to get at the
- # value of MD_EXEC_PREFIX here. So we do a brute force search
- # through all the known MD_EXEC_PREFIX values. Ugh. This needs
- # to be fixed as part of the make/configure rewrite too.
-
- if test "x$exec_prefix" = xNONE; then
- if test "x$prefix" = xNONE; then
- test_prefix=/usr/local
- else
- test_prefix=$prefix
- fi
- else
- test_prefix=$exec_prefix
- fi
-
- # If the loop below does not find an assembler, then use whatever
- # one we can find in the users's path. We are looking for a
- # ${build} -> ${target} assembler.
- if test "x$program_prefix" != xNONE; then
- gcc_cv_as=${program_prefix}as$build_exeext
- elif test x$build != x$host && test x$build != x$target; then
- gcc_cv_as=${target_noncanonical}-as$build_exeext
- else
- gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
- fi
-
- if test x$host = x$build; then
- test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
- $test_prefix/libexec/gcc/$target_noncanonical \
- /usr/lib/gcc/$target_noncanonical/$gcc_version \
- /usr/lib/gcc/$target_noncanonical \
- $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
- $test_prefix/$target_noncanonical/bin"
- else
- test_dirs=
- fi
-
- if test x$build = x$target; then
- test_dirs="$test_dirs \
- /usr/libexec \
- /usr/ccs/gcc \
- /usr/ccs/bin \
- /udk/usr/ccs/bin \
- /bsd43/usr/lib/cmplrs/cc \
- /usr/cross64/usr/bin \
- /usr/lib/cmplrs/cc \
- /sysv/usr/lib/cmplrs/cc \
- /svr4/usr/lib/cmplrs/cc \
- /usr/bin"
- fi
-
- for dir in $test_dirs; do
- if test -x $dir/as$build_exeext; then
- gcc_cv_as=$dir/as$build_exeext
- break;
- fi
- done
+else
+ AC_MSG_RESULT($gcc_cv_as)
+ in_tree_gas=no
fi
-case $in_tree_gas in
- yes)
- AC_MSG_RESULT("newly built gas")
- ;;
- no)
- AC_MSG_RESULT($gcc_cv_as)
- ;;
-esac
# Identify the linker which will work hand-in-glove with the newly
# built GCC, so that we can examine its features. This is the linker
# If build != host, and we aren't building gas in-tree, we identify a
# build->target linker and hope that it will have the same features
# as the host->target linker we'll be using.
-AC_MSG_CHECKING(what linker to use)
-in_tree_ld=no
-gcc_cv_ld=
gcc_cv_gld_major_version=
gcc_cv_gld_minor_version=
gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
+
+AS_VAR_SET_IF(gcc_cv_ld,, [
if test -x "$DEFAULT_LINKER"; then
gcc_cv_ld="$DEFAULT_LINKER"
-elif test -x collect-ld$build_exeext; then
- # Build using linker in the current directory.
- gcc_cv_ld=./collect-ld$build_exeext
elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
&& test -f ../ld/Makefile \
&& test x$build = x$host; then
+ gcc_cv_ld=../ld/ld-new$build_exeext
+elif test -x collect-ld$build_exeext; then
+ # Build using linker in the current directory.
+ gcc_cv_ld=./collect-ld$build_exeext
+elif test -x $LD_FOR_TARGET; then
+ gcc_cv_ld="$LD_FOR_TARGET"
+else
+ AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
+fi])
+
+ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
+AC_SUBST(ORIGINAL_LD_FOR_TARGET)
+case "$ORIGINAL_LD_FOR_TARGET" in
+ ./collect-ld | ./collect-ld$build_exeext) ;;
+ *) AC_CONFIG_FILES(collect-ld:exec-tool.in, [chmod +x collect-ld]) ;;
+esac
+
+AC_MSG_CHECKING(what linker to use)
+if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
# Single tree build which includes ld. We want to prefer it
# over whatever linker top-level may have detected, since
# we'll use what we're building after installation anyway.
+ AC_MSG_RESULT(newly built ld)
in_tree_ld=yes
in_tree_ld_is_elf=no
if (grep 'EMUL = .*elf' ../ld/Makefile \
do
changequote(,)dnl
gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
-changequote([,])dnl
if test x$gcc_cv_gld_version != x; then
break
fi
done
-changequote(,)dnl
gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
changequote([,])dnl
- rm -f collect-ld$build_exeext
- $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
-elif test -x "$LD_FOR_TARGET"; then
- gcc_cv_ld="$LD_FOR_TARGET"
-elif test -x "$LD" && test x$host = x$target; then
- gcc_cv_ld="$LD"
-fi
-
-if test "x$gcc_cv_ld" = x; then
- # Search the same directories that the installed compiler will
- # search. Else we may find the wrong linker and lose. If we
- # do not find a suitable linker binary, then try the user's
- # path.
- #
- # Also note we have to check MD_EXEC_PREFIX before checking the
- # user's path. Unfortunately, there is no good way to get at the
- # value of MD_EXEC_PREFIX here. So we do a brute force search
- # through all the known MD_EXEC_PREFIX values. Ugh. This needs
- # to be fixed as part of the make/configure rewrite too.
-
- if test "x$exec_prefix" = xNONE; then
- if test "x$prefix" = xNONE; then
- test_prefix=/usr/local
- else
- test_prefix=$prefix
- fi
- else
- test_prefix=$exec_prefix
- fi
-
- # If the loop below does not find a linker, then use whatever
- # one we can find in the users's path. We are looking for a
- # ${build} -> ${target} linker.
- if test "x$program_prefix" != xNONE; then
- gcc_cv_ld=${program_prefix}ld$build_exeext
- elif test x$build != x$host && test x$build != x$target; then
- gcc_cv_ld=${target_noncanonical}-ld$build_exeext
- else
- gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
- fi
-
- if test x$host = x$build; then
- test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
- $test_prefix/libexec/gcc/$target_noncanonical \
- /usr/lib/gcc/$target_noncanonical/$gcc_version \
- /usr/lib/gcc/$target_noncanonical \
- $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
- $test_prefix/$target_noncanonical/bin"
- else
- test_dirs=
- fi
-
- if test x$build = x$target; then
- test_dirs="$test_dirs \
- /usr/libexec \
- /usr/ccs/gcc \
- /usr/ccs/bin \
- /udk/usr/ccs/bin \
- /bsd43/usr/lib/cmplrs/cc \
- /usr/cross64/usr/bin \
- /usr/lib/cmplrs/cc \
- /sysv/usr/lib/cmplrs/cc \
- /svr4/usr/lib/cmplrs/cc \
- /usr/bin"
- fi
-
- for dir in $test_dirs; do
- if test -x $dir/ld$build_exeext; then
- gcc_cv_ld=$dir/ld$build_exeext
- break;
- fi
- done
+else
+ AC_MSG_RESULT($gcc_cv_ld)
+ in_tree_ld=no
fi
-case $in_tree_ld in
- yes)
- AC_MSG_RESULT("newly built ld")
- ;;
- no)
- AC_MSG_RESULT($gcc_cv_ld)
- ;;
-esac
# Figure out what nm we will be using.
gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
-AC_MSG_CHECKING(what nm to use)
-in_tree_nm=no
-if test -x nm$build_exeext; then
+AS_VAR_SET_IF(gcc_cv_nm,, [
+if test -f $gcc_cv_binutils_srcdir/configure.in \
+ && test -f ../binutils/Makefile \
+ && test x$build = x$host; then
+ gcc_cv_nm=../binutils/nm-new$build_exeext
+elif test -x nm$build_exeext; then
gcc_cv_nm=./nm$build_exeext
-elif test -f $gcc_cv_binutils_srcdir/configure.in \
- && test -f ../binutils/Makefile; then
+elif test -x $NM_FOR_TARGET; then
+ gcc_cv_nm="$NM_FOR_TARGET"
+else
+ AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
+fi])
+
+AC_MSG_CHECKING(what nm to use)
+if test "$gcc_cv_nm" = ../binutils/nm-new$build_exeext; then
# Single tree build which includes binutils.
+ AC_MSG_RESULT(newly built nm)
in_tree_nm=yes
- gcc_cv_nm=./nm$build_exeext
- rm -f nm$build_exeext
- $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
-elif test "x$program_prefix" != xNONE; then
- gcc_cv_nm=${program_prefix}nm$build_exeext
-elif test x$build != x$host && test x$build != x$target; then
- gcc_cv_nm=${target_noncanonical}-nm$build_exeext
else
- gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
+ AC_MSG_RESULT($gcc_cv_nm)
+ in_tree_nm=no
fi
-case $in_tree_nm in
- yes) AC_MSG_RESULT("newly built nm") ;;
- no) AC_MSG_RESULT($gcc_cv_nm) ;;
+
+ORIGINAL_NM_FOR_TARGET=$gcc_cv_nm
+AC_SUBST(ORIGINAL_NM_FOR_TARGET)
+case "$ORIGINAL_NM_FOR_TARGET" in
+ ./nm | ./nm$build_exeext) ;;
+ *) AC_CONFIG_FILES(nm:exec-tool.in, [chmod +x nm]) ;;
esac
+
# Figure out what objdump we will be using.
-AC_MSG_CHECKING(what objdump to use)
-in_tree_objdump=no
-if test -x objdump$build_exeext; then
- gcc_cv_objdump=./objdump$build_exeext
-elif test -f $gcc_cv_binutils_srcdir/configure.in \
- && test -f ../binutils/Makefile; then
+AS_VAR_SET_IF(gcc_cv_objdump,, [
+if test -f $gcc_cv_binutils_srcdir/configure.in \
+ && test -f ../binutils/Makefile \
+ && test x$build = x$host; then
# Single tree build which includes binutils.
- in_tree_objdump=yes
+ gcc_cv_objdump=../binutils/objdump$build_exeext
+elif test -x objdump$build_exeext; then
gcc_cv_objdump=./objdump$build_exeext
- rm -f objdump$build_exeext
- $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
-elif test "x$program_prefix" != xNONE; then
- gcc_cv_objdump=${program_prefix}objdump$build_exeext
-elif test x$build != x$host && test x$build != x$target; then
- gcc_cv_objdump=${target_noncanonical}-objdump$build_exeext
+elif test -x $OBJDUMP_FOR_TARGET; then
+ gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
else
- gcc_cv_objdump=`echo objdump | \
- sed "${program_transform_name}"`$build_exeext
+ AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
+fi])
+
+AC_MSG_CHECKING(what objdump to use)
+if test "$gcc_cv_objdump" = ../binutils/objdump$build_exeext; then
+ # Single tree build which includes binutils.
+ AC_MSG_RESULT(newly built objdump)
+elif test x$gcc_cv_objdump = x; then
+ AC_MSG_RESULT(not found)
+else
+ AC_MSG_RESULT($gcc_cv_objdump)
fi
-case $in_tree_objdump in
- yes) AC_MSG_RESULT("newly built objdump") ;;
- no) AC_MSG_RESULT($gcc_cv_objdump) ;;
-esac
# Figure out what assembler alignment features are present.
gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
[Define if your assembler supports specifying the maximum number
of bytes to skip when using the GAS .p2align command.])])
+gcc_GAS_CHECK_FEATURE([.literal16], gcc_cv_as_literal16,
+ [2,8,0],,
+ [.literal16],,
+[AC_DEFINE(HAVE_GAS_LITERAL16, 1,
+ [Define if your assembler supports .literal16.])])
+
gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
[elf,2,9,0],,
[conftest_label1: .word 0
[ .weak foobar],,
[AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
+gcc_GAS_CHECK_FEATURE([.weakref], gcc_cv_as_weakref,
+ [2,17,0],,
+ [ .weakref foobar, barfnot],,
+[AC_DEFINE(HAVE_GAS_WEAKREF, 1, [Define if your assembler supports .weakref.])])
+
gcc_GAS_CHECK_FEATURE([.nsubspa comdat], gcc_cv_as_nsubspa_comdat,
[2,15,91],,
[ .SPACE $TEXT$
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
- -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ -].*$,\1,p'`
ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
+ ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
+ ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
+ ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
if test 0"$ld_date" -lt 20020404; then
if test -n "$ld_date"; then
# If there was date string, but was earlier than 2002-04-04, fail
# If there was no date string nor ld version number, something is wrong
gcc_cv_ld_hidden=no
else
- ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
- ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
- ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
test -z "$ld_vers_patch" && ld_vers_patch=0
if test "$ld_vers_major" -lt 2; then
gcc_cv_ld_hidden=no
EOF
# If the assembler didn't choke, and we can objdump,
# and we got the correct data, then succeed.
+ # The text in the here-document typically retains its unix-style line
+ # endings, while the output of objdump will use host line endings.
+ # Therefore, use diff -b for the comparisons.
if test x$gcc_cv_objdump != x \
&& $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
| tail -3 > conftest.got \
- && { cmp conftest.lit conftest.got > /dev/null 2>&1 \
- || cmp conftest.big conftest.got > /dev/null 2>&1; }
+ && { diff -b conftest.lit conftest.got > /dev/null 2>&1 \
+ || diff -b conftest.big conftest.got > /dev/null 2>&1; }
then
gcc_cv_as_eh_frame=yes
elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
[Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
- [elf,2,15,91], [--fatal-warnings],
+ [elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",@progbits,.foo,comdat])
if test $gcc_cv_as_comdat_group = yes; then
gcc_cv_as_comdat_group_percent=no
else
gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
- [elf,2,15,91], [--fatal-warnings],
+ [elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
fi
-AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
+if test $in_tree_ld != yes && test x"$ld_vers" != x; then
+ comdat_group=yes
+ if test 0"$ld_date" -lt 20050308; then
+ if test -n "$ld_date"; then
+ # If there was date string, but was earlier than 2005-03-08, fail
+ comdat_group=no
+ elif test "$ld_vers_major" -lt 2; then
+ comdat_group=no
+ elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
+ comdat_group=no
+ fi
+ fi
+else
+ # assume linkers other than GNU ld don't support COMDAT group
+ comdat_group=no
+fi
+if test $comdat_group = no; then
+ gcc_cv_as_comdat_group=no
+ gcc_cv_as_comdat_group_percent=no
+fi
+AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
[`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
-[Define 0/1 if your assembler supports COMDAT group.])
+[Define 0/1 if your assembler and linker support COMDAT groups.])
# Thread-local storage - the check is heavily parametrized.
conftest_s=
tls_first_major=2
tls_first_minor=14
;;
+ hppa*-*-linux*)
+ conftest_s='
+t1: .reg %r20
+t2: .reg %r21
+gp: .reg %r19
+ .section ".tdata","awT",@progbits
+foo: .long 25
+ .text
+ .align 4
+ addil LT%foo-$tls_gdidx$,gp
+ ldo RT%foo-$tls_gdidx$(%r1),%arg0
+ b __tls_get_addr
+ nop
+ addil LT%foo-$tls_ldidx$,gp
+ b __tls_get_addr
+ ldo RT%foo-$tls_ldidx$(%r1),%arg0
+ addil LR%foo-$tls_dtpoff$,%ret0
+ ldo RR%foo-$tls_dtpoff$(%r1),%t1
+ mfctl %cr27,%t1
+ addil LT%foo-$tls_ieoff$,gp
+ ldw RT%foo-$tls_ieoff$(%r1),%t2
+ add %t1,%t2,%t3
+ mfctl %cr27,%t1
+ addil LR%foo-$tls_leoff$,%t1
+ ldo RR%foo-$tls_leoff$(%r1),%t2'
+ tls_first_major=2
+ tls_first_minor=15
+ tls_as_opt=--fatal-warnings
+ ;;
+ arm*-*-*)
+ conftest_s='
+ .section ".tdata","awT",%progbits
+foo: .long 25
+ .text
+.word foo(gottpoff)
+.word foo(tpoff)
+.word foo(tlsgd)
+.word foo(tlsldm)
+.word foo(tlsldo)'
+ tls_first_major=2
+ tls_first_minor=17
+ ;;
i[34567]86-*-*)
conftest_s='
.section ".tdata","awT",@progbits
;;
sparc*-*-*)
case "$target" in
+ sparc*-sun-solaris2.[56789]*)
+ # TLS was introduced in the Solaris 9 4/04 release but
+ # we do not enable it by default on Solaris 9 either.
+ if test "x$enable_tls" = xyes ; then
+ on_solaris=yes
+ else
+ enable_tls=no;
+ fi
+ ;;
sparc*-sun-solaris2.*)
on_solaris=yes
;;
;;
changequote([,])dnl
esac
-if test -z "$tls_first_major"; then
+set_have_as_tls=no
+if test "x$enable_tls" = xno ; then
+ : # TLS explicitly disabled.
+elif test "x$enable_tls" = xyes ; then
+ set_have_as_tls=yes # TLS explicitly enabled.
+elif test -z "$tls_first_major"; then
: # If we don't have a check, assume no support.
else
gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
- [AC_DEFINE(HAVE_AS_TLS, 1,
- [Define if your assembler supports thread-local storage.])])
+ [set_have_as_tls=yes])
+fi
+if test $set_have_as_tls = yes ; then
+ AC_DEFINE(HAVE_AS_TLS, 1,
+ [Define if your assembler supports thread-local storage.])
fi
# Target-specific assembler checks.
lda $29, 0($29) !gpdisp!3],,
[AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
[Define if your assembler supports explicit relocations.])])
+ gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
+ gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
+[ .set nomacro
+ .text
+ ldq $27, a($29) !literal!1
+ jsr $26, ($27), a !lituse_jsrdirect!1],,
+ [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
+ [Define if your assembler supports the lituse_jsrdirect relocation.])])
;;
cris-*-*)
[AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
[Define if your assembler supports the Sun syntax for cmov.])])
+ gcc_GAS_CHECK_FEATURE([ffreep mnemonic],
+ gcc_cv_as_ix86_ffreep,,,
+ [ffreep %st(1)],,
+ [AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
+ [Define if your assembler supports the ffreep mnemonic.])])
+
+ gcc_GAS_CHECK_FEATURE([sahf mnemonic],
+ gcc_cv_as_ix86_sahf,,,
+ [sahf],,
+ [AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
+ [Define if your assembler supports the sahf mnemonic.])])
+
+ gcc_GAS_CHECK_FEATURE([different section symbol subtraction],
+ gcc_cv_as_ix86_diff_sect_delta,,,
+ [.section .rodata
+.L1:
+ .long .L2-.L1
+ .long .L3-.L1
+ .text
+.L3: nop
+.L2: nop],,
+ [AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
+ [Define if your assembler supports the subtraction of symbols in different sections.])])
+
# This one is used unconditionally by i386.[ch]; it is to be defined
# to 1 if the feature is present, 0 otherwise.
gcc_GAS_CHECK_FEATURE([GOTOFF in data],
[AC_DEFINE(HAVE_AS_POPCNTB, 1,
[Define if your assembler supports popcntb field.])])
+ case $target in
+ *-*-aix*) conftest_s=' .machine "pwr5x"
+ .csect .text[[PR]]
+ frin 1,1';;
+ *) conftest_s=' .machine power5
+ .text
+ frin 1,1';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([fp round support],
+ gcc_cv_as_powerpc_fprnd, [2,17,0],,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_FPRND, 1,
+ [Define if your assembler supports fprnd.])])
+
+ case $target in
+ *-*-aix*) conftest_s=' .machine "pwr6"
+ .csect .text[[PR]]
+ mffgpr 1,3';;
+ *) conftest_s=' .machine power6
+ .text
+ mffgpr 1,3';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([move fp gpr support],
+ gcc_cv_as_powerpc_mfpgpr, [9,99,0],,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_MFPGPR, 1,
+ [Define if your assembler supports mffgpr and mftgpr.])])
+
+ case $target in
+ *-*-aix*) conftest_s=' .csect .text[[PR]]
+LCF..0:
+ addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
+ *-*-darwin*)
+ conftest_s=' .text
+LCF0:
+ addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
+ *) conftest_s=' .text
+.LCF0:
+ addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([rel16 relocs],
+ gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_REL16, 1,
+ [Define if your assembler supports R_PPC_REL16 relocs.])])
+
+ case $target in
+ *-*-aix*) conftest_s=' .machine "pwr6"
+ .csect .text[[PR]]
+ cmpb 3,4,5';;
+ *) conftest_s=' .machine power6
+ .text
+ cmpb 3,4,5';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([compare bytes support],
+ gcc_cv_as_powerpc_cmpb, [9,99,0], -a32,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_CMPB, 1,
+ [Define if your assembler supports cmpb.])])
+
+ case $target in
+ *-*-aix*) conftest_s=' .machine "pwr6"
+ .csect .text[[PR]]
+ dadd 1,2,3';;
+ *) conftest_s=' .machine power6
+ .text
+ dadd 1,2,3';;
+ esac
+
+ gcc_GAS_CHECK_FEATURE([decimal float support],
+ gcc_cv_as_powerpc_dfp, [9,99,0], -a32,
+ [$conftest_s],,
+ [AC_DEFINE(HAVE_AS_DFP, 1,
+ [Define if your assembler supports DFP instructions.])])
;;
mips*-*-*)
then target_cpu_default=MASK_EXPLICIT_RELOCS
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
fi])
+ gcc_GAS_CHECK_FEATURE([-mno-shared support],
+ gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
+ [AC_DEFINE(HAVE_AS_NO_SHARED, 1,
+ [Define if the assembler understands -mno-shared.])])
+ ;;
+esac
+# Mips and HP-UX need the GNU assembler.
+# Linux on IA64 might be able to use the Intel assembler.
+
+case "$target" in
+ mips*-*-* | *-*-hpux* )
if test x$gas_flag = xyes \
|| test x"$host" != x"$build" \
|| test ! -x "$gcc_cv_as" \
fi
;;
esac
+
# ??? Not all targets support dwarf2 debug_line, even within a version
# of gas. Moreover, we need to emit a valid instruction to trigger any
# info to the output file. So, as supported targets are added to gas 2.11,
case "$target" in
i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
| x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
- | xstormy16*-*-* | cris-*-* | xtensa-*-*)
+ | xstormy16*-*-* | cris-*-* | xtensa-*-* | bfin-*-* | score*-*-* | spu-*-*)
insn="nop"
;;
ia64*-*-* | s390*-*-*)
[Define if your assembler supports the --gstabs option.])])
fi
+AC_CACHE_CHECK([assembler for tolerance to line number 0],
+ [gcc_cv_as_line_zero],
+ [gcc_cv_as_line_zero=no
+ if test $in_tree_gas = yes; then
+ gcc_GAS_VERSION_GTE_IFELSE(2, 16, 91, [gcc_cv_as_line_zero=yes])
+ elif test "x$gcc_cv_as" != x; then
+ { echo '# 1 "test.s" 1'; echo '# 0 "" 2'; } > conftest.s
+ if AC_TRY_COMMAND([$gcc_cv_as -o conftest.o conftest.s >&AS_MESSAGE_LOG_FD 2>conftest.out]) &&
+ test "x`cat conftest.out`" = x
+ then
+ gcc_cv_as_line_zero=yes
+ else
+ echo "configure: failed program was" >&AS_MESSAGE_LOG_FD
+ cat conftest.s >&AS_MESSAGE_LOG_FD
+ echo "configure: error output was" >&AS_MESSAGE_LOG_FD
+ cat conftest.out >&AS_MESSAGE_LOG_FD
+ fi
+ rm -f conftest.o conftest.s conftest.out
+ fi])
+if test "x$gcc_cv_as_line_zero" = xyes; then
+ AC_DEFINE([HAVE_AS_LINE_ZERO], 1,
+[Define if the assembler won't complain about a line such as # 0 "" 2.])
+fi
+
AC_MSG_CHECKING(linker read-only and read-write section mixing)
gcc_cv_ld_ro_rw_mix=unknown
if test $in_tree_ld = yes ; then
fi
AC_MSG_RESULT($gcc_cv_ld_pie)
+AC_MSG_CHECKING(linker EH-compatible garbage collection of sections)
+gcc_cv_ld_eh_gc_sections=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 17 -o "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_eh_gc_sections=yes
+ fi
+elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
+ cat > conftest.s <<EOF
+ .section .text
+.globl _start
+ .type _start, @function
+_start:
+ .long foo
+ .size _start, .-_start
+ .section .text.foo,"ax",@progbits
+ .type foo, @function
+foo:
+ .long 0
+ .size foo, .-foo
+ .section .gcc_except_table.foo,"a",@progbits
+.L0:
+ .long 0
+ .section .eh_frame,"a",@progbits
+ .long .L0
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
+ if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
+ | grep "gc-sections option ignored" > /dev/null; then
+ gcc_cv_ld_eh_gc_sections=no
+ elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ gcc_cv_ld_eh_gc_sections=yes
+ # If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
+ if test x$gcc_cv_as_comdat_group != xyes; then
+ gcc_cv_ld_eh_gc_sections=no
+ cat > conftest.s <<EOF
+ .section .text
+.globl _start
+ .type _start, @function
+_start:
+ .long foo
+ .size _start, .-_start
+ .section .gnu.linkonce.t.foo,"ax",@progbits
+ .type foo, @function
+foo:
+ .long 0
+ .size foo, .-foo
+ .section .gcc_except_table.foo,"a",@progbits
+.L0:
+ .long 0
+ .section .eh_frame,"a",@progbits
+ .long .L0
+EOF
+ if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1; then
+ if $gcc_cv_ld -o conftest conftest.o --entry=_start --gc-sections 2>&1 \
+ | grep "gc-sections option ignored" > /dev/null; then
+ gcc_cv_ld_eh_gc_sections=no
+ elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
+ gcc_cv_ld_eh_gc_sections=yes
+ fi
+ fi
+ fi
+ fi
+ fi
+ rm -f conftest.s conftest.o conftest
+fi
+case "$target" in
+ hppa*-*-linux*)
+ # ??? This apparently exposes a binutils bug with PC-relative relocations.
+ gcc_cv_ld_eh_gc_sections=no
+ ;;
+esac
+if test x$gcc_cv_ld_eh_gc_sections = xyes; then
+ AC_DEFINE(HAVE_LD_EH_GC_SECTIONS, 1,
+ [Define if your linker supports garbage collection of
+ sections in presence of EH frames.])
+fi
+AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
+
# --------
# UNSORTED
# --------
[Define if your linker supports --as-needed and --no-as-needed options.])
fi
-case "$target" in
- powerpc64*-*-linux*)
+case "$target:$tm_file" in
+ powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
AC_CACHE_CHECK(linker support for omitting dot symbols,
gcc_cv_ld_no_dot_syms,
[gcc_cv_ld_no_dot_syms=no
[gcc_cv_ld_sysroot=no
if test $in_tree_ld = yes ; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
- gcc_cv_ld_sysroot = yes
+ gcc_cv_ld_sysroot=yes
fi
elif test x$gcc_cv_ld != x; then
if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
fi
if test x$with_sysroot = x && test x$host = x$target \
- && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
+ && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" \
+ && test "$prefix" != "NONE"; then
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
[Define to PREFIX/include if cpp should also search that directory.])
fi
+# Test for stack protector support in target C library.
+AC_CACHE_CHECK(__stack_chk_fail in target C library,
+ gcc_cv_libc_provides_ssp,
+ [gcc_cv_libc_provides_ssp=no
+ case "$target" in
+ *-*-linux*)
+ if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
+ if test "x$with_sysroot" = x; then
+ glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
+ elif test "x$with_build_sysroot" != "x"; then
+ glibc_header_dir="${with_build_sysroot}/usr/include"
+ elif test "x$with_sysroot" = xyes; then
+ glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
+ else
+ glibc_header_dir="${with_sysroot}/usr/include"
+ fi
+ else
+ glibc_header_dir=/usr/include
+ fi
+ # glibc 2.4 and later provides __stack_chk_fail and
+ # either __stack_chk_guard, or TLS access to stack guard canary.
+ if test -f $glibc_header_dir/features.h \
+ && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
+ $glibc_header_dir/features.h > /dev/null; then
+ if $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+([1-9][0-9]|[3-9])' \
+ $glibc_header_dir/features.h > /dev/null; then
+ gcc_cv_libc_provides_ssp=yes
+ elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC__[ ]+2' \
+ $glibc_header_dir/features.h > /dev/null \
+ && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
+ $glibc_header_dir/features.h > /dev/null; then
+ gcc_cv_libc_provides_ssp=yes
+ fi
+ fi
+ ;;
+ *-*-darwin*)
+ AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
+ [echo "no __stack_chk_fail on this target"])
+ ;;
+ *) gcc_cv_libc_provides_ssp=no ;;
+ esac])
+
+if test x$gcc_cv_libc_provides_ssp = xyes; then
+ AC_DEFINE(TARGET_LIBC_PROVIDES_SSP, 1,
+ [Define if your target C library provides stack protector support])
+fi
+
+# Check if TFmode long double should be used by default or not.
+# Some glibc targets used DFmode long double, but with glibc 2.4
+# and later they can use TFmode.
+case "$target" in
+ powerpc*-*-linux* | \
+ powerpc*-*-gnu* | \
+ sparc*-*-linux* | \
+ s390*-*-linux* | \
+ alpha*-*-linux*)
+ AC_ARG_WITH(long-double-128,
+[ --with-long-double-128 Use 128-bit long double by default.],
+ gcc_cv_target_ldbl128="$with_long_double_128",
+ [gcc_cv_target_ldbl128=no
+ if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
+ if test "x$with_sysroot" = x; then
+ glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
+ elif test "x$with_build_sysroot" != "x"; then
+ glibc_header_dir="${with_build_sysroot}/usr/include"
+ elif test "x$with_sysroot" = xyes; then
+ glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
+ else
+ glibc_header_dir="${with_sysroot}/usr/include"
+ fi
+ else
+ glibc_header_dir=/usr/include
+ fi
+changequote(,)dnl
+ grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
+ $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
+ && gcc_cv_target_ldbl128=yes
+changequote([,])dnl
+ ])
+ ;;
+esac
+if test x$gcc_cv_target_ldbl128 = xyes; then
+ AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1,
+ [Define if TFmode long double should be the default])
+fi
+
# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
[ --with-gc={page,zone} choose the garbage collection mechanism to use
# Make empty files to contain the specs and options for each language.
# Then add #include lines to for a compiler that has specs and/or options.
+subdirs=
lang_opt_files=
lang_specs_files=
lang_tree_files=
-for subdir in . $subdirs
-do
- if test -f $srcdir/$subdir/lang.opt; then
- lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
- fi
- if test -f $srcdir/$subdir/lang-specs.h; then
- lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
- fi
- if test -f $srcdir/$subdir/$subdir-tree.def; then
- lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
- fi
-done
-
# These (without "all_") are set in each config-lang.in.
# `language' must be a single word so is spelled singularly.
all_languages=
-all_boot_languages=
all_compilers=
-all_stagestuff=
-all_outputs='Makefile gccbug mklibgcc libada-mk'
+all_outputs='Makefile gccbug libada-mk'
# List of language makefile fragments.
all_lang_makefrags=
# List of language subdirectory makefiles. Deprecated.
all_lang_makefiles=
-# Files for gengtype
+# Additional files for gengtype
all_gtfiles="$target_gtfiles"
-# Files for gengtype with language
-all_gtfiles_files_langs=
-all_gtfiles_files_files=
+
+# These are the languages that are set in --enable-languages,
+# and are available in the GCC tree.
+all_selected_languages=
# Add the language fragments.
# Languages are added via two mechanisms. Some information must be
language_hooks="Make-hooks"
-for s in $subdirs
+for lang in ${srcdir}/*/config-lang.in
do
- language=
- boot_language=
- compilers=
- stagestuff=
- outputs=
- gtfiles=
- . ${srcdir}/$s/config-lang.in
- if test "x$language" = x
- then
- echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
- exit 1
- fi
- all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
- if test -f ${srcdir}/$s/Makefile.in
- then all_lang_makefiles="$s/Makefile"
- fi
- all_languages="$all_languages $language"
- if test "x$boot_language" = xyes
- then
- all_boot_languages="$all_boot_languages $language"
- fi
- all_compilers="$all_compilers $compilers"
- all_stagestuff="$all_stagestuff $stagestuff"
- all_outputs="$all_outputs $outputs"
- all_gtfiles="$all_gtfiles $gtfiles"
- for f in $gtfiles
- do
- all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
- all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
- done
+changequote(,)dnl
+ test "$lang" = "${srcdir}/*/config-lang.in" && continue
+
+ lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
+ if test "x$lang_alias" = x
+ then
+ echo "$lang doesn't set \$language." 1>&2
+ exit 1
+ fi
+ subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
+ subdirs="$subdirs $subdir"
+ case ",$enable_languages," in
+ *,$lang_alias,*)
+ all_selected_languages="$all_selected_languages $lang_alias"
+ if test -f $srcdir/$subdir/lang-specs.h; then
+ lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
+ fi
+ ;;
+ esac
+changequote([,])dnl
+
+ language=
+ boot_language=
+ compilers=
+ outputs=
+ gtfiles=
+ subdir_requires=
+ . ${srcdir}/$subdir/config-lang.in
+ if test "x$language" = x
+ then
+ echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
+ exit 1
+ fi
+
+ ok=:
+ case ",$enable_languages," in
+ *,$lang_alias,*) ;;
+ *)
+ for i in $subdir_requires; do
+ test -f "${srcdir}/$i/config-lang.in" && continue
+ ok=false
+ break
+ done
+ ;;
+ esac
+ $ok || continue
+
+ all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
+ if test -f $srcdir/$subdir/lang.opt; then
+ lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
+ fi
+ if test -f $srcdir/$subdir/$subdir-tree.def; then
+ lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
+ fi
+ if test -f ${srcdir}/$subdir/Makefile.in
+ then all_lang_makefiles="$subdir/Makefile"
+ fi
+ all_languages="$all_languages $language"
+ all_compilers="$all_compilers $compilers"
+ all_outputs="$all_outputs $outputs"
+ all_gtfiles="$all_gtfiles [[$subdir]] $gtfiles"
done
# Pick up gtfiles for c
gtfiles=
-s="c"
. ${srcdir}/c-config-lang.in
-all_gtfiles="$all_gtfiles $gtfiles"
-for f in $gtfiles
-do
- all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
- all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
-done
+all_gtfiles="$all_gtfiles [[c]] $gtfiles"
check_languages=
-for language in $all_languages
+for language in $all_selected_languages
do
- check_languages="$check_languages check-$language"
+ check_languages="$check_languages check-$language"
done
# We link each language in with a set of hooks, reached indirectly via
-# lang.${target}.
+# lang.${target}. Only do so for selected languages.
rm -f Make-hooks
touch Make-hooks
-target_list="all.build all.cross start.encap rest.encap tags \
- install-normal install-common install-man \
- uninstall info man srcextra srcman srcinfo \
- mostlyclean clean distclean maintainer-clean \
- stage1 stage2 stage3 stage4 stageprofile stagefeedback"
+target_list="all.cross start.encap rest.encap tags \
+ install-common install-man install-info install-pdf dvi pdf \
+ html uninstall info man srcextra srcman srcinfo \
+ mostlyclean clean distclean maintainer-clean"
+
for t in $target_list
do
x=
- for lang in $all_languages
+ for lang in $all_selected_languages
do
- x="$x $lang.$t"
+ x="$x $lang.$t"
done
echo "lang.$t: $x" >> Make-hooks
done
installed in a compiler-specific directory])
AC_ARG_WITH(slibdir,
-[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
+[ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
slibdir="$with_slibdir",
if test "${enable_version_specific_runtime_libs+set}" = set; then
slibdir='$(libsubdir)'
objdir=`${PWDCMD-pwd}`
AC_SUBST(objdir)
+AC_ARG_WITH(datarootdir,
+[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
+datarootdir="\${prefix}/$with_datarootdir",
+datarootdir='$(prefix)/share')
+AC_SUBST(datarootdir)
+
+AC_ARG_WITH(docdir,
+[ --with-docdir=DIR Install documentation in DIR [[DATAROOTDIR]]],
+docdir="\${prefix}/$with_docdir",
+docdir='$(datarootdir)')
+AC_SUBST(docdir)
+
+AC_ARG_WITH(htmldir,
+[ --with-htmldir=DIR html documentation in in DIR [[DOCDIR]]],
+htmldir="\${prefix}/$with_htmldir",
+htmldir='$(docdir)')
+AC_SUBST(htmldir)
+
# Substitute configuration variables
AC_SUBST(subdirs)
AC_SUBST(srcdir)
-AC_SUBST(all_boot_languages)
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
-AC_SUBST(all_gtfiles_files_langs)
-AC_SUBST(all_gtfiles_files_files)
AC_SUBST(all_lang_makefrags)
AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages)
-AC_SUBST(all_stagestuff)
+AC_SUBST(all_selected_languages)
AC_SUBST(build_exeext)
AC_SUBST(build_install_headers_dir)
AC_SUBST(build_xm_file_list)
AC_SUBST(build_xm_include_list)
AC_SUBST(build_xm_defines)
AC_SUBST(check_languages)
-AC_SUBST(cc_set_by_configure)
-AC_SUBST(quoted_cc_set_by_configure)
AC_SUBST(cpp_install_dir)
AC_SUBST(xmake_file)
AC_SUBST(tmake_file)
AC_SUBST(float_h_file)
AC_SUBST(gcc_config_arguments)
AC_SUBST(gcc_gxx_include_dir)
-AC_SUBST(libstdcxx_incdir)
AC_SUBST(host_exeext)
AC_SUBST(host_xm_file_list)
AC_SUBST(host_xm_include_list)
AC_SUBST(objc_boehm_gc)
AC_SUBST(out_file)
AC_SUBST(out_object_file)
-AC_SUBST(stage_prefix_set_by_configure)
-AC_SUBST(quoted_stage_prefix_set_by_configure)
AC_SUBST(thread_file)
AC_SUBST(tm_file_list)
AC_SUBST(tm_include_list)
do
test -d $d || mkdir $d
done
-# If the host supports symlinks, point stage[1234] at ../stage[1234] so
-# bootstrapping and the installation procedure can still use
-# CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
-# FLAGS_TO_PASS has been modified to solve the problem there.
-# This is virtually a duplicate of what happens in configure.lang; we do
-# an extra check to make sure this only happens if ln -s can be used.
-case "$LN_S" in
- *-s*)
- for d in ${subdirs} ; do
- STARTDIR=`${PWDCMD-pwd}`
- cd $d
- for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
- do
- rm -f $t
- $LN_S ../$t $t 2>/dev/null
- done
- cd $STARTDIR
- done
- ;;
-esac
],
[subdirs='$subdirs'])
AC_OUTPUT