slibdir
dollar
gcc_tooldir
+LTO_USE_LIBELF
+LTO_BINARY_READER
enable_lto
MAINT
zlibinc
enable_sjlj_exceptions
with_system_libunwind
enable_secureplt
+enable_leading_mingw64_underscores
enable_cld
enable_win32_registry
enable_static
enable_fast_install
enable_libtool_lock
with_plugin_ld
+enable_comdat
enable_gnu_unique_object
enable_linker_build_id
with_long_double_128
--enable-sjlj-exceptions
arrange to use setjmp/longjmp exception handling
--enable-secureplt enable -msecure-plt by default for PowerPC
+ --enable-leading-mingw64-underscores
+ Enable leading underscores on 64 bit mingw targets
--enable-cld enable -mcld by default for 32bit x86
--disable-win32-registry
disable lookup of installation paths in the
--enable-fast-install[=PKGS]
optimize for fast installation [default=yes]
--disable-libtool-lock avoid locking (might break parallel builds)
+ --enable-comdat enable COMDAT group support
--enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on
glibc systems
--enable-linker-build-id
done
+save_CPPFLAGS="$CPPFLAGS"
+save_LIBS="$LIBS"
+LIBS="$LIBS $LIBELFLIBS"
+for ac_func in elf_getshdrstrndx
+do :
+ ac_fn_c_check_func "$LINENO" "elf_getshdrstrndx" "ac_cv_func_elf_getshdrstrndx"
+if test "x$ac_cv_func_elf_getshdrstrndx" = x""yes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_ELF_GETSHDRSTRNDX 1
+_ACEOF
+
+else
+ for ac_func in elf_getshstrndx
+do :
+ ac_fn_c_check_func "$LINENO" "elf_getshstrndx" "ac_cv_func_elf_getshstrndx"
+if test "x$ac_cv_func_elf_getshstrndx" = x""yes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_ELF_GETSHSTRNDX 1
+_ACEOF
+ if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdlib.h>
+#include <libelf.h>
+int main()
+{
+ return elf_getshstrndx (NULL, 0) == 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+$as_echo "#define HAVE_ELF_GETSHSTRNDX_GABI 1" >>confdefs.h
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+done
+
+
+fi
+done
+
+LIBS="$save_LIBS"
+CPPFLAGS="$save_CPPFLAGS"
+
if test x$ac_cv_func_mbstowcs = xyes; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mbstowcs works" >&5
$as_echo_n "checking whether mbstowcs works... " >&6; }
fi
+# Check whether --enable-leading-mingw64-underscores was given.
+if test "${enable_leading_mingw64_underscores+set}" = set; then :
+ enableval=$enable_leading_mingw64_underscores;
+fi
+
+if test x"$enable_leading_mingw64_underscores" = xyes ; then :
+
+$as_echo "#define USE_MINGW64_LEADING_UNDERSCORES 1" >>confdefs.h
+
+fi
+
# Check whether --enable-cld was given.
if test "${enable_cld+set}" = set; then :
enableval=$enable_cld;
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 17040 "configure"
+#line 17111 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 17146 "configure"
+#line 17217 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
_ACEOF
+# Check to see if we are using gold instead of ld
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using gold" >&5
+$as_echo_n "checking whether we are using gold... " >&6; }
+ld_is_gold=no
+if test x$gcc_cv_ld != x; then
+ if $gcc_cv_ld --version 2>/dev/null | sed 1q \
+ | grep "GNU gold" > /dev/null; then
+ ld_is_gold=yes
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_is_gold" >&5
+$as_echo "$ld_is_gold" >&6; }
+
ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
case "$ORIGINAL_LD_FOR_TARGET" in
if test $in_tree_ld != yes ; then
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
- if echo "$ld_ver" | grep GNU > /dev/null; then
+ if test x"$ld_is_gold" = xyes; then
+ gcc_cv_ld_hidden=yes
+ elif echo "$ld_ver" | grep GNU > /dev/null; then
ld_vers=`echo $ld_ver | sed -n \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\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]*\.\([0-9]*\)'`
+ else
+ case "${target}" in
+ *-*-solaris2*)
+ #
+ # Solaris 2 ld -V output looks like this for a regular version:
+ #
+ # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1699
+ #
+ # but test versions add stuff at the end:
+ #
+ # ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
+ #
+ ld_ver=`$gcc_cv_ld -V 2>&1`
+ if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'`
+ ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
+ ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
+ fi
+ ;;
+ esac
fi
fi
gcc_cv_ld_hidden=yes
;;
*-*-solaris2.9* | *-*-solaris2.1[0-9]*)
+ # Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
+ # .symbolic was only added in Solaris 9 12/02.
gcc_cv_ld_hidden=yes
;;
*)
$as_echo "$gcc_cv_as_comdat_group_percent" >&6; }
fi
-if test $in_tree_ld = yes ; then
+if test x"$ld_is_gold" = xyes; then
+ comdat_group=yes
+elif test $in_tree_ld = yes ; then
comdat_group=no
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
comdat_group=yes
fi
-elif test x"$ld_vers" != x; then
+elif echo "$ld_ver" | grep GNU > /dev/null; then
comdat_group=yes
if test 0"$ld_date" -lt 20050308; then
if test -n "$ld_date"; then
fi
fi
else
- # assume linkers other than GNU ld don't support COMDAT group
- comdat_group=no
+ case "${target}" in
+ *-*-solaris2.1[1-9]*)
+ # Sun ld has COMDAT group support since Solaris 9, but it doesn't
+ # interoperate with GNU as until Solaris 11 build 130, i.e. ld
+ # version 1.688.
+ #
+ # FIXME: Maybe need to refine later when COMDAT group support with
+ # Sun as is implemented.
+ if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 1688; then
+ comdat_group=yes
+ else
+ comdat_group=no
+ fi
+ ;;
+ *)
+ # Assume linkers other than GNU ld don't support COMDAT group.
+ comdat_group=no
+ ;;
+ esac
fi
+# Allow overriding the automatic COMDAT group tests above.
+# Check whether --enable-comdat was given.
+if test "${enable_comdat+set}" = set; then :
+ enableval=$enable_comdat; comdat_group="$enable_comdat"
+fi
+
if test $comdat_group = no; then
gcc_cv_as_comdat_group=no
gcc_cv_as_comdat_group_percent=no
;;
i[34567]86-*-*)
case "$target" in
- i[34567]86-*-solaris2.[56789]*)
+ i[34567]86-*-solaris2.[89]*)
# 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$enable_tls" = xyes ; then
;;
sparc*-*-*)
case "$target" in
- sparc*-sun-solaris2.[56789]*)
+ sparc*-sun-solaris2.[89]*)
# 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
$as_echo "#define HAVE_GAS_PE_SECREL32_RELOC 1" >>confdefs.h
fi
+ # Test if the assembler supports the extended form of the .section
+ # directive that specifies section alignment. LTO support uses this,
+ # but normally only after installation, so we warn but don't fail the
+ # configure if LTO is enabled but the assembler does not support it.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .section with alignment" >&5
+$as_echo_n "checking assembler for .section with alignment... " >&6; }
+if test "${gcc_cv_as_section_has_align+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ gcc_cv_as_section_has_align=no
+ if test $in_tree_gas = yes; then
+ if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 20 \) \* 1000 + 1`
+ then gcc_cv_as_section_has_align=yes
+fi
+ elif test x$gcc_cv_as != x; then
+ echo '.section lto_test,"dr0"' > conftest.s
+ if { ac_try='$gcc_cv_as $gcc_cv_as_flags -fatal-warnings -o conftest.o conftest.s >&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ gcc_cv_as_section_has_align=yes
+ else
+ echo "configure: failed program was" >&5
+ cat conftest.s >&5
+ fi
+ rm -f conftest.o conftest.s
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_section_has_align" >&5
+$as_echo "$gcc_cv_as_section_has_align" >&6; }
+
+ if test x$gcc_cv_as_section_has_align != xyes; then
+ case ",$enable_languages," in
+ *,lto,*)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded." >&5
+$as_echo "$as_me: WARNING: LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded." >&2;}
+ ;;
+ esac
+ fi
;;
esac
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
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
# If no COMDAT groups, the compiler will emit .gnu.linkonce.t. sections.
if test x$gcc_cv_as_comdat_group != xyes; then
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
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
fi
fi
enable_lto=yes
+ # LTO needs to speak the platform's object file format, and has a
+ # number of implementations of the required binary file access APIs.
+ # ELF is the most common, and default. We only link libelf if ELF
+ # is indeed the selected format.
+ LTO_BINARY_READER=${lto_binary_reader}
+ LTO_USE_LIBELF=-lelf
+ if test "x$lto_binary_reader" != "xlto-elf" ; then
+ LTO_USE_LIBELF=
+ fi
+
+
;;
*) ;;
esac
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
+ case "${host}" in
+ *-*-darwin*)
+ export_sym_check="$gcc_cv_nm -g"
+ ;;
+ *)
+ export_sym_check="$gcc_cv_objdump -T"
+ ;;
+ esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for exported symbols" >&5
$as_echo_n "checking for exported symbols... " >&6; }
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
: # No need to use a flag
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -rdynamic" >&5
$as_echo_n "checking for -rdynamic... " >&6; }
${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
- if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ if $export_sym_check conftest | grep foobar > /dev/null; then
+ plugin_rdynamic=yes
pluginlibs="-rdynamic"
else
+ plugin_rdynamic=no
enable_plugin=no
fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $plugin_rdynamic" >&5
+$as_echo "$plugin_rdynamic" >&6; }
fi
# Check -ldl
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS -fPIC -shared"
+ case "${host}" in
+ *-*-darwin*)
+ LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
+ ;;
+ *)
+ LDFLAGS="$LDFLAGS -fPIC -shared"
+ ;;
+ esac
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fPIC -shared" >&5
$as_echo_n "checking for -fPIC -shared... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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