gettimeofday mbstowcs wcswidth mmap mincore setlocale \
gcc_UNLOCKED_FUNCS)
-save_CPPFLAGS="$CPPFLAGS"
-save_LIBS="$LIBS"
-LIBS="$LIBS $LIBELFLIBS"
-AC_CHECK_FUNCS(elf_getshdrstrndx,,
- [AC_CHECK_FUNCS(elf_getshstrndx,
- [AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
-#include <libelf.h>
-int main()
-{
- return elf_getshstrndx (NULL, 0) == 0;
-}]])], AC_DEFINE(HAVE_ELF_GETSHSTRNDX_GABI, 1,
- [Define if elf_getshstrndx has gABI conformant return values.]))])]
- )
-LIBS="$save_LIBS"
-CPPFLAGS="$save_CPPFLAGS"
-
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
[ AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
[ --enable-secureplt enable -msecure-plt by default for PowerPC],
[], [])
-AC_ARG_ENABLE(leading-mingw64-underscores,
- AS_HELP_STRING([--enable-leading-mingw64-underscores],
- [Enable leading underscores on 64 bit mingw targets]),
- [],[])
-AS_IF([ test x"$enable_leading_mingw64_underscores" = xyes ],
- [AC_DEFINE(USE_MINGW64_LEADING_UNDERSCORES, 1,
- [Define if we should use leading underscore on 64 bit mingw targets])])
-
AC_ARG_ENABLE(cld,
[ --enable-cld enable -mcld by default for 32bit x86], [],
[enable_cld=no])
AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET)
AC_DEFINE_UNQUOTED(PLUGIN_LD, "$PLUGIN_LD", [Specify plugin linker])
-# Check to see if we are using gold instead of ld
-AC_MSG_CHECKING(whether we are using gold)
-ld_is_gold=no
-if test x$gcc_cv_ld != x; then
- if $gcc_cv_ld --version 2>/dev/null | sed 1q \
- | grep "GNU gold" > /dev/null; then
- ld_is_gold=yes
- fi
-fi
-AC_MSG_RESULT($ld_is_gold)
-
ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
AC_SUBST(ORIGINAL_LD_FOR_TARGET)
case "$ORIGINAL_LD_FOR_TARGET" in
gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
[elf,2,13,0],,
[ .hidden foobar
-foobar:],[
-# Solaris 9/x86 as incorrectly emits an alias for a hidden symbol with
-# STV_HIDDEN, so disable .hidden support if so.
-case "${target}" in
- i?86-*-solaris2*)
- if test x$gcc_cv_as != x && test x$gcc_cv_objdump != x; then
- cat > conftest.s <<EOF
-.globl hidden
- .hidden hidden
-hidden:
-.globl default
- .set default,hidden
-EOF
- if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
- && $gcc_cv_objdump -t conftest.o 2>/dev/null | \
- grep '\.hidden default' > /dev/null; then
- gcc_cv_as_hidden=no
- else
- gcc_cv_as_hidden=yes
- fi
- else
- # Assume bug is present if objdump is missing.
- gcc_cv_as_hidden=no
- fi
- ;;
- *)
- gcc_cv_as_hidden=yes
- ;;
-esac])
+foobar:])
changequote(,)dnl
if test $in_tree_ld != yes ; then
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
- if test x"$ld_is_gold" = xyes; then
- gcc_cv_ld_hidden=yes
- elif echo "$ld_ver" | grep GNU > /dev/null; then
+ if 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
changequote([,])dnl
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
;;
*)
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
fi
-if test x"$ld_is_gold" = xyes; then
- comdat_group=yes
-elif test $in_tree_ld = yes ; then
+if 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 $in_tree_ld_is_elf = yes; then
comdat_group=yes
fi
-elif echo "$ld_ver" | grep GNU > /dev/null; then
+elif test x"$ld_vers" != x; then
comdat_group=yes
if test 0"$ld_date" -lt 20050308; then
if test -n "$ld_date"; then
fi
fi
else
-changequote(,)dnl
- case "${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
-changequote([,])dnl
+ # assume linkers other than GNU ld don't support COMDAT group
+ comdat_group=no
fi
-# Allow overriding the automatic COMDAT group tests above.
-AC_ARG_ENABLE(comdat,
- [AS_HELP_STRING([--enable-comdat], [enable COMDAT group support])],
- [comdat_group="$enable_comdat"])
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.[89]*)
+ i[34567]86-*-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$enable_tls" = xyes ; then
;;
sparc*-*-*)
case "$target" in
- sparc*-sun-solaris2.[89]*)
+ 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$enable_tls" = xyes ; then
rm -f conftest],
[AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
[Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
- # Test if the assembler supports the extended form of the .section
- # directive that specifies section alignment. LTO support uses this,
- # but normally only after installation, so we warn but don't fail the
- # configure if LTO is enabled but the assembler does not support it.
- gcc_GAS_CHECK_FEATURE([.section with alignment], gcc_cv_as_section_has_align,
- [2,20,1],-fatal-warnings,[.section lto_test,"dr0"])
- if test x$gcc_cv_as_section_has_align != xyes; then
- case ",$enable_languages," in
- *,lto,*)
- AC_MSG_WARN([LTO for $target requires binutils >= 2.20.1, but version found appears insufficient; LTO will not work until binutils is upgraded.])
- ;;
- esac
- fi
;;
esac
[AC_DEFINE(HAVE_AS_IX86_FFREEP, 1,
[Define if your assembler supports the ffreep mnemonic.])])
- gcc_GAS_CHECK_FEATURE([.quad directive],
- gcc_cv_as_ix86_quad,,,
- [.quad 0],,
- [AC_DEFINE(HAVE_AS_IX86_QUAD, 1,
- [Define if your assembler supports the .quad directive.])])
-
gcc_GAS_CHECK_FEATURE([sahf mnemonic],
gcc_cv_as_ix86_sahf,,,
- [.code64
- sahf],,
+ [sahf],,
[AC_DEFINE(HAVE_AS_IX86_SAHF, 1,
- [Define if your assembler supports the sahf mnemonic in 64bit mode.])])
+ [Define if your assembler supports the sahf mnemonic.])])
gcc_GAS_CHECK_FEATURE([swap suffix],
gcc_cv_as_ix86_swap,,,
[AC_DEFINE(HAVE_AS_IX86_DIFF_SECT_DELTA, 1,
[Define if your assembler supports the subtraction of symbols in different sections.])])
- # These two are used unconditionally by i386.[ch]; it is to be defined
+ # 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],
gcc_cv_as_ix86_gotoff_in_data, [2,11,0],,
AC_DEFINE_UNQUOTED(HAVE_AS_GOTOFF_IN_DATA,
[`if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`],
[Define true if the assembler supports '.long foo@GOTOFF'.])
-
- gcc_GAS_CHECK_FEATURE([rep and lock prefix],
- gcc_cv_as_ix86_rep_lock_prefix,,,
- [rep movsl
- lock orl $0, (%esp)])
- AC_DEFINE_UNQUOTED(HAVE_AS_IX86_REP_LOCK_PREFIX,
- [`if test $gcc_cv_as_ix86_rep_lock_prefix = yes; then echo 1; else echo 0; fi`],
- [Define true if the assembler supports 'rep <insn>, lock <insn>'.])
-
;;
ia64*-*-*)
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 2> /dev/null \
- | grep gcc_except_table > /dev/null; then
+ 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
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 2> /dev/null \
- | grep gcc_except_table > /dev/null; then
+ elif $gcc_cv_objdump -h conftest | grep gcc_except_table > /dev/null; then
gcc_cv_ld_eh_gc_sections=yes
fi
fi
AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
enable_lto=yes
AC_SUBST(enable_lto)
- # LTO needs to speak the platform's object file format, and has a
- # number of implementations of the required binary file access APIs.
- # ELF is the most common, and default. We only link libelf if ELF
- # is indeed the selected format.
- LTO_BINARY_READER=${lto_binary_reader}
- LTO_USE_LIBELF=-lelf
- if test "x$lto_binary_reader" != "xlto-elf" ; then
- LTO_USE_LIBELF=
- fi
- AC_SUBST(LTO_BINARY_READER)
- AC_SUBST(LTO_USE_LIBELF)
;;
*) ;;
esac
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
- case "${host}" in
- *-*-darwin*)
- export_sym_check="$gcc_cv_nm -g"
- ;;
- *)
- export_sym_check="$gcc_cv_objdump -T"
- ;;
- esac
AC_MSG_CHECKING([for exported symbols])
echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
- if $export_sym_check conftest | grep foobar > /dev/null; then
+ if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
: # No need to use a flag
else
AC_MSG_CHECKING([for -rdynamic])
${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
- if $export_sym_check conftest | grep foobar > /dev/null; then
- plugin_rdynamic=yes
+ if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
pluginlibs="-rdynamic"
else
- plugin_rdynamic=no
enable_plugin=no
fi
- AC_MSG_RESULT([$plugin_rdynamic])
fi
# Check -ldl
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$LDFLAGS"
- case "${host}" in
- *-*-darwin*)
- LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
- ;;
- *)
- LDFLAGS="$LDFLAGS -fPIC -shared"
- ;;
- esac
+ LDFLAGS="$LDFLAGS -fPIC -shared"
AC_MSG_CHECKING([for -fPIC -shared])
AC_TRY_LINK(
[extern int X;],[return X == 0;],
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