# Process this file with autoconf to generate a configuration script.
# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009 Free Software Foundation, Inc.
+# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
#This file is part of GCC.
AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
+AC_ARG_WITH(specs,
+ [AS_HELP_STRING([--with-specs=SPECS],
+ [add SPECS to driver command-line processing])],
+ [CONFIGURE_SPECS=$withval],
+ [CONFIGURE_SPECS=]
+)
+AC_SUBST(CONFIGURE_SPECS)
+
# Build with intermodule optimisations
AC_ARG_ENABLE(intermodule,
[ --enable-intermodule build the compiler in one step],
AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
fi])
+ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld
+PLUGIN_LD=`basename $gcc_cv_ld`
+AC_ARG_WITH(plugin-ld,
+[ --with-plugin-ld=[[ARG]] specify the plugin linker],
+[if test x"$withval" != x; then
+ ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
+ PLUGIN_LD="$withval"
+ fi])
+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
[ .hidden foobar
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
+ 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]*\.\([0-9]*\)'`
+ fi
+fi
+changequote([,])dnl
+
AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
-[if test $in_tree_ld = yes ; then
+[[if test $in_tree_ld = yes ; then
gcc_cv_ld_hidden=no
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 13 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_hidden=yes
fi
else
-changequote(,)dnl
gcc_cv_ld_hidden=yes
- ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
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]*\.\([0-9]*\)'`
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
;;
esac
fi
-changequote([,])dnl
-fi])
+fi]])
libgcc_visibility=no
AC_SUBST(libgcc_visibility)
GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
.uleb128 1280
.sleb128 -1010
L2:],
- [# GAS versions before 2.11 do not support uleb128,
+[[# GAS versions before 2.11 do not support uleb128,
# despite appearing to.
# ??? There exists an elf-specific test that will crash
# the assembler. Perhaps it's better to figure out whether
# arbitrary sections are supported and try the test.
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
if echo "$as_ver" | grep GNU > /dev/null; then
-changequote(,)dnl
as_vers=`echo $as_ver | sed -n \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
as_major=`expr "$as_vers" : '\([0-9]*\)'`
as_minor=`expr "$as_vers" : '[0-9]*\.\([0-9]*\)'`
-changequote([,])dnl
if test $as_major -eq 2 && test $as_minor -lt 11
then :
else gcc_cv_as_leb128=yes
fi
- fi],
+ fi]],
[AC_DEFINE(HAVE_AS_LEB128, 1,
[Define if your assembler supports .sleb128 and .uleb128.])])
sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
gcc_cv_as_cfi_directive=no
else
- gcc_cv_as_cfi_directive=yes
+ case "$target" in
+ i?86-*-solaris2.1[[0-9]]*)
+ # On Solaris/x86, make sure that GCC and gas agree on using
+ # read-only .eh_frame sections for 64-bit.
+ if $gcc_cv_as --64 -o conftest.o conftest.s > /dev/null 2>&1 && \
+ $gcc_cv_objdump -h conftest.o 2>/dev/null | \
+ sed -e /.eh_frame/!d -e N | \
+ grep READONLY > /dev/null; then
+ gcc_cv_as_cfi_directive=yes
+ else
+ gcc_cv_as_cfi_directive=no
+ fi
+ ;;
+ *)
+ gcc_cv_as_cfi_directive=yes
+ ;;
+ esac
fi
else
# no objdump, err on the side of caution
[ .text
.cfi_startproc
.cfi_adjust_cfa_offset 64
- .skip 512, 0
+ .skip 75040, 0
.cfi_adjust_cfa_offset 128
.cfi_endproc],
-[
-changequote(,)dnl
+[[
if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
- | grep 'DW_CFA_advance_loc[12]:[ ][ ]*512[ ]' >/dev/null; then
+ | grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then
gcc_cv_as_cfi_advance_working=yes
fi
-changequote([,])dnl
-])
+]])
else
# no readelf, err on the side of caution
gcc_cv_as_cfi_advance_working=no
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
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 $in_tree_ld_is_elf = yes; then
tls_first_minor=17
;;
i[34567]86-*-*)
- conftest_s='
- .section ".tdata","awT",@progbits
+ case "$target" in
+ 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$enable_tls" = xyes ; then
+ on_solaris=yes
+ else
+ enable_tls=no;
+ fi
+ ;;
+ i[34567]86-*-solaris2.*)
+ on_solaris=yes
+ ;;
+ *)
+ on_solaris=no
+ ;;
+ esac
+ if test x$on_solaris = xyes && test x$gas_flag = xno; then
+ conftest_s='
+ .section .tdata,"awt",@progbits'
+ tls_first_major=0
+ tls_first_minor=0
+changequote([,])dnl
+ AC_DEFINE(TLS_SECTION_ASM_FLAG, 't',
+[Define to the flag used to mark TLS sections if the default (`T') doesn't work.])
+changequote(,)dnl
+ else
+ conftest_s='
+ .section ".tdata","awT",@progbits'
+ tls_first_major=2
+ tls_first_minor=14
+ tls_as_opt="--fatal-warnings"
+ fi
+ conftest_s="$conftest_s
foo: .long 25
.text
movl %gs:0, %eax
- leal foo@TLSGD(,%ebx,1), %eax
- leal foo@TLSLDM(%ebx), %eax
- leal foo@DTPOFF(%eax), %edx
- movl foo@GOTTPOFF(%ebx), %eax
- subl foo@GOTTPOFF(%ebx), %eax
- addl foo@GOTNTPOFF(%ebx), %eax
- movl foo@INDNTPOFF, %eax
- movl $foo@TPOFF, %eax
- subl $foo@TPOFF, %eax
- leal foo@NTPOFF(%ecx), %eax'
- tls_first_major=2
- tls_first_minor=14
- tls_as_opt=--fatal-warnings
- ;;
+ leal foo@tlsgd(,%ebx,1), %eax
+ leal foo@tlsldm(%ebx), %eax
+ leal foo@dtpoff(%eax), %edx
+ movl foo@gottpoff(%ebx), %eax
+ subl foo@gottpoff(%ebx), %eax
+ addl foo@gotntpoff(%ebx), %eax
+ movl foo@indntpoff, %eax
+ movl \$foo@tpoff, %eax
+ subl \$foo@tpoff, %eax
+ leal foo@ntpoff(%ecx), %eax"
+ ;;
x86_64-*-*)
conftest_s='
.section ".tdata","awT",@progbits
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
[Define if your assembler supports -relax option.])])
+ gcc_GAS_CHECK_FEATURE([GOTDATA_OP relocs],
+ gcc_cv_as_sparc_gotdata_op,,
+ [-K PIC],
+[.text
+foo:
+ nop
+bar:
+ sethi %gdop_hix22(foo), %g1
+ xor %g1, %gdop_lox10(foo), %g1
+ ld [[%l7 + %g1]], %g2, %gdop(foo)],
+ [if test x$gcc_cv_ld != x \
+ && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
+ if $gcc_cv_ld -v | grep GNU >/dev/null 2>&1; then
+ if test x$gcc_cv_objdump != x; then
+ if $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
+ | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
+ gcc_cv_as_sparc_gotdata_op=no
+ else
+ gcc_cv_as_sparc_gotdata_op=yes
+ fi
+ fi
+ else
+ gcc_cv_as_sparc_gotdata_op=yes
+ fi
+ fi
+ rm -f conftest],
+ [AC_DEFINE(HAVE_AS_SPARC_GOTDATA_OP, 1,
+ [Define if your assembler and linker support GOTDATA_OP relocs.])])
+
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
gcc_cv_as_sparc_ua_pcrel,,
[-K PIC],
i[34567]86-*-* | x86_64-*-*)
changequote([,])dnl
case $target_os in
+ cygwin*)
+ # Full C++ conformance when using a shared libstdc++-v3 requires some
+ # support from the Cygwin DLL, which in more recent versions exports
+ # wrappers to aid in interposing and redirecting operators new, delete,
+ # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we
+ # are configuring for a version of Cygwin that exports the wrappers.
+ if test x$host = x$target; then
+ AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no])
+ else
+ # Can't check presence of libc functions during cross-compile, so
+ # we just have to assume we're building for an up-to-date target.
+ gcc_ac_cygwin_dll_wrappers=yes
+ fi
+ AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS,
+ [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`],
+ [Define if you want to generate code by default that assumes that the
+ Cygwin DLL exports wrappers to support libstdc++ function replacement.])
+ esac
+ case $target_os in
cygwin* | pe | mingw32*)
# Recent binutils allows the three-operand form of ".comm" on PE. This
# definition is used unconditionally to initialise the default state of
[ bl __tls_get_addr(x@tlsgd)],,
[AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
[Define if your assembler supports arg info for __tls_get_addr.])])
+
+ case $target in
+ *-*-aix*)
+ gcc_GAS_CHECK_FEATURE([.ref support],
+ gcc_cv_as_aix_ref, [2.21.0],,
+ [ .csect stuff[[rw]]
+ stuff:
+ .long 1
+ .extern sym
+ .ref sym
+ ],,
+ [AC_DEFINE(HAVE_AS_REF, 1,
+ [Define if your assembler supports .ref])])
+ ;;
+ esac
;;
mips*-*-*)
[elf,2,19,52],,
[.type foo, @gnu_unique_object],,
# Also check for ld.so support, i.e. glibc 2.11 or higher.
- [if test x$host = x$build -a x$host = x$target &&
- glibcver=`ldd --version 2>/dev/null`; then
- glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"`
- glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"`
+ [[if test x$host = x$build -a x$host = x$target &&
+ glibcver=`ldd --version 2>/dev/null | sed 's/.* //;q'`; then
+ glibcmajor=`expr "$glibcver" : "\([0-9]*\)"`
+ glibcminor=`expr "$glibcver" : "[2-9]*\.\([0-9]*\)"`
glibcnum=`expr $glibcmajor \* 1000 + $glibcminor`
if test "$glibcnum" -ge 2011 ; then
enable_gnu_unique_object=yes
fi
- fi])])
+ fi]])])
if test x$enable_gnu_unique_object = xyes; then
AC_DEFINE(HAVE_GAS_GNU_UNIQUE_OBJECT, 1,
[Define if your assembler supports @gnu_unique_object.])
case "$target" in
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
- if test "x$with_sysroot" = x; then
+ if test "x$with_headers" != x; then
+ glibc_header_dir=$with_headers
+ elif 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"
else
glibc_header_dir=/usr/include
fi
- # glibc 2.4 and later provides __stack_chk_fail and
+ [# 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])' \
+ && $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])' \
+ 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' \
+ elif $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC__[ ]+2' \
$glibc_header_dir/features.h > /dev/null \
- && $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
+ && $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
$glibc_header_dir/features.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
- elif $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
+ elif $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
$glibc_header_dir/features.h > /dev/null && \
test -f $glibc_header_dir/bits/uClibc_config.h && \
- $EGREP '^@<:@ @:>@*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
+ $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
$glibc_header_dir/bits/uClibc_config.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
fi
- fi
+ fi]
;;
*-*-gnu*)
# Avoid complicated tests (see
AC_ARG_WITH(long-double-128,
[ --with-long-double-128 Use 128-bit long double by default.],
gcc_cv_target_ldbl128="$with_long_double_128",
- [gcc_cv_target_ldbl128=no
+ [[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"
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
rm -f Make-hooks
touch Make-hooks
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 \
+ install-common install-man install-info install-pdf install-html dvi \
+ pdf html uninstall info man srcextra srcman srcinfo \
mostlyclean clean distclean maintainer-clean install-plugin"
for t in $target_list
AC_ARG_VAR(GMPLIBS,[How to link GMP])
AC_ARG_VAR(GMPINC,[How to find GMP include files])
-case "${GMPLIBS}" in
- *-lmpc*) AC_DEFINE(HAVE_mpc, 1, [Define if mpc is in use.]) ;;
-esac
-
AC_ARG_VAR(PPLLIBS,[How to link PPL])
AC_ARG_VAR(PPLINC,[How to find PPL include files])
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
- # Check that the host supports -rdynamic and -ldl
- have_rdynamic=no
- have_dl=no
- saved_LDFLAGS="$LDFLAGS"
- saved_LIBS="$LIBS"
- LIBS=
-
- # Check -rdynamic
- LDFLAGS="$LDFLAGS -rdynamic"
- AC_MSG_CHECKING([for -rdynamic])
- AC_TRY_LINK([],[return 0;],
- [AC_MSG_RESULT([yes]); have_rdynamic=yes],
- [AC_MSG_RESULT([no])])
- if test x"$have_rdynamic" = x"yes" ; then
- pluginlibs="-rdynamic"
+
+ 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 $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 $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ pluginlibs="-rdynamic"
+ else
+ enable_plugin=no
+ fi
fi
# Check -ldl
+ saved_LIBS="$LIBS"
AC_SEARCH_LIBS([dlopen], [dl])
if test x"$ac_cv_search_dlopen" = x"-ldl"; then
pluginlibs="$pluginlibs -ldl"
fi
+ LIBS="$saved_LIBS"
# Check that we can build shared objects with -fPIC -shared
+ saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -fPIC -shared"
AC_MSG_CHECKING([for -fPIC -shared])
AC_TRY_LINK(
pluginlibs=
enable_plugin=no
fi
+ LDFLAGS="$saved_LDFLAGS"
# If plugin support had been requested but not available, fail.
if test x"$enable_plugin" = x"no" ; then
-fPIC, -shared, -ldl and -rdynamic.])
fi
fi
-
- LDFLAGS="$saved_LDFLAGS"
- LIBS="$saved_LIBS"
fi
AC_SUBST(pluginlibs)