# Process this file with autoconf to generate a configuration script.
# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
#This file is part of GCC.
AC_PROG_CPP
AC_C_INLINE
+AC_SYS_LARGEFILE
+
# sizeof(char) is 1 by definition.
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(short)
ENABLE_BUILD_WITH_CXX=$enableval,
ENABLE_BUILD_WITH_CXX=no)
AC_SUBST(ENABLE_BUILD_WITH_CXX)
+if test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
+ AC_DEFINE(ENABLE_BUILD_WITH_CXX, 1,
+ [Define if building with C++.])
+fi
# With stabs
AC_ARG_WITH(stabs,
gcc_AC_C_CHAR_BIT
AC_C_BIGENDIAN
+# ----------------------
+# Checks for C++ headers
+# ----------------------
+
+dnl Autoconf will give an error in the configure script if there is no
+dnl C++ preprocessor. Hack to prevent that.
+m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl
+AC_PROG_CXXCPP
+m4_popdef([AC_MSG_ERROR])[]dnl
+
+AC_LANG_PUSH(C++)
+
+AC_CHECK_HEADERS(unordered_map)
+AC_CHECK_HEADERS(tr1/unordered_map)
+AC_CHECK_HEADERS(ext/hash_map)
+
+AC_LANG_POP(C++)
+
# --------
# UNSORTED
# --------
putchar_unlocked putc_unlocked)
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
sysconf strsignal getrusage nl_langinfo \
- gettimeofday mbstowcs wcswidth mmap mincore setlocale \
+ gettimeofday mbstowcs wcswidth mmap 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>
# Convert extra_options into a form suitable for Makefile use.
extra_opt_files=
+all_opt_files=
for f in $extra_options; do
extra_opt_files="$extra_opt_files \$(srcdir)/config/$f"
+ all_opt_files="$all_opt_files $srcdir/config/$f"
done
AC_SUBST(extra_opt_files)
| powerpc*-*-*,powerpc64*-*-*)
CROSS="$CROSS -DNATIVE_CROSS" ;;
esac
+
+ case $target in
+ *-*-mingw*)
+ if test "x$with_headers" = x; then
+ with_headers=yes
+ fi
+ ;;
+ *)
+ ;;
+ esac
elif test "x$TARGET_SYSTEM_ROOT" != x; then
SYSTEM_HEADER_DIR=$build_system_header_dir
fi
;;
esac
+AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}",
+[Define to the name of the LTO plugin DSO that must be
+ passed to the linker's -plugin=LIB option.])
+
# ---------------------------
# Assembler & linker features
# ---------------------------
elif test -x as$build_exeext; then
# Build using assembler in the current directory.
gcc_cv_as=./as$build_exeext
-elif test -x $AS_FOR_TARGET; then
+elif ( set dummy $AS_FOR_TARGET; test -x $[2] ); then
gcc_cv_as="$AS_FOR_TARGET"
else
AC_PATH_PROG(gcc_cv_as, $AS_FOR_TARGET)
elif test -x collect-ld$build_exeext; then
# Build using linker in the current directory.
gcc_cv_ld=./collect-ld$build_exeext
-elif test -x $LD_FOR_TARGET; then
+elif ( set dummy $LD_FOR_TARGET; test -x $[2] ); then
gcc_cv_ld="$LD_FOR_TARGET"
else
AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
gcc_cv_nm=../binutils/nm-new$build_exeext
elif test -x nm$build_exeext; then
gcc_cv_nm=./nm$build_exeext
-elif test -x $NM_FOR_TARGET; then
+elif ( set dummy $NM_FOR_TARGET; test -x $[2] ); then
gcc_cv_nm="$NM_FOR_TARGET"
else
AC_PATH_PROG(gcc_cv_nm, $NM_FOR_TARGET)
gcc_cv_objdump=../binutils/objdump$build_exeext
elif test -x objdump$build_exeext; then
gcc_cv_objdump=./objdump$build_exeext
-elif test -x $OBJDUMP_FOR_TARGET; then
+elif ( set dummy $OBJDUMP_FOR_TARGET; test -x $[2] ); then
gcc_cv_objdump="$OBJDUMP_FOR_TARGET"
else
AC_PATH_PROG(gcc_cv_objdump, $OBJDUMP_FOR_TARGET)
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
+ *-*-solaris2.8*)
+ # .hidden support was backported to Solaris 8, starting with ld
+ # version 1.276.
+ if test "$ld_vers_minor" -ge 276; then
+ gcc_cv_ld_hidden=yes
+ else
+ gcc_cv_ld_hidden=no
+ fi
+ ;;
*-*-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.
[set_have_as_tls=yes])
fi
case "$target" in
+ *-*-irix6*)
+ # IRIX 6.5 rld and libc.so lack TLS support, so even if gas and gld
+ # with TLS support are in use, native TLS cannot work.
+ set_have_as_tls=no
+ ;;
+ *-*-osf*)
+ # Tru64 UNIX loader and libc.so lack TLS support, so even if gas and
+ # gld with TLS support are in use, native TLS cannot work.
+ set_have_as_tls=no
+ ;;
# TLS was introduced in the Solaris 9 FCS release and backported to
# Solaris 8 patches. Support for GNU-style TLS on x86 was only
# introduced in Solaris 9 4/04, replacing the earlier Sun style that Sun
min_tls_ld_vers_minor=343
;;
esac
- if test "$ls_vers_major" -gt 1 || \
+ if test "$ld_vers_major" -gt 1 || \
test "$ld_vers_minor" -ge "$min_tls_ld_vers_minor"; then
ld_tls_support=yes
else
AC_MSG_RESULT($gcc_cv_ld_demangle)
fi
+AC_MSG_CHECKING(linker plugin support)
+gcc_cv_lto_plugin=no
+if test -f ../lto-plugin/Makefile ; then
+ if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET=" = x"$gcc_cv_ld"; then
+ if test x"$ld_is_gold" = xyes; then
+ gcc_cv_lto_plugin=yes
+ elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then \
+ gcc_cv_lto_plugin=yes
+ fi
+ # Check if the linker supports --plugin-opt option
+ elif $ORIGINAL_PLUGIN_LD_FOR_TARGET --help 2>/dev/null | grep plugin-opt > /dev/null; then
+ gcc_cv_lto_plugin=yes
+ fi
+fi
+if test x"$gcc_cv_lto_plugin" = xyes; then
+ AC_DEFINE(HAVE_LTO_PLUGIN, 1,
+[Define if your linker supports plugin.])
+fi
+AC_MSG_RESULT($gcc_cv_lto_plugin)
+
case "$target" in
# All TARGET_ABI_OSF targets.
alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
[AC_DEFINE(HAVE_AS_DTPRELWORD, 1,
[Define if your assembler supports .dtprelword.])])
+ gcc_GAS_CHECK_FEATURE([DSPR1 mult with four accumulators support],
+ gcc_cv_as_mips_dspr1_mult,,,
+[ .set mips32r2
+ .set nodspr2
+ .set dsp
+ madd $ac3,$4,$5
+ maddu $ac3,$4,$5
+ msub $ac3,$4,$5
+ msubu $ac3,$4,$5
+ mult $ac3,$4,$5
+ multu $ac3,$4,$5],,
+ [AC_DEFINE(HAVE_AS_DSPR1_MULT, 1,
+ [Define if your assembler supports DSPR1 mult.])])
+
AC_MSG_CHECKING(assembler and linker for explicit JALR relocation)
gcc_cv_as_ld_jalr_reloc=no
if test $gcc_cv_as_mips_explicit_relocs = yes; then
# add some instruction here to (also) show we expect this might work.
# ??? Once 2.11 is released, probably need to add first known working
# version to the per-target configury.
-case "$target" in
- i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
- | x86_64*-*-* | hppa*-*-* | arm*-*-* \
- | xstormy16*-*-* | cris-*-* | crisv32-*-* | xtensa*-*-* | bfin-*-* | score*-*-* \
- | spu-*-* | fido*-*-* | m32c-*-*)
+case "$cpu_type" in
+ alpha | arm | avr | bfin | cris | i386 | m32c | m68k | microblaze | mips \
+ | pa | rs6000 | score | sparc | spu | xstormy16 | xtensa)
insn="nop"
;;
- ia64*-*-* | s390*-*-*)
+ ia64 | s390)
insn="nop 0"
;;
- mmix-*-*)
+ mmix)
insn="swym 0"
;;
esac
[Define if your assembler supports .lcomm with an alignment field.])])
AC_ARG_ENABLE(gnu-unique-object,
- [ --enable-gnu-unique-object enable the use of the @gnu_unique_object ELF extension on
- glibc systems],
+ [AS_HELP_STRING([--enable-gnu-unique-object],
+ [enable the use of the @gnu_unique_object ELF extension on glibc systems])],
[case $enable_gnu_unique_object in
yes | no) ;;
*) AC_MSG_ERROR(['$enable_gnu_unique_object' is an invalid value for --enable-gnu-unique-object.
[.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 &&
+ ldd --version 2>/dev/null &&
glibcver=`ldd --version 2>/dev/null | sed 's/.* //;q'`; then
glibcmajor=`expr "$glibcver" : "\([0-9]*\)"`
glibcminor=`expr "$glibcver" : "[2-9]*\.\([0-9]*\)"`
gcc_cv_ld_eh_frame_hdr=yes
fi
elif test x$gcc_cv_ld != x; then
- # Check if linker supports --eh-frame-hdr option
- if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
- gcc_cv_ld_eh_frame_hdr=yes
- fi
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Check if linker supports --eh-frame-hdr option
+ if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
+ gcc_cv_ld_eh_frame_hdr=yes
+ fi
+ else
+ case "$target" in
+ *-*-solaris2*)
+ # Sun ld has various bugs in .eh_frame_hdr support before version 1.2249.
+ if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2249; then
+ gcc_cv_ld_eh_frame_hdr=yes
+ fi
+ ;;
+ esac
+ fi
fi
GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
-[Define if your linker supports --eh-frame-hdr option.])
+[Define if your linker supports .eh_frame_hdr.])
fi
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
[Define to PREFIX/include if cpp should also search that directory.])
fi
+if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
+ if test "x$with_headers" != x; then
+ target_header_dir=$with_headers
+ elif test "x$with_sysroot" = x; then
+ target_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
+ elif test "x$with_build_sysroot" != "x"; then
+ target_header_dir="${with_build_sysroot}/usr/include"
+ elif test "x$with_sysroot" = xyes; then
+ target_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
+ else
+ target_header_dir="${with_sysroot}/usr/include"
+ fi
+else
+ target_header_dir=/usr/include
+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 "$target" in
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
- if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != 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="${with_build_sysroot}/usr/include"
- elif test "x$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 \
+ if test -f $target_header_dir/features.h \
&& $EGREP '^[ ]*#[ ]*define[ ]+__GNU_LIBRARY__[ ]+([1-9][0-9]|[6-9])' \
- $glibc_header_dir/features.h > /dev/null; then
+ $target_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
+ $target_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 \
+ $target_header_dir/features.h > /dev/null \
&& $EGREP '^[ ]*#[ ]*define[ ]+__GLIBC_MINOR__[ ]+([1-9][0-9]|[4-9])' \
- $glibc_header_dir/features.h > /dev/null; then
+ $target_header_dir/features.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
elif $EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC__[ ]+1' \
- $glibc_header_dir/features.h > /dev/null && \
- test -f $glibc_header_dir/bits/uClibc_config.h && \
+ $target_header_dir/features.h > /dev/null && \
+ test -f $target_header_dir/bits/uClibc_config.h && \
$EGREP '^[ ]*#[ ]*define[ ]+__UCLIBC_HAS_SSP__[ ]+1' \
- $glibc_header_dir/bits/uClibc_config.h > /dev/null; then
+ $target_header_dir/bits/uClibc_config.h > /dev/null; then
gcc_cv_libc_provides_ssp=yes
fi
fi]
[ --with-long-double-128 Use 128-bit long double by default.],
gcc_cv_target_ldbl128="$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
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
- $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \
+ $target_header_dir/bits/wordsize.h > /dev/null 2>&1 \
&& gcc_cv_target_ldbl128=yes
]])
;;
[Define if TFmode long double should be the default])
fi
+AC_MSG_CHECKING(dl_iterate_phdr in target C library)
+gcc_cv_target_dl_iterate_phdr=unknown
+case "$target" in
+ *-*-solaris2*)
+ # <link.h> needs both a dl_iterate_phdr declaration and support for
+ # compilation with largefile support.
+ if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \
+ && grep 'large file capable' $target_header_dir/link.h > /dev/null 2>&1; then
+ gcc_cv_target_dl_iterate_phdr=yes
+ else
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
+esac
+GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+ AC_DEFINE(TARGET_DL_ITERATE_PHDR, 1,
+[Define if your target C library provides the `dl_iterate_phdr' function.])
+fi
+AC_MSG_RESULT($gcc_cv_target_dl_iterate_phdr)
+
# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
[ --with-gc={page,zone} choose the garbage collection mechanism to use
# `language' must be a single word so is spelled singularly.
all_languages=
all_compilers=
-all_outputs='Makefile gccbug'
+all_outputs='Makefile'
# List of language makefile fragments.
all_lang_makefrags=
# Additional files for gengtype
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
if test -f $srcdir/$gcc_subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
+ all_opt_files="$all_opt_files $srcdir/$gcc_subdir/lang.opt"
fi
if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
enable_lto=yes
AC_SUBST(enable_lto)
- # LTO needs to speak the platform's object file format, and has a
- # number of implementations of the required binary file access APIs.
- # ELF is the most common, and default. We only link libelf if ELF
- # is indeed the selected format.
- LTO_BINARY_READER=${lto_binary_reader}
- LTO_USE_LIBELF=-lelf
- if test "x$lto_binary_reader" != "xlto-elf" ; then
- LTO_USE_LIBELF=
- fi
- AC_SUBST(LTO_BINARY_READER)
- AC_SUBST(LTO_USE_LIBELF)
;;
*) ;;
esac
done
# --------
+# Option include files
+# --------
+
+${AWK} -f $srcdir/opt-include.awk $all_opt_files > option-includes.mk
+option_includes="option-includes.mk"
+AC_SUBST_FILE(option_includes)
+
+# --------
# UNSORTED
# --------
AC_DEFINE(HAVE_cloog, 1, [Define if cloog is in use.])
fi
-AC_ARG_VAR(LIBELFLIBS,[How to link libelf])
-AC_ARG_VAR(LIBELFINC,[How to find libelf include files])
-if test "x${LIBELFLIBS}" != "x" ; then
- AC_DEFINE(HAVE_libelf, 1, [Define if libelf is in use.])
-fi
-
# Check for plugin support
AC_ARG_ENABLE(plugin,
[ --enable-plugin enable plugin support],
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$LDFLAGS"
+ saved_CFLAGS="$CFLAGS"
case "${host}" in
*-*-darwin*)
- LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup"
+ CFLAGS=`echo $CFLAGS | sed s/-mdynamic-no-pic//g`
+ CFLAGS="$CFLAGS -fPIC"
+ LDFLAGS="$LDFLAGS -shared -undefined dynamic_lookup"
;;
*)
+ CFLAGS="$CFLAGS -fPIC"
LDFLAGS="$LDFLAGS -fPIC -shared"
;;
esac
enable_plugin=no
fi
LDFLAGS="$saved_LDFLAGS"
+ CFLAGS="$saved_CFLAGS"
# If plugin support had been requested but not available, fail.
if test x"$enable_plugin" = x"no" ; then
AC_DEFINE(ENABLE_PLUGIN, 1, [Define to enable plugin support.])
fi
+
+AC_ARG_ENABLE(libquadmath-support,
+[AS_HELP_STRING([--disable-libquadmath-support],
+ [disable libquadmath support for Fortran])],
+ENABLE_LIBQUADMATH_SUPPORT=$enableval,
+ENABLE_LIBQUADMATH_SUPPORT=yes)
+if test "${ENABLE_LIBQUADMATH_SUPPORT}" != "no" ; then
+ AC_DEFINE(ENABLE_LIBQUADMATH_SUPPORT, 1,
+ [Define to 1 to enable libquadmath support])
+fi
+
+
# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)
],
[subdirs='$subdirs'])
AC_OUTPUT
+
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