# 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.
# Specify the local prefix
local_prefix=
AC_ARG_WITH(local-prefix,
-[ --with-local-prefix=DIR specifies directory to put local include],
+[AS_HELP_STRING([--with-local-prefix=DIR],
+ [specifies directory to put local include])],
[case "${withval}" in
yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
no) ;;
gcc_gxx_include_dir=
# Specify the g++ header file directory
AC_ARG_WITH(gxx-include-dir,
-[ --with-gxx-include-dir=DIR
- specifies directory to put g++ header files],
+[AS_HELP_STRING([--with-gxx-include-dir=DIR],
+ [specifies directory to put g++ header files])],
[case "${withval}" in
yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
no) ;;
fi
AC_ARG_WITH(cpp_install_dir,
-[ --with-cpp-install-dir=DIR
- install the user visible C preprocessor in DIR
- (relative to PREFIX) as well as PREFIX/bin],
+[AC_HELP_STRING([--with-cpp-install-dir=DIR],
+ [install the user visible C preprocessor in DIR
+ (relative to PREFIX) as well as PREFIX/bin])],
[if test x$withval = xyes; then
AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
elif test x$withval != xno; then
AC_MSG_CHECKING([whether to place generated files in the source directory])
dnl generated-files-in-srcdir is disabled by default
AC_ARG_ENABLE(generated-files-in-srcdir,
-[ --enable-generated-files-in-srcdir
- put copies of generated files in source dir
- intended for creating source tarballs for users
- without texinfo bison or flex.],
+ [AS_HELP_STRING([--enable-generated-files-in-srcdir],
+ [put copies of generated files in source dir
+ intended for creating source tarballs for users
+ without texinfo bison or flex])],
generated_files_in_srcdir=$enableval,
generated_files_in_srcdir=no)
# With GNU ld
AC_ARG_WITH(gnu-ld,
-[ --with-gnu-ld arrange to work with GNU ld.],
+[AS_HELP_STRING([--with-gnu-ld], [arrange to work with GNU ld])],
gnu_ld_flag="$with_gnu_ld",
gnu_ld_flag=no)
# With pre-defined ld
AC_ARG_WITH(ld,
-[ --with-ld arrange to use the specified ld (full pathname)],
+[AS_HELP_STRING([--with-ld], [arrange to use the specified ld (full pathname)])],
DEFAULT_LINKER="$with_ld")
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test ! -x "$DEFAULT_LINKER"; then
# With demangler in GNU ld
AC_ARG_WITH(demangler-in-ld,
-[ --with-demangler-in-ld try to use demangler in GNU ld.],
+[AS_HELP_STRING([--with-demangler-in-ld], [try to use demangler in GNU ld])],
demangler_in_ld="$with_demangler_in_ld",
demangler_in_ld=no)
# With GNU as
AC_ARG_WITH(gnu-as,
-[ --with-gnu-as arrange to work with GNU as],
+[AS_HELP_STRING([--with-gnu-as], [arrange to work with GNU as])],
gas_flag="$with_gnu_as",
gas_flag=no)
AC_ARG_WITH(as,
-[ --with-as arrange to use the specified as (full pathname)],
+[AS_HELP_STRING([--with-as], [arrange to use the specified as (full pathname)])],
DEFAULT_ASSEMBLER="$with_as")
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
if test ! -x "$DEFAULT_ASSEMBLER"; then
AC_PROG_CPP
AC_C_INLINE
+AC_SYS_LARGEFILE
+
# sizeof(char) is 1 by definition.
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(short)
fi
AC_ARG_ENABLE(checking,
-[ --enable-checking[=LIST]
- enable expensive run-time checks. With LIST,
- enable only specific categories of checks.
- Categories are: yes,no,all,none,release.
- Flags are: assert,df,fold,gc,gcac,gimple,misc,
- rtlflag,rtl,runtime,tree,valgrind,types.],
+[AS_HELP_STRING([[--enable-checking[=LIST]]],
+ [enable expensive run-time checks. With LIST,
+ enable only specific categories of checks.
+ Categories are: yes,no,all,none,release.
+ Flags are: assert,df,fold,gc,gcac,gimple,misc,
+ rtlflag,rtl,runtime,tree,valgrind,types])],
[ac_checking_flags="${enableval}"],[
# Determine the default checks.
if test x$is_release = x ; then
# Enable code coverage collection
AC_ARG_ENABLE(coverage,
-[ --enable-coverage[=LEVEL]
- enable compiler's code coverage collection.
- Use to measure compiler performance and locate
- unused parts of the compiler. With LEVEL, specify
- optimization. Values are opt, noopt,
- default is noopt],
+[AS_HELP_STRING([[--enable-coverage[=LEVEL]]],
+ [enable compiler's code coverage collection.
+ Use to measure compiler performance and locate
+ unused parts of the compiler. With LEVEL, specify
+ optimization. Values are opt, noopt,
+ default is noopt])],
[case "${enableval}" in
yes|noopt)
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
AC_SUBST(coverage_flags)
AC_ARG_ENABLE(gather-detailed-mem-stats,
-[ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
+[AS_HELP_STRING([--enable-gather-detailed-mem-stats],
+ [enable detailed memory allocation stats gathering])], [],
[enable_gather_detailed_mem_stats=no])
if test x$enable_gather_detailed_mem_stats = xyes ; then
AC_DEFINE(GATHER_STATISTICS, 1,
# See if we are building gcc with C++.
AC_ARG_ENABLE(build-with-cxx,
-[ --enable-build-with-cxx build with C++ compiler instead of C compiler],
+[AS_HELP_STRING([--enable-build-with-cxx],
+ [build with C++ compiler instead of C compiler])],
ENABLE_BUILD_WITH_CXX=$enableval,
ENABLE_BUILD_WITH_CXX=no)
AC_SUBST(ENABLE_BUILD_WITH_CXX)
+if test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
+ AC_DEFINE(ENABLE_BUILD_WITH_CXX, 1,
+ [Define if building with C++.])
+fi
# With stabs
AC_ARG_WITH(stabs,
-[ --with-stabs arrange to use stabs instead of host debug format],
+[AS_HELP_STRING([--with-stabs],
+ [arrange to use stabs instead of host debug format])],
stabs="$with_stabs",
stabs=no)
# Determine whether or not multilibs are enabled.
AC_ARG_ENABLE(multilib,
-[ --enable-multilib enable library support for multiple ABIs],
+[AS_HELP_STRING([--enable-multilib],
+ [enable library support for multiple ABIs])],
[], [enable_multilib=yes])
AC_SUBST(enable_multilib)
# Enable __cxa_atexit for C++.
AC_ARG_ENABLE(__cxa_atexit,
-[ --enable-__cxa_atexit enable __cxa_atexit for C++],
+[AS_HELP_STRING([--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 $target in
- powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux*)
- enable_decimal_float=yes
- ;;
- *)
- AC_MSG_WARN(decimal float is not supported for this target, ignored)
- enable_decimal_float=no
- ;;
- esac
-])
+GCC_AC_ENABLE_DECIMAL_FLOAT([$target])
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 $target in
- i?86*-*-linux* | x86_64*-*-linux*)
- enable_decimal_float=bid
- ;;
- *)
- enable_decimal_float=dpd
- ;;
- esac
- ;;
- xno)
- # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
- # dependency on libdecnumber.
- enable_decimal_float=dpd
- ;;
-esac
-AC_SUBST(enable_decimal_float)
+# Use default_decimal_float for dependency.
+enable_decimal_float=$default_decimal_float
bid=`if test $enable_decimal_float = bid; then echo 1; else echo 0; fi`
AC_DEFINE_UNQUOTED(ENABLE_DECIMAL_BID_FORMAT, $bid,
# Enable C extension for fixed-point arithmetic.
AC_ARG_ENABLE(fixed-point,
-[ --enable-fixed-point enable fixed-point arithmetic extension to C],
-[
-],
+[AS_HELP_STRING([--enable-fixed-point],
+ [enable fixed-point arithmetic extension to C])],
+[],
[
case $target in
mips*-*-*)
case $host in
mips*-sgi-irix*)
- AC_MSG_WARN(fixed-point is not supported on IRIX, ignored)
+ AC_MSG_WARN([fixed-point is not supported on IRIX, ignored])
enable_fixed_point=no
;;
*)
esac
;;
*)
- AC_MSG_WARN(fixed-point is not supported for this target, ignored)
+ AC_MSG_WARN([fixed-point is not supported for this target, ignored])
enable_fixed_point=no
;;
esac
# Pass with no value to take the default
# Pass with a value to specify a thread package
AC_ARG_ENABLE(threads,
-[ --enable-threads enable thread usage for target GCC
- --enable-threads=LIB use LIB thread package for target GCC],,
+[AS_HELP_STRING([[--enable-threads[=LIB]]],
+ [enable thread usage for target GCC,
+ using LIB thread package])],,
[enable_threads=''])
AC_ARG_ENABLE(tls,
-[ --enable-tls enable or disable generation of tls code
- overriding the assembler check for tls support],
+[AS_HELP_STRING([--enable-tls],
+ [enable or disable generation of tls code
+ overriding the assembler check for tls support])],
[
case $enable_tls in
yes | no) ;;
], [enable_tls=''])
AC_ARG_ENABLE(objc-gc,
-[ --enable-objc-gc enable the use of Boehm's garbage collector with
- the GNU Objective-C runtime],
+[AS_HELP_STRING([--enable-objc-gc],
+ [enable the use of Boehm's garbage collector with
+ the GNU Objective-C runtime])],
if test x$enable_objc_gc = xno; then
objc_boehm_gc=''
else
objc_boehm_gc='')
AC_ARG_WITH(dwarf2,
-[ --with-dwarf2 force the default debug format to be DWARF 2],
+[AS_HELP_STRING([--with-dwarf2], [force the default debug format to be DWARF 2])],
dwarf2="$with_dwarf2",
dwarf2=no)
AC_ARG_ENABLE(shared,
-[ --disable-shared don't provide a shared libgcc],
+[AS_HELP_STRING([--disable-shared], [don't provide a shared libgcc])],
[
case $enable_shared in
yes | no) ;;
AC_SUBST(enable_shared)
AC_ARG_WITH(build-sysroot,
- [ --with-build-sysroot=sysroot
- use sysroot as the system root during the build])
+ [AS_HELP_STRING([--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.],
+[AS_HELP_STRING([[--with-sysroot[=DIR]]],
+ [search for usr/lib, usr/include, et al, within DIR])],
[
case ${with_sysroot} in
yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
)
AC_SUBST(CONFIGURE_SPECS)
-# Build with intermodule optimisations
-AC_ARG_ENABLE(intermodule,
-[ --enable-intermodule build the compiler in one step],
-[case ${enable_intermodule} in
- yes) onestep="-onestep";;
- *) onestep="";;
-esac],
-[onestep=""])
-AC_SUBST(onestep)
-
ACX_PKGVERSION([GCC])
ACX_BUGURL([http://gcc.gnu.org/bugs.html])
# Sanity check enable_languages in case someone does not run the toplevel
# configure # script.
AC_ARG_ENABLE(languages,
-[ --enable-languages=LIST specify which front-ends to build],
+[AS_HELP_STRING([--enable-languages=LIST], [specify which front-ends to build])],
[case ,${enable_languages}, in
,,|,yes,)
# go safe -- we cannot be much sure without the toplevel
[enable_languages=c])
AC_ARG_WITH(multilib-list,
-[ --with-multilib-list Select multilibs (SH only)],
+[AS_HELP_STRING([--with-multilib-list], [select multilibs (SH only)])],
:,
with_multilib_list=default)
# NM
if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
&& test -d ../binutils ; then
- NM='$(objdir)/../binutils/nm-new'
+ NM='${objdir}/../binutils/nm-new'
else
AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
fi
# AR
if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
&& test -d ../binutils ; then
- AR='$(objdir)/../binutils/ar'
+ AR='${objdir}/../binutils/ar'
else
AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
fi
gcc_AC_C_CHAR_BIT
AC_C_BIGENDIAN
+# ----------------------
+# Checks for C++ headers
+# ----------------------
+
+dnl Autoconf will give an error in the configure script if there is no
+dnl C++ preprocessor. Hack to prevent that.
+m4_pushdef([AC_MSG_ERROR], m4_defn([AC_MSG_WARN]))[]dnl
+AC_PROG_CXXCPP
+m4_popdef([AC_MSG_ERROR])[]dnl
+
+AC_LANG_PUSH(C++)
+
+AC_CHECK_HEADERS(unordered_map)
+AC_CHECK_HEADERS(tr1/unordered_map)
+AC_CHECK_HEADERS(ext/hash_map)
+
+AC_LANG_POP(C++)
+
# --------
# UNSORTED
# --------
putchar_unlocked putc_unlocked)
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoll atoq \
sysconf strsignal getrusage nl_langinfo \
- gettimeofday mbstowcs wcswidth mmap mincore setlocale \
+ gettimeofday mbstowcs wcswidth mmap setlocale \
gcc_UNLOCKED_FUNCS)
-save_CPPFLAGS="$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>
# With Setjmp/Longjmp based exception handling.
AC_ARG_ENABLE(sjlj-exceptions,
-[ --enable-sjlj-exceptions
- arrange to use setjmp/longjmp exception handling],
+[AS_HELP_STRING([--enable-sjlj-exceptions],
+ [arrange to use setjmp/longjmp exception handling])],
[case $target in
*-*-hpux10*)
if test $enableval != yes; then
# default
target_thread_file='single'
;;
- aix | dce | gnat | irix | posix | posix95 | rtems | \
- single | solaris | vxworks | win32 | mipssde)
+ aix | dce | lynx | mipssde | nks | posix | posix95 | rtems | \
+ single | tpf | vxworks | win32)
target_thread_file=${enable_threads}
;;
*)
# 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)
esac
AC_ARG_ENABLE(secureplt,
-[ --enable-secureplt enable -msecure-plt by default for PowerPC],
+[AS_HELP_STRING([--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]),
+ [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], [],
+[AS_HELP_STRING([--enable-cld], [enable -mcld by default for 32bit x86])], [],
[enable_cld=no])
+AC_ARG_ENABLE(frame-pointer,
+[AS_HELP_STRING([--enable-frame-pointer],
+ [enable -fno-omit-frame-pointer by default for 32bit x86])], [],
+[
+case $target_os in
+linux* | darwin[[8912]]*)
+ # Enable -fomit-frame-pointer by default for Linux and Darwin with
+ # DWARF2.
+ enable_frame_pointer=no
+ ;;
+*)
+ enable_frame_pointer=yes
+ ;;
+esac
+])
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
-[ --disable-win32-registry
- disable lookup of installation paths in the
- Registry on Windows hosts
- --enable-win32-registry enable registry lookup (default)
- --enable-win32-registry=KEY
- use KEY instead of GCC version as the last portion
- of the registry key],,)
+[AS_HELP_STRING([--disable-win32-registry],
+ [disable lookup of installation paths in the
+ Registry on Windows hosts])
+AS_HELP_STRING([--enable-win32-registry], [enable registry lookup (default)])
+AS_HELP_STRING([--enable-win32-registry=KEY],
+ [use KEY instead of GCC version as the last portion
+ of the registry key])],,)
case $host_os in
win32 | pe | cygwin* | mingw32* | uwin*)
out_object_file=`basename $out_file .c`.o
tm_file_list="options.h"
-tm_include_list="options.h"
+tm_include_list="options.h insn-constants.h"
for f in $tm_file; do
case $f in
./* )
esac
done
+libgcc_tm_file_list=
+libgcc_tm_include_list=
+for f in $libgcc_tm_file; do
+ libgcc_tm_file_list="${libgcc_tm_file_list} \$(srcdir)/../libgcc/config/$f"
+ libgcc_tm_include_list="${libgcc_tm_include_list} ../libgcc/config/$f"
+done
+
tm_p_file_list=
tm_p_include_list=
for f in $tm_p_file; do
| powerpc*-*-*,powerpc64*-*-*)
CROSS="$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, $LD_FOR_TARGET)
ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld
PLUGIN_LD=`basename $gcc_cv_ld`
AC_ARG_WITH(plugin-ld,
-[ --with-plugin-ld=[[ARG]] specify the plugin linker],
+[AS_HELP_STRING([[--with-plugin-ld=[ARG]]], [specify the plugin linker])],
[if test x"$withval" != x; then
ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
PLUGIN_LD="$withval"
esac
AC_MSG_CHECKING(what linker to use)
-if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext; then
+if test "$gcc_cv_ld" = ../ld/ld-new$build_exeext \
+ || test "$gcc_cv_ld" = ../gold/ld-new$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.
|| grep 'EMUL = .*linux' ../ld/Makefile \
|| grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
in_tree_ld_is_elf=yes
+ elif test "$ld_is_gold" = yes; then
+ in_tree_ld_is_elf=yes
fi
for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
do
gcc_cv_nm=../binutils/nm-new$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)
;;
esac])
+# gnu_indirect_function type is an extension proposed at
+# http://groups.google/com/group/generic-abi/files. It allows dynamic runtime
+# selection of function implementation
+AC_ARG_ENABLE(gnu-indirect-function,
+ [AS_HELP_STRING([--enable-gnu-indirect-function],
+ [enable the use of the @gnu_indirect_function to glibc systems])],
+ [case $enable_gnu_indirect_function in
+ yes | no) ;;
+ *) AC_MSG_ERROR(['$enable_gnu_indirect_function' is an invalid value for --enable-gnu-indirect-function.
+Valid choices are 'yes' and 'no'.]) ;;
+ esac],
+ [enable_gnu_indirect_function="$default_gnu_indirect_function"])
+if test x$enable_gnu_indirect_function = xyes; then
+ AC_DEFINE(HAVE_GNU_INDIRECT_FUNCTION, 1,
+ [Define if your system supports gnu indirect functions.])
+fi
+
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,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ if test x"$ld_is_gold" = xyes; then
+ # GNU gold --version looks like this:
+ #
+ # GNU gold (GNU Binutils 2.21.51.20110225) 1.11
+ #
+ # We extract the binutils version which is more familiar and specific
+ # than the gold version.
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^[^)]*[ ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
+ else
+ # GNU ld --version looks like this:
+ #
+ # GNU ld (GNU Binutils) 2.21.51.20110225
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\1,p'`
+ fi
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]*\.\([0-9]*\)'`
fi
else
gcc_cv_ld_hidden=yes
- if echo "$ld_ver" | grep GNU > /dev/null; then
+ if test x"$ld_is_gold" = xyes; then
+ :
+ elif echo "$ld_ver" | grep GNU > /dev/null; then
if test 0"$ld_date" -lt 20020404; then
if test -n "$ld_date"; then
# If there was date string, but was earlier than 2002-04-04, fail
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
+ *-*-solaris2.8*)
+ # .hidden support was backported to Solaris 8, starting with ld
+ # version 1.276.
+ if test "$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.
gcc_cv_as_cfi_directive=yes
;;
esac])
-if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_readelf != x; then
+if test $gcc_cv_as_cfi_directive = yes && test x$gcc_cv_objdump != x; then
gcc_GAS_CHECK_FEATURE([working cfi advance], gcc_cv_as_cfi_advance_working,
,,
[ .text
.cfi_adjust_cfa_offset 128
.cfi_endproc],
[[
-if $gcc_cv_readelf -wf conftest.o 2>/dev/null \
+if $gcc_cv_objdump -Wf conftest.o 2>/dev/null \
| grep 'DW_CFA_advance_loc[24]:[ ][ ]*75040[ ]' >/dev/null; then
gcc_cv_as_cfi_advance_working=yes
fi
]])
else
- # no readelf, err on the side of caution
+ # no objdump, err on the side of caution
gcc_cv_as_cfi_advance_working=no
fi
+GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_DIRECTIVE)
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
[`if test $gcc_cv_as_cfi_directive = yes \
&& test $gcc_cv_as_cfi_advance_working = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler supports CFI directives.])
+GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_PERSONALITY_DIRECTIVE)
gcc_GAS_CHECK_FEATURE([cfi personality directive],
gcc_cv_as_cfi_personality_directive, ,,
[ .text
[ .text
.cfi_sections .debug_frame, .eh_frame
.cfi_startproc
- .cfi_endproc])
+ .cfi_endproc],
+[case $target_os in
+ win32 | pe | cygwin* | mingw32* | uwin*)
+ # Need to check that we generated the correct relocation for the
+ # .debug_frame section. This was fixed for binutils 2.21.
+ gcc_cv_as_cfi_sections_directive=no
+ if test "x$gcc_cv_objdump" != x; then
+ if $gcc_cv_objdump -j .debug_frame -r conftest.o 2>/dev/null | \
+ grep secrel > /dev/null; then
+ gcc_cv_as_cfi_sections_directive=yes
+ fi
+ fi
+ ;;
+ *)
+ gcc_cv_as_cfi_sections_directive=yes
+ ;;
+esac])
+GCC_TARGET_TEMPLATE(HAVE_GAS_CFI_SECTIONS_DIRECTIVE)
AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_SECTIONS_DIRECTIVE,
[`if test $gcc_cv_as_cfi_sections_directive = yes;
then echo 1; else echo 0; fi`],
[`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
[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,
+gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as)],
+ gcc_cv_as_comdat_group,
[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
+ gcc_cv_as_comdat_group_group=no
else
- gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
+ gcc_GAS_CHECK_FEATURE([COMDAT group support (GNU as, %type)],
+ gcc_cv_as_comdat_group_percent,
[elf,2,16,0], [--fatal-warnings],
[.section .text,"axG",%progbits,.foo,comdat])
+ if test $gcc_cv_as_comdat_group_percent = yes; then
+ gcc_cv_as_comdat_group_group=no
+ else
+ case "${target}" in
+ # Sun as uses a completely different syntax.
+ *-*-solaris2*)
+ case "${target}" in
+ sparc*-*-solaris2*)
+ conftest_s='
+ .group foo,".text%foo",#comdat
+ .section ".text%foo", #alloc,#execinstr,#progbits
+ .globl foo
+ foo:
+ '
+ ;;
+ i?86-*-solaris2*)
+ conftest_s='
+ .group foo,.text%foo,#comdat
+ .section .text%foo, "ax", @progbits
+ .globl foo
+ foo:
+ '
+ ;;
+ esac
+ gcc_GAS_CHECK_FEATURE([COMDAT group support (Sun as, .group)],
+ gcc_cv_as_comdat_group_group,
+ ,, [$conftest_s])
+ ;;
+ esac
+ fi
fi
if test x"$ld_is_gold" = xyes; then
comdat_group=yes
changequote(,)dnl
case "${target}" in
*-*-solaris2.1[1-9]*)
+ comdat_group=no
# 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
+ # If using Sun as for COMDAT group as emitted by GCC, one needs at
+ # least ld version 1.2267.
+ if test "$ld_vers_major" -gt 1; then
comdat_group=yes
- else
- comdat_group=no
+ elif test "x$gas_flag" = xyes && test "$ld_vers_minor" -ge 1688; then
+ comdat_group=yes
+ elif test "$ld_vers_minor" -ge 2267; then
+ comdat_group=yes
fi
;;
*)
if test $comdat_group = no; then
gcc_cv_as_comdat_group=no
gcc_cv_as_comdat_group_percent=no
+ gcc_cv_as_comdat_group_group=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`],
+ [`if test $gcc_cv_as_comdat_group = yes \
+ || test $gcc_cv_as_comdat_group_percent = yes \
+ || test $gcc_cv_as_comdat_group_group = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler and linker support COMDAT groups.])
gcc_GAS_CHECK_FEATURE([line table discriminator support],
;;
i[34567]86-*-*)
case "$target" in
- 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$enable_tls" = xyes ; then
- on_solaris=yes
- else
- enable_tls=no;
- fi
- ;;
i[34567]86-*-solaris2.*)
on_solaris=yes
+ tga_func=___tls_get_addr
;;
*)
on_solaris=no
;;
sparc*-*-*)
case "$target" in
- 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$enable_tls" = xyes ; then
- on_solaris=yes
- else
- enable_tls=no;
- fi
- ;;
sparc*-sun-solaris2.*)
on_solaris=yes
+ tga_func=__tls_get_addr
;;
*)
on_solaris=no
esac
if test x$on_solaris = xyes && test x$gas_flag = xno; then
conftest_s='
- .section ".tdata",#alloc,#write,#tls
-foo: .long 25
- .text
- sethi %tgd_hi22(foo), %o0
- add %o0, %tgd_lo10(foo), %o1
- add %l7, %o1, %o0, %tgd_add(foo)
- call __tls_get_addr, %tgd_call(foo)
- sethi %tldm_hi22(foo), %l1
- add %l1, %tldm_lo10(foo), %l2
- add %l7, %l2, %o0, %tldm_add(foo)
- call __tls_get_addr, %tldm_call(foo)
- sethi %tldo_hix22(foo), %l3
- xor %l3, %tldo_lox10(foo), %l4
- add %o0, %l4, %l5, %tldo_add(foo)
- sethi %tie_hi22(foo), %o3
- add %o3, %tie_lo10(foo), %o3
- ld [%l7 + %o3], %o2, %tie_ld(foo)
- add %g7, %o2, %o4, %tie_add(foo)
- sethi %tle_hix22(foo), %l1
- xor %l1, %tle_lox10(foo), %o5
- ld [%g7 + %o5], %o1'
+ .section ".tdata",#alloc,#write,#tls'
tls_first_major=0
tls_first_minor=0
else
conftest_s='
- .section ".tdata","awT",@progbits
+ .section ".tdata","awT",@progbits'
+ tls_first_major=2
+ tls_first_minor=14
+ tls_as_opt="-32 --fatal-warnings"
+ fi
+ conftest_s="$conftest_s
foo: .long 25
.text
sethi %tgd_hi22(foo), %o0
add %g7, %o2, %o4, %tie_add(foo)
sethi %tle_hix22(foo), %l1
xor %l1, %tle_lox10(foo), %o5
- ld [%g7 + %o5], %o1'
- tls_first_major=2
- tls_first_minor=14
- tls_as_opt="-32 --fatal-warnings"
- fi
+ ld [%g7 + %o5], %o1"
;;
xtensa*-*-*)
conftest_s='
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
[set_have_as_tls=yes])
fi
+case "$target" in
+ *-*-irix6*)
+ # IRIX 6.5 rld and libc.so lack TLS support, so even if gas and gld
+ # with TLS support are in use, native TLS cannot work.
+ set_have_as_tls=no
+ ;;
+ *-*-osf*)
+ # Tru64 UNIX loader and libc.so lack TLS support, so even if gas and
+ # gld with TLS support are in use, native TLS cannot work.
+ set_have_as_tls=no
+ ;;
+ # TLS was introduced in the Solaris 9 FCS release and backported to
+ # Solaris 8 patches. Support for GNU-style TLS on x86 was only
+ # introduced in Solaris 9 4/04, replacing the earlier Sun style that Sun
+ # ld and GCC don't support any longer.
+ *-*-solaris2.*)
+ AC_MSG_CHECKING(linker and ld.so.1 TLS support)
+ ld_tls_support=no
+ # Check ld and ld.so.1 TLS support.
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ # Assume all interesting versions of GNU ld have TLS support.
+ # FIXME: still need ld.so.1 support, i.e. ld version checks below.
+ ld_tls_support=yes
+ else
+ case "$target" in
+ # Solaris 8/x86 ld has GNU style TLS support since version 1.280.
+ i?86-*-solaris2.8)
+ min_tls_ld_vers_minor=280
+ ;;
+ # Solaris 8/SPARC ld has TLS support since version 1.272.
+ sparc*-*-solaris2.8)
+ min_tls_ld_vers_minor=272
+ ;;
+ # Solaris 9/x86 ld has GNU style TLS support since version 1.374.
+ i?86-*-solaris2.9)
+ min_tls_ld_vers_minor=374
+ ;;
+ # Solaris 9/SPARC and Solaris 10+ ld have TLS support since FCS.
+ sparc*-*-solaris2.9 | *-*-solaris2.1[[0-9]]*)
+ min_tls_ld_vers_minor=343
+ ;;
+ esac
+ if test "$ld_vers_major" -gt 1 || \
+ test "$ld_vers_minor" -ge "$min_tls_ld_vers_minor"; then
+ ld_tls_support=yes
+ else
+ set_have_as_tls=no
+ fi
+ fi
+ AC_MSG_RESULT($ld_tls_support)
+
+ save_LIBS="$LIBS"
+ save_LDFLAGS="$LDFLAGS"
+ LIBS=
+ LDFLAGS=
+
+ AC_MSG_CHECKING(alternate thread library)
+ case "$target" in
+ # TLS support was backported to Solaris 8 patches, but only lives in
+ # the alternate thread library which became the default in Solaris 9.
+ # We want to always use that, irrespective of TLS support.
+ *-*-solaris2.8)
+ # Take multilib subdir into account. There's no spec to handle
+ # this. The 64 symlink exists since Solaris 8.
+ lwp_dir=/usr/lib/lwp
+ lwp_spec="-L$lwp_dir%{m64:/64} -R$lwp_dir%{m64:/64}"
+ LDFLAGS="-L$lwp_dir -R$lwp_dir"
+ ;;
+ *-*-solaris2*)
+ lwp_dir="none"
+ lwp_spec=""
+ ;;
+ esac
+ # Always define LIB_THREAD_LDFLAGS_SPEC, even without TLS support.
+ AC_DEFINE_UNQUOTED(LIB_THREAD_LDFLAGS_SPEC, "$lwp_spec",
+ [Define to the linker flags to use for -pthread.])
+ AC_MSG_RESULT($lwp_dir)
+
+ AC_MSG_CHECKING(library containing $tga_func)
+ # Before Solaris 10, __tls_get_addr (SPARC/x64) resp. ___tls_get_addr
+ # (32-bit x86) only lived in libthread, so check for that. Keep
+ # set_have_as_tls if found, disable if not.
+ AC_SEARCH_LIBS([$tga_func], [thread],, [set_have_as_tls=no])
+ # Clear LIBS if we cannot support TLS.
+ if test $set_have_as_tls = no; then
+ LIBS=
+ fi
+ # Always define LIB_TLS_SPEC, even without TLS support.
+ AC_DEFINE_UNQUOTED(LIB_TLS_SPEC, "$LIBS",
+ [Define to the library containing __tls_get_addr/___tls_get_addr.])
+ AC_MSG_RESULT($LIBS)
+
+ LIBS="$save_LIBS"
+ LDFLAGS="$save_LDFLAGS"
+ ;;
+esac
if test $set_have_as_tls = yes ; then
AC_DEFINE(HAVE_AS_TLS, 1,
- [Define if your assembler supports thread-local storage.])
+ [Define if your assembler and linker support thread-local storage.])
fi
# Target-specific assembler checks.
AC_MSG_CHECKING(linker -Bstatic/-Bdynamic option)
gcc_cv_ld_static_dynamic=no
+gcc_cv_ld_static_option='-Bstatic'
+gcc_cv_ld_dynamic_option='-Bdynamic'
if test $in_tree_ld = yes ; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 10 -o "$gcc_cv_gld_major_version" -gt 2; then
gcc_cv_ld_static_dynamic=yes
fi
elif test x$gcc_cv_ld != x; then
- # Check if linker supports -Bstatic/-Bdynamic option
- if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
- && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
- gcc_cv_ld_static_dynamic=yes
- fi
+ # Check if linker supports -Bstatic/-Bdynamic option
+ if $gcc_cv_ld --help 2>/dev/null | grep -- -Bstatic > /dev/null \
+ && $gcc_cv_ld --help 2>/dev/null | grep -- -Bdynamic > /dev/null; then
+ gcc_cv_ld_static_dynamic=yes
+ else
+ case "$target" in
+ # Tru64 UNIX support -noso/-so_archive instead of -Bstatic/-Bdynamic.
+ alpha*-dec-osf*)
+ gcc_cv_ld_static_dynamic=yes
+ gcc_cv_ld_static_option="-noso"
+ gcc_cv_ld_dynamic_option="-so_archive"
+ ;;
+ # IRIX 6 ld supports -Bstatic/-Bdynamic.
+ mips-sgi-irix6*)
+ gcc_cv_ld_static_dynamic=yes
+ ;;
+ # Solaris 2 ld always supports -Bstatic/-Bdynamic.
+ *-*-solaris2*)
+ gcc_cv_ld_static_dynamic=yes
+ ;;
+ esac
+ fi
fi
if test x"$gcc_cv_ld_static_dynamic" = xyes; then
AC_DEFINE(HAVE_LD_STATIC_DYNAMIC, 1,
-[Define if your linker supports -Bstatic/-Bdynamic option.])
+[Define if your linker supports -Bstatic/-Bdynamic or equivalent options.])
+ AC_DEFINE_UNQUOTED(LD_STATIC_OPTION, "$gcc_cv_ld_static_option",
+[Define to the linker option to disable use of shared objects.])
+ AC_DEFINE_UNQUOTED(LD_DYNAMIC_OPTION, "$gcc_cv_ld_dynamic_option",
+[Define to the linker option to enable use of shared objects.])
fi
AC_MSG_RESULT($gcc_cv_ld_static_dynamic)
AC_MSG_RESULT($gcc_cv_ld_demangle)
fi
+AC_MSG_CHECKING(linker plugin support)
+gcc_cv_lto_plugin=0
+if test -f liblto_plugin.la; then
+ if test $in_tree_ld = yes -a x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld"; then
+ if test "$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=2
+ elif test "$ld_is_gold" = yes -a "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -eq 20; then
+ gcc_cv_lto_plugin=1
+
+ fi
+ elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" = x"$gcc_cv_ld" && echo "$ld_ver" | grep GNU > /dev/null; then
+ # Require GNU ld or gold 2.21+ for plugin support by default.
+ if test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -ge 21; then
+ gcc_cv_lto_plugin=2
+ # Allow -fuse-linker-plugin to enable plugin support in GNU gold 2.20.
+ elif test "$ld_is_gold" = yes -a "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 20; then
+ gcc_cv_lto_plugin=1
+ fi
+ elif test x"$ORIGINAL_PLUGIN_LD_FOR_TARGET" != x"$gcc_cv_ld"; then
+ # Allow -fuse-linker-plugin if plugin linker differs from
+ # default/specified linker.
+ gcc_cv_lto_plugin=1
+ fi
+fi
+AC_DEFINE_UNQUOTED(HAVE_LTO_PLUGIN, $gcc_cv_lto_plugin,
+ [Define to the level of your linker's plugin support.])
+AC_MSG_RESULT($gcc_cv_lto_plugin)
+
case "$target" in
# All TARGET_ABI_OSF targets.
alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
gcc_cv_as_sparc_gotdata_op,,
[-K PIC],
[.text
+.align 4
foo:
nop
bar:
ld [[%l7 + %g1]], %g2, %gdop(foo)],
[if test x$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 $gcc_cv_objdump -s -j .text conftest 2> /dev/null \
- | grep ' 03000004 82186004 c405c001'> /dev/null 2>&1; then
+ if test x$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
+ else
gcc_cv_as_sparc_gotdata_op=yes
- fi
fi
- else
- gcc_cv_as_sparc_gotdata_op=yes
fi
fi
rm -f conftest],
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>'.])
+ lock addl %edi, (%eax,%esi)
+ lock orl $0, (%esp)],,
+ [AC_DEFINE(HAVE_AS_IX86_REP_LOCK_PREFIX, 1,
+ [Define if the assembler supports 'rep <insn>, lock <insn>'.])])
+
+ gcc_GAS_CHECK_FEATURE([R_386_TLS_GD_PLT reloc],
+ gcc_cv_as_ix86_tlsgdplt,,,
+ [call tls_gd@tlsgdplt],,
+ [AC_DEFINE(HAVE_AS_IX86_TLSGDPLT, 1,
+ [Define if your assembler supports @tlsgdplt.])])
+
+ gcc_GAS_CHECK_FEATURE([R_386_TLS_LDM_PLT reloc],
+ gcc_cv_as_ix86_tlsldmplt,,,
+ [call tls_ld@tlsldmplt],,
+ [AC_DEFINE(HAVE_AS_IX86_TLSLDMPLT, 1,
+ [Define if your assembler supports @tlsldmplt.])])
;;
[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
echo ' .end x' >> conftest.s
if $gcc_cv_as -o conftest.o conftest.s >/dev/null 2>&AS_MESSAGE_LOG_FD \
&& $gcc_cv_ld -shared -o conftest.so conftest.o >/dev/null 2>&AS_MESSAGE_LOG_FD; then
- if $gcc_cv_objdump -d conftest.so | grep -q jalr \
- && $gcc_cv_objdump -d conftest.so | grep -q "bal.*<x>"; then
+ if $gcc_cv_objdump -d conftest.so | grep jalr >/dev/null 2>&1 \
+ && $gcc_cv_objdump -d conftest.so | grep "bal.*<x>" >/dev/null 2>&1; then
gcc_cv_as_ld_jalr_reloc=yes
fi
fi
# add some instruction here to (also) show we expect this might work.
# ??? Once 2.11 is released, probably need to add first known working
# version to the per-target configury.
-case "$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 1.2251.
+ if test "$ld_vers_major" -gt 1 || test "$ld_vers_minor" -ge 2251; 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)
fi
AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections)
+AC_MSG_CHECKING(linker EH garbage collection of sections bug)
+gcc_cv_ld_eh_gc_sections_bug=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -lt 19 -o "$gcc_cv_gld_major_version" -lt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_eh_gc_sections_bug=yes
+ fi
+elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x -a x$gcc_cv_as_comdat_group = xyes; then
+ gcc_cv_ld_eh_gc_sections_bug=yes
+ cat > conftest.s <<EOF
+ .section .text
+.globl _start
+ .type _start, @function
+_start:
+ .long foo
+ .size _start, .-_start
+ .section .text.startup.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
+ :
+ elif $gcc_cv_objdump -h conftest 2> /dev/null \
+ | grep gcc_except_table > /dev/null; then
+ gcc_cv_ld_eh_gc_sections_bug=no
+ fi
+ fi
+ rm -f conftest.s conftest.o conftest
+fi
+if test x$gcc_cv_ld_eh_gc_sections_bug = xyes; then
+ AC_DEFINE(HAVE_LD_EH_GC_SECTIONS_BUG, 1,
+ [Define if your linker has buggy garbage collection of
+ sections support when .text.startup.foo like sections are used.])
+fi
+AC_MSG_RESULT($gcc_cv_ld_eh_gc_sections_bug)
+
# --------
# UNSORTED
# --------
AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
[Define if your PowerPC64 linker only needs function descriptor syms.])
fi
+
+ AC_CACHE_CHECK(linker large toc support,
+ gcc_cv_ld_large_toc,
+ [gcc_cv_ld_large_toc=no
+ if test $in_tree_ld = yes ; then
+ if test "$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_ld_large_toc=yes
+ fi
+ elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
+ cat > conftest.s <<EOF
+ .section ".tbss","awT",@nobits
+ .align 3
+ie0: .space 8
+ .global _start
+ .text
+_start:
+ addis 9,13,ie0@got@tprel@ha
+ ld 9,ie0@got@tprel@l(9)
+EOF
+ if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -melf64ppc --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+ gcc_cv_ld_large_toc=yes
+ fi
+ rm -f conftest conftest.o conftest.s
+ fi
+ ])
+ if test x"$gcc_cv_ld_large_toc" = xyes; then
+ AC_DEFINE(HAVE_LD_LARGE_TOC, 1,
+ [Define if your PowerPC64 linker supports a large TOC.])
+ fi
;;
esac
fi
AC_ARG_ENABLE(linker-build-id,
-[ --enable-linker-build-id
- compiler will always pass --build-id to linker],
+[AS_HELP_STRING([--enable-linker-build-id],
+ [compiler will always pass --build-id to linker])],
[],
enable_linker_build_id=no)
fi
fi
+# In binutils 2.21, GNU ld gained support for new emulations fully
+# supporting the Solaris 2 ABI. Detect their presence in the linker used.
+AC_CACHE_CHECK(linker *_sol2 emulation support,
+ gcc_cv_ld_sol2_emulation,
+ [gcc_cv_ld_sol2_emulation=no
+ if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a \
+ "$gcc_cv_gld_minor_version" -ge 21 -o \
+ "$gcc_cv_gld_major_version" -gt 2 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_sol2_emulation=yes
+ fi
+ elif test x$gcc_cv_ld != x; then
+ if $gcc_cv_ld -V 2>/dev/null | sed -e '1,/Supported emulations/d;q' | \
+ grep _sol2 > /dev/null; then
+ gcc_cv_ld_sol2_emulation=yes
+ fi
+ fi])
+if test x"$gcc_cv_ld_sol2_emulation" = xyes; then
+ AC_DEFINE(HAVE_LD_SOL2_EMULATION, 1,
+ [Define if your linker supports the *_sol2 emulations.])
+fi
+
AC_CACHE_CHECK(linker --sysroot support,
gcc_cv_ld_sysroot,
[gcc_cv_ld_sysroot=no
[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]
[Define if your target C library provides stack protector support])
fi
+# Test for <sys/sdt.h> on the target.
+GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
+AC_MSG_CHECKING(sys/sdt.h in the target C library)
+have_sys_sdt_h=no
+if test -f $target_header_dir/sys/sdt.h; then
+ AC_DEFINE(HAVE_SYS_SDT_H, 1,
+ [Define if your target C library provides sys/sdt.h])
+fi
+AC_MSG_RESULT($have_sys_sdt_h)
+
# 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 "$target" in
powerpc*-*-linux* | \
- powerpc*-*-gnu* | \
sparc*-*-linux* | \
s390*-*-linux* | \
alpha*-*-linux*)
AC_ARG_WITH(long-double-128,
-[ --with-long-double-128 Use 128-bit long double by default.],
+ [AS_HELP_STRING([--with-long-double-128],
+ [use 128-bit long double by default])],
gcc_cv_target_ldbl128="$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($gcc_cv_target_dl_iterate_phdr)
+
# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
-[ --with-gc={page,zone} choose the garbage collection mechanism to use
- with the compiler],
+[AS_HELP_STRING([--with-gc={page,zone}],
+ [choose the garbage collection mechanism to use
+ with the compiler])],
[case "$withval" in
page)
GGC=ggc-$withval
zlibdir=-L../zlib
zlibinc="-I\$(srcdir)/../zlib"
AC_ARG_WITH(system-zlib,
-[ --with-system-zlib use installed libz],
+[AS_HELP_STRING([--with-system-zlib], [use installed libz])],
zlibdir=
zlibinc=
)
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
dnl maintainer-mode is disabled by default
AC_ARG_ENABLE(maintainer-mode,
-[ --enable-maintainer-mode
- enable make rules and dependencies not useful
- (and sometimes confusing) to the casual installer],
+[AS_HELP_STRING([--enable-maintainer-mode],
+ [enable make rules and dependencies not useful
+ (and sometimes confusing) to the casual installer])],
maintainer_mode=$enableval,
maintainer_mode=no)
# `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=
-# List of language subdirectory makefiles. Deprecated.
-all_lang_makefiles=
# Additional files for gengtype
all_gtfiles="$target_gtfiles"
all_lang_makefrags="$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"
fi
- if test -f ${srcdir}/$gcc_subdir/Makefile.in
- then all_lang_makefiles="$gcc_subdir/Makefile"
- fi
all_languages="$all_languages $language"
all_compilers="$all_compilers $compilers"
all_outputs="$all_outputs $outputs"
AC_DEFINE(ENABLE_LTO, 1, [Define to enable LTO support.])
enable_lto=yes
AC_SUBST(enable_lto)
- # LTO needs to speak the platform's object file format, and has a
- # number of implementations of the required binary file access APIs.
- # ELF is the most common, and default. We only link libelf if ELF
- # is indeed the selected format.
- LTO_BINARY_READER=${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 $all_opt_files > option-includes.mk
+option_includes="option-includes.mk"
+AC_SUBST_FILE(option_includes)
+
+# --------
# UNSORTED
# --------
# Find a directory in which to install a shared libgcc.
AC_ARG_ENABLE(version-specific-runtime-libs,
-[ --enable-version-specific-runtime-libs
- specify that runtime libraries should be
- installed in a compiler-specific directory])
+[AS_HELP_STRING([--enable-version-specific-runtime-libs],
+ [specify that runtime libraries should be
+ installed in a compiler-specific directory])])
AC_ARG_WITH(slibdir,
-[ --with-slibdir=DIR shared libraries in DIR [[LIBDIR]]],
+[AS_HELP_STRING([--with-slibdir=DIR], [shared libraries in DIR @<:@LIBDIR@:>@])],
slibdir="$with_slibdir",
if test "${enable_version_specific_runtime_libs+set}" = set; then
slibdir='$(libsubdir)'
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
AC_SUBST(all_lang_makefrags)
-AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages)
AC_SUBST(all_selected_languages)
AC_SUBST(build_exeext)
AC_SUBST(TM_MULTILIB_CONFIG)
AC_SUBST(TM_MULTILIB_EXCEPTIONS_CONFIG)
AC_SUBST(extra_gcc_objs)
+AC_SUBST(user_headers_inc_next_pre)
+AC_SUBST(user_headers_inc_next_post)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
AC_SUBST(extra_parts)
AC_SUBST(tm_file_list)
AC_SUBST(tm_include_list)
AC_SUBST(tm_defines)
+AC_SUBST(libgcc_tm_file_list)
+AC_SUBST(libgcc_tm_include_list)
AC_SUBST(tm_p_file_list)
AC_SUBST(tm_p_include_list)
AC_SUBST(xm_file_list)
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${LIBELFLIBS}" != "x" ; then
- AC_DEFINE(HAVE_libelf, 1, [Define if libelf is in use.])
-fi
-
# Check for plugin support
AC_ARG_ENABLE(plugin,
-[ --enable-plugin enable plugin support],
+[AS_HELP_STRING([--enable-plugin], [enable plugin support])],
enable_plugin=$enableval,
enable_plugin=yes; default_plugin=yes)
pluginlibs=
-if test x"$enable_plugin" = x"yes"; then
- case "${host}" in
- *-*-darwin*)
+case "${host}" in
+ *-*-darwin*)
+ if test x$build = x$host; then
+ export_sym_check="nm${exeext} -g"
+ elif test x$host = x$target; then
export_sym_check="$gcc_cv_nm -g"
- ;;
- *)
+ else
+ export_sym_check=
+ fi
+ ;;
+ *)
+ if test x$build = x$host; then
+ export_sym_check="objdump${exeext} -T"
+ elif test x$host = x$target; then
export_sym_check="$gcc_cv_objdump -T"
- ;;
- esac
+ else
+ export_sym_check=
+ fi
+ ;;
+esac
+
+if test x"$enable_plugin" = x"yes"; then
+
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
- : # No need to use a flag
- else
- AC_MSG_CHECKING([for -rdynamic])
- ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
+ if test "x$export_sym_check" != x; then
+ 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
- plugin_rdynamic=yes
- pluginlibs="-rdynamic"
+ : # No need to use a flag
+ AC_MSG_RESULT([yes])
else
- plugin_rdynamic=no
- enable_plugin=no
+ AC_MSG_RESULT([yes])
+ AC_MSG_CHECKING([for -rdynamic])
+ ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
+ if $export_sym_check conftest | grep foobar > /dev/null; then
+ plugin_rdynamic=yes
+ pluginlibs="-rdynamic"
+ else
+ plugin_rdynamic=no
+ enable_plugin=no
+ fi
+ AC_MSG_RESULT([$plugin_rdynamic])
fi
- AC_MSG_RESULT([$plugin_rdynamic])
+ else
+ AC_MSG_RESULT([unable to check])
fi
# Check -ldl
# Check that we can build shared objects with -fPIC -shared
saved_LDFLAGS="$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
+
+
+# Specify what hash style to use by default.
+AC_ARG_WITH([linker-hash-style],
+[AC_HELP_STRING([--with-linker-hash-style={sysv,gnu,both}],
+ [specify the linker hash style])],
+[case x"$withval" in
+ xsysv)
+ LINKER_HASH_STYLE=sysv
+ ;;
+ xgnu)
+ LINKER_HASH_STYLE=gnu
+ ;;
+ xboth)
+ LINKER_HASH_STYLE=both
+ ;;
+ *)
+ AC_MSG_ERROR([$withval is an invalid option to --with-linker-hash-style])
+ ;;
+ esac],
+[LINKER_HASH_STYLE=''])
+if test x"${LINKER_HASH_STYLE}" != x; then
+ AC_DEFINE_UNQUOTED(LINKER_HASH_STYLE, "$LINKER_HASH_STYLE",
+ [The linker hash style])
+fi
+
# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)
echo > cstamp-h ;;
esac
# Make sure all the subdirs exist.
-for d in $subdirs doc build
+for d in $subdirs doc build c-family
do
test -d $d || mkdir $d
done
],
[subdirs='$subdirs'])
AC_OUTPUT
+
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