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freebsd/contrib/gcc/configure.ac
Alexander Kabaev 9a63ad9273 Gcc 3.4.2 20040728.
2004-07-28 03:11:36 +00:00

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# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
# Free Software Foundation, Inc.
#This file is part of GCC.
#GCC is free software; you can redistribute it and/or modify it under
#the terms of the GNU General Public License as published by the Free
#Software Foundation; either version 2, or (at your option) any later
#version.
#GCC is distributed in the hope that it will be useful, but WITHOUT
#ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
#for more details.
#You should have received a copy of the GNU General Public License
#along with GCC; see the file COPYING. If not, write to the Free
#Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.
# --------------------------------
# Initialization and sanity checks
# --------------------------------
AC_PREREQ(2.57)
AC_INIT
AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
# Determine the host, build, and target systems
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
# Determine the noncanonical target name, for directory use.
_GCC_TOPLEV_NONCANONICAL_TARGET
# Determine the target- and build-specific subdirectories
GCC_TOPLEV_SUBDIRS
# Set program_transform_name
AC_ARG_PROGRAM
# Check for bogus environment variables.
# Test if LIBRARY_PATH contains the notation for the current directory
# since this would lead to problems installing/building glibc.
# LIBRARY_PATH contains the current directory if one of the following
# is true:
# - one of the terminals (":" and ";") is the first or last sign
# - two terminals occur directly after each other
# - the path contains an element with a dot in it
AC_MSG_CHECKING(LIBRARY_PATH variable)
changequote(,)dnl
case ${LIBRARY_PATH} in
[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
library_path_setting="contains current directory"
;;
*)
library_path_setting="ok"
;;
esac
changequote([,])dnl
AC_MSG_RESULT($library_path_setting)
if test "$library_path_setting" != "ok"; then
AC_MSG_ERROR([
*** LIBRARY_PATH shouldn't contain the current directory when
*** building gcc. Please change the environment variable
*** and run configure again.])
fi
# Test if GCC_EXEC_PREFIX contains the notation for the current directory
# since this would lead to problems installing/building glibc.
# GCC_EXEC_PREFIX contains the current directory if one of the following
# is true:
# - one of the terminals (":" and ";") is the first or last sign
# - two terminals occur directly after each other
# - the path contains an element with a dot in it
AC_MSG_CHECKING(GCC_EXEC_PREFIX variable)
changequote(,)dnl
case ${GCC_EXEC_PREFIX} in
[:\;]* | *[:\;] | *[:\;][:\;]* | *[:\;]. | .[:\;]*| . | *[:\;].[:\;]* )
gcc_exec_prefix_setting="contains current directory"
;;
*)
gcc_exec_prefix_setting="ok"
;;
esac
changequote([,])dnl
AC_MSG_RESULT($gcc_exec_prefix_setting)
if test "$gcc_exec_prefix_setting" != "ok"; then
AC_MSG_ERROR([
*** GCC_EXEC_PREFIX shouldn't contain the current directory when
*** building gcc. Please change the environment variable
*** and run configure again.])
fi
# -----------
# Directories
# -----------
# Specify the local prefix
local_prefix=
AC_ARG_WITH(local-prefix,
[ --with-local-prefix=DIR specifies directory to put local include],
[case "${withval}" in
yes) AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
no) ;;
*) local_prefix=$with_local_prefix ;;
esac])
# Default local prefix if it is empty
if test x$local_prefix = x; then
local_prefix=/usr/local
fi
# Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
# passed in by the toplevel make and thus we'd get different behavior
# depending on where we built the sources.
gcc_gxx_include_dir=
# Specify the g++ header file directory
AC_ARG_WITH(gxx-include-dir,
[ --with-gxx-include-dir=DIR
specifies directory to put g++ header files],
[case "${withval}" in
yes) AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
no) ;;
*) gcc_gxx_include_dir=$with_gxx_include_dir ;;
esac])
if test x${gcc_gxx_include_dir} = x; then
if test x${enable_version_specific_runtime_libs} = xyes; then
gcc_gxx_include_dir='${libsubdir}/include/c++'
else
topsrcdir=${srcdir}/.. . ${srcdir}/../config.if
changequote(<<, >>)dnl
gcc_gxx_include_dir="\$(libsubdir)/\$(unlibsubdir)/..\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/[^/]*|/..|g'\`/include/"${libstdcxx_incdir}
changequote([, ])dnl
fi
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],
[if test x$withval = xyes; then
AC_MSG_ERROR([option --with-cpp-install-dir requires an argument])
elif test x$withval != xno; then
cpp_install_dir=$withval
fi])
# We would like to our source tree to be readonly. However when releases or
# pre-releases are generated, the flex/bison generated files as well as the
# various formats of manuals need to be included along with the rest of the
# sources. Therefore we have --enable-generated-files-in-srcdir to do
# just that.
AC_MSG_CHECKING([whether to place generated files in the source directory])
dnl generated-files-in-srcdir is disabled by default
AC_ARG_ENABLE(generated-files-in-srcdir,
[ --enable-generated-files-in-srcdir
put copies of generated files in source dir
intended for creating source tarballs for users
without texinfo bison or flex.],
generated_files_in_srcdir=$enableval,
generated_files_in_srcdir=no)
AC_MSG_RESULT($generated_files_in_srcdir)
if test "$generated_files_in_srcdir" = "yes"; then
GENINSRC=''
else
GENINSRC='#'
fi
AC_SUBST(GENINSRC)
# -------------------
# Find default linker
# -------------------
# With GNU ld
AC_ARG_WITH(gnu-ld,
[ --with-gnu-ld arrange to work with GNU ld.],
gnu_ld_flag="$with_gnu_ld",
gnu_ld_flag=no)
# With pre-defined ld
AC_ARG_WITH(ld,
[ --with-ld arrange to use the specified ld (full pathname)],
DEFAULT_LINKER="$with_ld")
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test ! -x "$DEFAULT_LINKER"; then
AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
gnu_ld_flag=yes
fi
AC_DEFINE_UNQUOTED(DEFAULT_LINKER,"$DEFAULT_LINKER",
[Define to enable the use of a default linker.])
fi
AC_MSG_CHECKING([whether a default linker was specified])
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test x"$gnu_ld_flag" = x"no"; then
AC_MSG_RESULT([yes ($DEFAULT_LINKER)])
else
AC_MSG_RESULT([yes ($DEFAULT_LINKER - GNU ld)])
fi
else
AC_MSG_RESULT(no)
fi
# ----------------------
# Find default assembler
# ----------------------
# With GNU as
AC_ARG_WITH(gnu-as,
[ --with-gnu-as arrange to work with GNU as],
gas_flag="$with_gnu_as",
gas_flag=no)
AC_ARG_WITH(as,
[ --with-as arrange to use the specified as (full pathname)],
DEFAULT_ASSEMBLER="$with_as")
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
if test ! -x "$DEFAULT_ASSEMBLER"; then
AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
gas_flag=yes
fi
AC_DEFINE_UNQUOTED(DEFAULT_ASSEMBLER,"$DEFAULT_ASSEMBLER",
[Define to enable the use of a default assembler.])
fi
AC_MSG_CHECKING([whether a default assembler was specified])
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
if test x"$gas_flag" = x"no"; then
AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER)])
else
AC_MSG_RESULT([yes ($DEFAULT_ASSEMBLER - GNU as)])
fi
else
AC_MSG_RESULT(no)
fi
# ---------------
# Find C compiler
# ---------------
# If a non-executable a.out is present (e.g. created by GNU as above even if
# invoked with -v only), the IRIX 6 native ld just overwrites the existing
# file, even when creating an executable, so an execution test fails.
# Remove possible default executable files to avoid this.
#
# FIXME: This really belongs into AC_PROG_CC and can be removed once
# Autoconf includes it.
rm -f a.out a.exe b.out
# Find the native compiler
AC_PROG_CC
AC_PROG_CC_C_O
# autoconf is lame and doesn't give us any substitution variable for this.
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
NO_MINUS_C_MINUS_O=yes
else
OUTPUT_OPTION='-o $@'
fi
AC_SUBST(NO_MINUS_C_MINUS_O)
AC_SUBST(OUTPUT_OPTION)
# -------------------------
# Check C compiler features
# -------------------------
AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
ac_cv_prog_cc_no_long_long,
[save_CFLAGS="$CFLAGS"
CFLAGS="-Wno-long-long"
AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
ac_cv_prog_cc_no_long_long=no)
CFLAGS="$save_CFLAGS"])
AC_PROG_CPP
AC_C_INLINE
gcc_AC_C_LONG_LONG
gcc_AC_C__BOOL
# sizeof(char) is 1 by definition.
AC_COMPILE_CHECK_SIZEOF(void *)
AC_COMPILE_CHECK_SIZEOF(short)
AC_COMPILE_CHECK_SIZEOF(int)
AC_COMPILE_CHECK_SIZEOF(long)
if test $ac_cv_c_long_long = yes; then
AC_COMPILE_CHECK_SIZEOF(long long)
fi
if test $ac_cv_c___int64 = yes; then
AC_COMPILE_CHECK_SIZEOF(__int64)
fi
# -----------------
# Find Ada compiler
# -----------------
# See if GNAT has been installed
gcc_AC_PROG_GNAT
# ---------------------
# Warnings and checking
# ---------------------
strict1_warn=
if test $ac_cv_prog_cc_no_long_long = yes ; then
strict1_warn="-pedantic -Wno-long-long"
fi
AC_SUBST(strict1_warn)
# If the native compiler is GCC, we can enable warnings even in stage1.
# That's useful for people building cross-compilers, or just running a
# quick `make'.
warn_cflags=
if test "x$GCC" = "xyes"; then
warn_cflags='$(GCC_WARN_CFLAGS)'
fi
AC_SUBST(warn_cflags)
# Enable -Werror in bootstrap stage2 and later.
# Change the default to "no" on release branches.
AC_ARG_ENABLE(werror,
[ --enable-werror enable -Werror in bootstrap stage2 and later], [],
[enable_werror=no])
if test x$enable_werror = xyes ; then
WERROR=-Werror
fi
AC_SUBST(WERROR)
# Enable expensive internal checks
AC_ARG_ENABLE(checking,
[ --enable-checking[=LIST]
enable expensive run-time checks. With LIST,
enable only specific categories of checks.
Categories are: misc,tree,rtl,rtlflag,gc,gcac,fold;
default is no checking],
[ac_checking=
ac_tree_checking=
ac_rtl_checking=
ac_rtlflag_checking=
ac_gc_checking=
ac_gc_always_collect=
ac_fold_checking=
case "${enableval}" in
yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
ac_rtlflag_checking=1 ;;
no) ;;
*) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
set fnord $enableval; shift
IFS="$ac_save_IFS"
for check
do
case $check in
misc) ac_checking=1 ;;
tree) ac_tree_checking=1 ;;
rtlflag) ac_rtlflag_checking=1 ;;
rtl) ac_rtl_checking=1 ;;
gc) ac_gc_checking=1 ;;
gcac) ac_gc_always_collect=1 ;;
fold) ac_fold_checking=1 ;;
valgrind) ac_checking_valgrind=1 ;;
*) AC_MSG_ERROR(unknown check category $check) ;;
esac
done
;;
esac
],
# By default, disable all checks for release versions of GCC.
[ac_checking=; ac_tree_checking=; ac_gc_checking=; ac_rtlflag_checking=;])
nocommon_flag=""
if test x$ac_checking != x ; then
AC_DEFINE(ENABLE_CHECKING, 1,
[Define if you want more run-time sanity checks. This one gets a grab
bag of miscellaneous but relatively cheap checks.])
nocommon_flag=-fno-common
fi
AC_SUBST(nocommon_flag)
if test x$ac_tree_checking != x ; then
AC_DEFINE(ENABLE_TREE_CHECKING, 1,
[Define if you want all operations on trees (the basic data
structure of the front ends) to be checked for dynamic type safety
at runtime. This is moderately expensive.])
fi
if test x$ac_rtl_checking != x ; then
AC_DEFINE(ENABLE_RTL_CHECKING, 1,
[Define if you want all operations on RTL (the basic data structure
of the optimizer and back end) to be checked for dynamic type safety
at runtime. This is quite expensive.])
fi
if test x$ac_rtlflag_checking != x ; then
AC_DEFINE(ENABLE_RTL_FLAG_CHECKING, 1,
[Define if you want RTL flag accesses to be checked against the RTL
codes that are supported for each access macro. This is relatively
cheap.])
fi
if test x$ac_gc_checking != x ; then
AC_DEFINE(ENABLE_GC_CHECKING, 1,
[Define if you want the garbage collector to do object poisoning and
other memory allocation checks. This is quite expensive.])
fi
if test x$ac_gc_always_collect != x ; then
AC_DEFINE(ENABLE_GC_ALWAYS_COLLECT, 1,
[Define if you want the garbage collector to operate in maximally
paranoid mode, validating the entire heap and collecting garbage at
every opportunity. This is extremely expensive.])
fi
if test x$ac_fold_checking != x ; then
AC_DEFINE(ENABLE_FOLD_CHECKING, 1,
[Define if you want fold checked that it never destructs its argument.
This is quite expensive.])
fi
valgrind_path_defines=
valgrind_command=
dnl # This check AC_REQUIREs various stuff, so it *must not* be inside
dnl # an if statement. This was the source of very frustrating bugs
dnl # in converting to autoconf 2.5x!
AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
if test x$ac_checking_valgrind != x ; then
# It is certainly possible that there's valgrind but no valgrind.h.
# GCC relies on making annotations so we must have both.
AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
AC_TRY_CPP(
[#include <valgrind/memcheck.h>
#ifndef VALGRIND_DISCARD
#error VALGRIND_DISCARD not defined
#endif],
[gcc_cv_header_valgrind_memcheck_h=yes],
[gcc_cv_header_valgrind_memcheck_h=no])
AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h)
AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
AC_TRY_CPP(
[#include <memcheck.h>
#ifndef VALGRIND_DISCARD
#error VALGRIND_DISCARD not defined
#endif],
[gcc_cv_header_memcheck_h=yes],
gcc_cv_header_memcheck_h=no)
AC_MSG_RESULT($gcc_cv_header_memcheck_h)
AM_PATH_PROG_WITH_TEST(valgrind_path, valgrind,
[$ac_dir/$ac_word --version | grep valgrind- >/dev/null 2>&1])
if test "x$valgrind_path" = "x" \
|| (test $have_valgrind_h = no \
&& test $gcc_cv_header_memcheck_h = no \
&& test $gcc_cv_header_valgrind_memcheck_h = no); then
AC_MSG_ERROR([*** Can't find both valgrind and valgrind/memcheck.h, memcheck.h or valgrind.h])
fi
valgrind_path_defines=-DVALGRIND_PATH='\"'$valgrind_path'\"'
valgrind_command="$valgrind_path -q"
AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
[Define if you want to run subprograms and generated programs
through valgrind (a memory checker). This is extremely expensive.])
if test $gcc_cv_header_valgrind_memcheck_h = yes; then
AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
[Define if valgrind's valgrind/memcheck.h header is installed.])
fi
if test $gcc_cv_header_memcheck_h = yes; then
AC_DEFINE(HAVE_MEMCHECK_H, 1,
[Define if valgrind's memcheck.h header is installed.])
fi
fi
AC_SUBST(valgrind_path_defines)
AC_SUBST(valgrind_command)
# Enable code coverage collection
AC_ARG_ENABLE(coverage,
[ --enable-coverage[=LEVEL]
enable compiler\'s code coverage collection.
Use to measure compiler performance and locate
unused parts of the compiler. With LEVEL, specify
optimization. Values are opt, noopt,
default is noopt],
[case "${enableval}" in
yes|noopt)
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
;;
opt)
coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
;;
*)
AC_MSG_ERROR(unknown coverage setting $enableval)
;;
esac],
[coverage_flags=""])
AC_SUBST(coverage_flags)
AC_ARG_ENABLE(gather-detailed-mem-stats,
[ --enable-gather-detailed-mem-stats enable detailed memory allocation stats gathering], [],
[enable_gather_detailed_mem_stats=no])
if test x$enable_gather_detailed_mem_stats = xyes ; then
AC_DEFINE(GATHER_STATISTICS, 1,
[Define to enable detailed memory allocation stats gathering.])
fi
# -------------------------------
# Miscenalleous configure options
# -------------------------------
# With stabs
AC_ARG_WITH(stabs,
[ --with-stabs arrange to use stabs instead of host debug format],
stabs="$with_stabs",
stabs=no)
# Determine whether or not multilibs are enabled.
AC_ARG_ENABLE(multilib,
[ --enable-multilib enable library support for multiple ABIs],
[], [enable_multilib=yes])
AC_SUBST(enable_multilib)
# Enable __cxa_atexit for C++.
AC_ARG_ENABLE(__cxa_atexit,
[ --enable-__cxa_atexit enable __cxa_atexit for C++],
[], [])
# Enable threads
# Pass with no value to take the default
# Pass with a value to specify a thread package
AC_ARG_ENABLE(threads,
[ --enable-threads enable thread usage for target GCC
--enable-threads=LIB use LIB thread package for target GCC],,
enable_threads='')
# Save in case it gets overwritten in config.gcc
enable_threads_flag=$enable_threads
AC_ARG_ENABLE(objc-gc,
[ --enable-objc-gc enable the use of Boehm's garbage collector with
the GNU Objective-C runtime],
if test x$enable_objc_gc = xno; then
objc_boehm_gc=''
else
objc_boehm_gc=1
fi,
objc_boehm_gc='')
AC_ARG_WITH(dwarf2,
[ --with-dwarf2 force the default debug format to be DWARF 2],
dwarf2="$with_dwarf2",
dwarf2=no)
AC_ARG_ENABLE(shared,
[ --disable-shared don't provide a shared libgcc],
[
case $enable_shared in
yes | no) ;;
*)
enable_shared=no
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
for pkg in $enableval; do
if test "X$pkg" = "Xgcc" || test "X$pkg" = "Xlibgcc"; then
enable_shared=yes
fi
done
IFS="$ac_save_ifs"
;;
esac
], [enable_shared=yes])
AC_SUBST(enable_shared)
AC_ARG_WITH(sysroot,
[ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
[
case ${with_sysroot} in
yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
*) TARGET_SYSTEM_ROOT=$with_sysroot ;;
esac
TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
if test "x$exec_prefix" = xNONE; then
if test "x$prefix" = xNONE; then
test_prefix=/usr/local
else
test_prefix=$prefix
fi
else
test_prefix=$exec_prefix
fi
case ${TARGET_SYSTEM_ROOT} in
"${test_prefix}"|"${test_prefix}/"*|\
'${exec_prefix}'|'${exec_prefix}/'*)
t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
TARGET_SYSTEM_ROOT_DEFINE="$t"
;;
esac
], [
TARGET_SYSTEM_ROOT=
TARGET_SYSTEM_ROOT_DEFINE=
CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
])
AC_SUBST(TARGET_SYSTEM_ROOT)
AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
# 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)
# -------------------------
# Checks for other programs
# -------------------------
AC_PROG_MAKE_SET
# Find some useful tools
AC_PROG_AWK
# We need awk to run opts.sh (to create options.c and options.h).
# Bail out if it's missing.
case ${AWK} in
"") AC_MSG_ERROR([can't build without awk, bailing out]) ;;
esac
gcc_AC_PROG_LN
gcc_AC_PROG_LN_S
AC_PROG_RANLIB
gcc_AC_PROG_INSTALL
# See if cmp has --ignore-initial.
gcc_AC_PROG_CMP_IGNORE_INITIAL
# See if we have the mktemp command.
AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
# Do we have a single-tree copy of texinfo?
if test -f $srcdir/../texinfo/Makefile.in; then
MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
gcc_cv_prog_makeinfo_modern=yes
AC_MSG_RESULT([Using makeinfo from the unified source tree.])
else
# See if makeinfo has been installed and is modern enough
# that we can use it.
gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
[GNU texinfo.* \([0-9][0-9.]*\)],
[4.[2-9]*])
fi
if test $gcc_cv_prog_makeinfo_modern = no; then
AC_MSG_WARN([
*** Makeinfo is missing or too old.
*** Info documentation will not be built.])
BUILD_INFO=
else
BUILD_INFO=info AC_SUBST(BUILD_INFO)
fi
# Is pod2man recent enough to regenerate manpages?
AC_MSG_CHECKING([for recent Pod::Man])
if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
AC_MSG_RESULT(yes)
GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
else
AC_MSG_RESULT(no)
GENERATED_MANPAGES=
fi
# How about lex?
dnl Don't use AC_PROG_LEX; we insist on flex.
dnl LEXLIB is not useful in gcc.
if test -f $srcdir/../flex/skel.c; then
FLEX='$(objdir)/../flex/flex'
else
AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
fi
# Bison?
# The -L switch is so bison can find its skeleton file.
if test -f $srcdir/../bison/bison.simple; then
BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
else
AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
fi
# --------------------
# Checks for C headers
# --------------------
AC_MSG_CHECKING(for GNU C library)
AC_CACHE_VAL(gcc_cv_glibc,
[AC_TRY_COMPILE(
[#include <features.h>],[
#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
#error Not a GNU C library system
#endif],
[gcc_cv_glibc=yes],
gcc_cv_glibc=no)])
AC_MSG_RESULT($gcc_cv_glibc)
if test $gcc_cv_glibc = yes; then
AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
fi
# Need to reject headers which give warnings, so that the -Werror bootstrap
# works later. *sigh* This needs to come before all header checks.
AC_PROG_CPP_WERROR
AC_HEADER_STDC
AC_HEADER_TIME
gcc_AC_HEADER_STDBOOL
gcc_AC_HEADER_STRING
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(limits.h stddef.h string.h strings.h stdlib.h time.h \
fcntl.h unistd.h sys/file.h sys/time.h sys/mman.h \
sys/resource.h sys/param.h sys/times.h sys/stat.h \
direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h)
# Check for thread headers.
AC_CHECK_HEADER(thread.h, [have_thread_h=yes], [have_thread_h=])
AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
# These tests can't be done till we know if we have limits.h.
gcc_AC_C_CHAR_BIT
AC_C_BIGENDIAN_CROSS
# --------
# UNSORTED
# --------
# Stage specific cflags for build.
stage1_cflags=
case $build in
vax-*-*)
if test x$GCC = xyes
then
stage1_cflags="-Wa,-J"
else
stage1_cflags="-J"
fi
;;
powerpc-*-darwin*)
# The spiffy cpp-precomp chokes on some legitimate constructs in GCC
# sources; use -no-cpp-precomp to get to GNU cpp.
# Apple's GCC has bugs in designated initializer handling, so disable
# that too.
stage1_cflags="-no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
;;
esac
AC_SUBST(stage1_cflags)
# These libraries may be used by collect2.
# We may need a special search path to get them linked.
AC_CACHE_CHECK(for collect2 libraries, gcc_cv_collect2_libs,
[save_LIBS="$LIBS"
for libs in '' -lld -lmld \
'-L/usr/lib/cmplrs/cc2.11 -lmld' \
'-L/usr/lib/cmplrs/cc3.11 -lmld'
do
LIBS="$libs"
AC_TRY_LINK_FUNC(ldopen,
[gcc_cv_collect2_libs="$libs"; break])
done
LIBS="$save_LIBS"
test -z "$gcc_cv_collect2_libs" && gcc_cv_collect2_libs='none required'])
case $gcc_cv_collect2_libs in
"none required") ;;
*) COLLECT2_LIBS=$gcc_cv_collect2_libs ;;
esac
AC_SUBST(COLLECT2_LIBS)
# When building Ada code on Alpha, we need exc_resume which is usually in
# -lexc. So test for it.
save_LIBS="$LIBS"
LIBS=
AC_SEARCH_LIBS(exc_resume, exc)
GNAT_LIBEXC="$LIBS"
LIBS="$save_LIBS"
AC_SUBST(GNAT_LIBEXC)
# Some systems put ldexp and frexp in libm instead of libc; assume
# they're both in the same place. jcf-dump needs them.
save_LIBS="$LIBS"
LIBS=
AC_SEARCH_LIBS(ldexp, m)
LDEXP_LIB="$LIBS"
LIBS="$save_LIBS"
AC_SUBST(LDEXP_LIB)
# Use <inttypes.h> only if it exists,
# doesn't clash with <sys/types.h>, and declares intmax_t.
AC_MSG_CHECKING(for inttypes.h)
AC_CACHE_VAL(gcc_cv_header_inttypes_h,
[AC_TRY_COMPILE(
[#include <sys/types.h>
#include <inttypes.h>],
[intmax_t i = -1;],
[gcc_cv_header_inttypes_h=yes],
gcc_cv_header_inttypes_h=no)])
AC_MSG_RESULT($gcc_cv_header_inttypes_h)
if test $gcc_cv_header_inttypes_h = yes; then
AC_DEFINE(HAVE_INTTYPES_H, 1,
[Define if you have a working <inttypes.h> header file.])
fi
dnl Disabled until we have a complete test for buggy enum bitfields.
dnl gcc_AC_C_ENUM_BF_UNSIGNED
AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
setlocale)
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
[ AC_TRY_RUN([#include <stdlib.h>
int main()
{
mbstowcs(0, "", 0);
return 0;
}],
gcc_cv_func_mbstowcs_works=yes,
gcc_cv_func_mbstowcs_works=no,
gcc_cv_func_mbstowcs_works=yes)])
if test x$gcc_cv_func_mbstowcs_works = xyes; then
AC_DEFINE(HAVE_WORKING_MBSTOWCS, 1,
[Define this macro if mbstowcs does not crash when its
first argument is NULL.])
fi
fi
AC_CHECK_TYPE(ssize_t, int)
# Try to determine the array type of the second argument of getgroups
# for the target system (int or gid_t).
AC_TYPE_GETGROUPS
if test "${target}" = "${build}"; then
TARGET_GETGROUPS_T=$ac_cv_type_getgroups
else
case "${target}" in
# This condition may need some tweaking. It should include all
# targets where the array type of the second argument of getgroups
# is int and the type of gid_t is not equivalent to int.
*-*-sunos* | *-*-ultrix*)
TARGET_GETGROUPS_T=int
;;
*)
TARGET_GETGROUPS_T=gid_t
;;
esac
fi
AC_SUBST(TARGET_GETGROUPS_T)
gcc_AC_FUNC_PRINTF_PTR
gcc_AC_FUNC_MMAP_BLACKLIST
case "${host}" in
*-*-*vms*)
# Under VMS, vfork works very differently than on Unix. The standard test
# won't work, and it isn't easily adaptable. It makes more sense to
# just force it.
ac_cv_func_vfork_works=yes
;;
esac
AC_FUNC_VFORK
AM_ICONV
# Until we have in-tree GNU iconv:
LIBICONV_DEP=
AC_SUBST(LIBICONV_DEP)
AM_LC_MESSAGES
# We will need to find libiberty.h and ansidecl.h
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
fprintf_unlocked strstr errno snprintf vasprintf \
malloc realloc calloc free basename getopt clock, , ,[
#include "ansidecl.h"
#include "system.h"])
gcc_AC_CHECK_DECLS(getrlimit setrlimit getrusage, , ,[
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
])
AC_TRY_COMPILE([
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long],
[Define to \`long' if <sys/resource.h> doesn't define.])])
gcc_AC_CHECK_DECLS(ldgetname, , ,[
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_LDFCN_H
#include <ldfcn.h>
#endif
])
gcc_AC_CHECK_DECLS(times, , ,[
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
])
# More time-related stuff.
AC_CACHE_CHECK(for struct tms, ac_cv_struct_tms, [
AC_TRY_COMPILE([
#include "ansidecl.h"
#include "system.h"
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
], [struct tms tms;], ac_cv_struct_tms=yes, ac_cv_struct_tms=no)])
if test $ac_cv_struct_tms = yes; then
AC_DEFINE(HAVE_STRUCT_TMS, 1,
[Define if <sys/times.h> defines struct tms.])
fi
# use gcc_cv_* here because this doesn't match the behavior of AC_CHECK_TYPE.
# revisit after autoconf 2.50.
AC_CACHE_CHECK(for clock_t, gcc_cv_type_clock_t, [
AC_TRY_COMPILE([
#include "ansidecl.h"
#include "system.h"
], [clock_t x;], gcc_cv_type_clock_t=yes, gcc_cv_type_clock_t=no)])
if test $gcc_cv_type_clock_t = yes; then
AC_DEFINE(HAVE_CLOCK_T, 1,
[Define if <time.h> defines clock_t.])
fi
AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
[AC_TRY_COMPILE([
#include "ansidecl.h"
#include "system.h"
],
[if ((uchar *)0) return 0;
if (sizeof(uchar)) return 0;],
ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
if test $ac_cv_type_uchar = yes; then
AC_DEFINE(HAVE_UCHAR, 1,
[Define if <sys/types.h> defines \`uchar'.])
fi
# Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
CFLAGS="$saved_CFLAGS"
gcc_AC_INITFINI_ARRAY
# mkdir takes a single argument on some systems.
gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG
# File extensions
manext='.1'
objext='.o'
AC_SUBST(manext)
AC_SUBST(objext)
# With Setjmp/Longjmp based exception handling.
AC_ARG_ENABLE(sjlj-exceptions,
[ --enable-sjlj-exceptions
arrange to use setjmp/longjmp exception handling],
[sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
[Define 0/1 to force the choice for exception handling model.])])
if test x$host = x$target; then
AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
else
use_libunwind_default=no
fi
# Use libunwind based exception handling.
AC_ARG_ENABLE(libunwind-exceptions,
[ --enable-libunwind-exceptions force use libunwind for exceptions],
use_libunwind_exceptions=$enableval,
use_libunwind_exceptions=$use_libunwind_default)
if test x"$use_libunwind_exceptions" = xyes; then
AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
[Define if gcc should use -lunwind.])
fi
# --------------------------------------------------------
# Build, host, and target specific configuration fragments
# --------------------------------------------------------
# Collect build-machine-specific information.
. ${srcdir}/config.build
# Collect host-machine-specific information.
. ${srcdir}/config.host
target_gtfiles=
# Collect target-machine-specific information.
. ${srcdir}/config.gcc
extra_objs="${host_extra_objs} ${extra_objs}"
extra_gcc_objs="${host_extra_gcc_objs} ${extra_gcc_objs}"
# Default the target-machine variables that were not explicitly set.
if test x"$tm_file" = x
then tm_file=$cpu_type/$cpu_type.h; fi
if test x"$extra_headers" = x
then extra_headers=; fi
if test x$md_file = x
then md_file=$cpu_type/$cpu_type.md; fi
if test x$out_file = x
then out_file=$cpu_type/$cpu_type.c; fi
if test x"$tmake_file" = x
then tmake_file=$cpu_type/t-$cpu_type
fi
if test x"$dwarf2" = xyes
then tm_file="$tm_file tm-dwarf2.h"
fi
# Say what files are being used for the output code and MD file.
echo "Using \`$srcdir/config/$out_file' for machine-specific logic."
echo "Using \`$srcdir/config/$md_file' as machine description file."
# If any of the xm_file variables contain nonexistent files, warn
# about them and drop them.
bx=
for x in $build_xm_file; do
if test -f $srcdir/config/$x
then bx="$bx $x"
else AC_MSG_WARN($srcdir/config/$x does not exist.)
fi
done
build_xm_file="$bx"
hx=
for x in $host_xm_file; do
if test -f $srcdir/config/$x
then hx="$hx $x"
else AC_MSG_WARN($srcdir/config/$x does not exist.)
fi
done
host_xm_file="$hx"
tx=
for x in $xm_file; do
if test -f $srcdir/config/$x
then tx="$tx $x"
else AC_MSG_WARN($srcdir/config/$x does not exist.)
fi
done
xm_file="$tx"
count=a
for f in $tm_file; do
count=${count}x
done
if test $count = ax; then
echo "Using \`$srcdir/config/$tm_file' as target machine macro file."
else
echo "Using the following target machine macro files:"
for f in $tm_file; do
echo " $srcdir/config/$f"
done
fi
if test x$need_64bit_hwint = xyes; then
AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1,
[Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
fi
count=a
for f in $host_xm_file; do
count=${count}x
done
if test $count = a; then
:
elif test $count = ax; then
echo "Using \`$srcdir/config/$host_xm_file' as host machine macro file."
else
echo "Using the following host machine macro files:"
for f in $host_xm_file; do
echo " $srcdir/config/$f"
done
fi
echo "Using ${out_host_hook_obj} for host machine hooks."
if test "$host_xm_file" != "$build_xm_file"; then
count=a
for f in $build_xm_file; do
count=${count}x
done
if test $count = a; then
:
elif test $count = ax; then
echo "Using \`$srcdir/config/$build_xm_file' as build machine macro file."
else
echo "Using the following build machine macro files:"
for f in $build_xm_file; do
echo " $srcdir/config/$f"
done
fi
fi
# Check if a valid thread package
case ${enable_threads_flag} in
"" | no)
# No threads
target_thread_file='single'
;;
yes)
# default
target_thread_file='single'
;;
aix | dce | gnat | irix | posix | rtems | \
single | solaris | vxworks | win32 )
target_thread_file=${enable_threads_flag}
;;
*)
echo "${enable_threads_flag} is an unknown thread package" 1>&2
exit 1
;;
esac
if test x${thread_file} = x; then
# No thread file set by target-specific clauses in config.gcc,
# so use file chosen by default logic above
thread_file=${target_thread_file}
fi
if test x$enable___cxa_atexit = xyes || \
test x$enable___cxa_atexit = x -a x$default_use_cxa_atexit = xyes; then
AC_CHECK_FUNC(__cxa_atexit,
[AC_DEFINE(DEFAULT_USE_CXA_ATEXIT, 1,
[Define if you want to use __cxa_atexit, rather than atexit, to
register C++ destructors for local statics and global objects.
This is essential for fully standards-compliant handling of
destructors, but requires __cxa_atexit in libc.])],
echo "__cxa_atexit can't be enabled on this target")
fi
# Look for a file containing extra machine modes.
if test -n "$extra_modes" && test -f $srcdir/config/$extra_modes; then
extra_modes_file='$(srcdir)'/config/${extra_modes}
AC_SUBST(extra_modes_file)
AC_DEFINE_UNQUOTED(EXTRA_MODES_FILE, "config/$extra_modes",
[Define to the name of a file containing a list of extra machine modes
for this architecture.])
fi
# auto-host.h is the file containing items generated by autoconf and is
# the first file included by config.h.
# If host=build, it is correct to have bconfig include auto-host.h
# as well. If host!=build, we are in error and need to do more
# work to find out the build config parameters.
if test x$host = x$build
then
build_auto=auto-host.h
FORBUILD=..
else
# We create a subdir, then run autoconf in the subdir.
# To prevent recursion we set host and build for the new
# invocation of configure to the build for this invocation
# of configure.
tempdir=build.$$
rm -rf $tempdir
mkdir $tempdir
cd $tempdir
case ${srcdir} in
/* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
*) realsrcdir=../${srcdir};;
esac
saved_CFLAGS="${CFLAGS}"
CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
${realsrcdir}/configure \
--target=$target_alias --host=$build_alias --build=$build_alias
CFLAGS="${saved_CFLAGS}"
# We just finished tests for the build machine, so rename
# the file auto-build.h in the gcc directory.
mv auto-host.h ../auto-build.h
cd ..
rm -rf $tempdir
build_auto=auto-build.h
FORBUILD=../${build_subdir}
fi
AC_SUBST(FORBUILD)
tm_file="${tm_file} defaults.h"
tm_p_file="${tm_p_file} tm-preds.h"
host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
# We don't want ansidecl.h in target files, write code there in ISO/GNU C.
# put this back in temporarily.
xm_file="ansidecl.h ${xm_file}"
# --------
# UNSORTED
# --------
# Get the version trigger filename from the toplevel
if test "${with_gcc_version_trigger+set}" = set; then
gcc_version_trigger=$with_gcc_version_trigger
else
gcc_version_trigger=${srcdir}/version.c
fi
changequote(,)dnl
gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*"\([^"]*\)".*/\1/'`
gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
# Compile in configure arguments.
if test -f configargs.h ; then
# Being re-configured.
gcc_config_arguments=`grep configuration_arguments configargs.h | sed -e 's/.*"\([^"]*\)".*/\1/'`
gcc_config_arguments="$gcc_config_arguments : (reconfigured) $TOPLEVEL_CONFIGURE_ARGUMENTS"
else
gcc_config_arguments="$TOPLEVEL_CONFIGURE_ARGUMENTS"
fi
# Double all backslashes and backslash all quotes to turn
# gcc_config_arguments into a C string.
sed -e 's/\\/\\\\/g; s/"/\\"/g' <<EOF >conftest.out
$gcc_config_arguments
EOF
gcc_config_arguments_str=`cat conftest.out`
rm -f conftest.out
cat > configargs.h <<EOF
/* Generated automatically. */
static const char configuration_arguments[] = "$gcc_config_arguments_str";
static const char thread_model[] = "$thread_file";
static const struct {
const char *name, *value;
} configure_default_options[] = $configure_default_options;
EOF
changequote([,])dnl
# Internationalization
PACKAGE=gcc
VERSION="$gcc_version"
AC_SUBST(PACKAGE)
AC_SUBST(VERSION)
ZW_GNU_GETTEXT_SISTER_DIR
# If LIBINTL contains LIBICONV, then clear LIBICONV so we don't get
# -liconv on the link line twice.
case "$LIBINTL" in *$LIBICONV*)
LIBICONV= ;;
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],,)
case $host_os in
win32 | pe | cygwin* | mingw32* | uwin*)
AC_MSG_CHECKING(whether windows registry support is requested)
if test "x$enable_win32_registry" != xno; then
AC_DEFINE(ENABLE_WIN32_REGISTRY, 1,
[Define to 1 if installation paths should be looked up in Windows32
Registry. Ignored on non windows32 hosts.])
AC_MSG_RESULT(yes)
AC_SEARCH_LIBS(RegOpenKeyExA, advapi32)
else
AC_MSG_RESULT(no)
fi
# Check if user specified a different registry key.
case "x${enable_win32_registry}" in
x | xyes)
# default.
gcc_cv_win32_registry_key="$VERSION"
;;
xno)
# no registry lookup.
gcc_cv_win32_registry_key=''
;;
*)
# user-specified key.
gcc_cv_win32_registry_key="$enable_win32_registry"
;;
esac
if test "x$enable_win32_registry" != xno; then
AC_MSG_CHECKING(registry key on windows hosts)
AC_DEFINE_UNQUOTED(WIN32_REGISTRY_KEY, "$gcc_cv_win32_registry_key",
[Define to be the last portion of registry key on windows hosts.])
AC_MSG_RESULT($gcc_cv_win32_registry_key)
fi
;;
esac
# Get an absolute path to the GCC top-level source directory
holddir=`${PWDCMD-pwd}`
cd $srcdir
topdir=`${PWDCMD-pwd}`
cd $holddir
# Conditionalize the makefile for this host machine.
xmake_file=
for f in ${host_xmake_file}
do
if test -f ${srcdir}/config/$f
then
xmake_file="${xmake_file} \$(srcdir)/config/$f"
fi
done
# Conditionalize the makefile for this target machine.
tmake_file_=
for f in ${tmake_file}
do
if test -f ${srcdir}/config/$f
then
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
fi
done
tmake_file="${tmake_file_}"
symbolic_link='ln -s'
# If the host doesn't support symlinks, modify CC in
# FLAGS_TO_PASS so CC="stage1/xgcc -Bstage1/" works.
# Otherwise, we can use "CC=$(CC)".
rm -f symtest.tem
if $symbolic_link $srcdir/gcc.c symtest.tem 2>/dev/null
then
cc_set_by_configure="\$(CC)"
quoted_cc_set_by_configure="\$(CC)"
stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
quoted_stage_prefix_set_by_configure="\$(STAGE_PREFIX)"
else
rm -f symtest.tem
if cp -p $srcdir/gcc.c symtest.tem 2>/dev/null
then
symbolic_link="cp -p"
else
symbolic_link="cp"
fi
cc_set_by_configure="\`case '\$(CC)' in stage*) echo '\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\$(CC)';; esac\`"
quoted_cc_set_by_configure="\\\`case '\\\$(CC)' in stage*) echo '\\\$(CC)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(CC)';; esac\\\`"
stage_prefix_set_by_configure="\`case '\$(STAGE_PREFIX)' in stage*) echo '\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\$(STAGE_PREFIX)';; esac\`"
quoted_stage_prefix_set_by_configure="\\\`case '\\\$(STAGE_PREFIX)' in stage*) echo '\\\$(STAGE_PREFIX)' | sed -e 's|stage|../stage|g';; *) echo '\\\$(STAGE_PREFIX)';; esac\\\`"
fi
rm -f symtest.tem
out_object_file=`basename $out_file .c`.o
tm_file_list=
tm_include_list=
for f in $tm_file; do
case $f in
defaults.h )
tm_file_list="${tm_file_list} \$(srcdir)/$f"
tm_include_list="${tm_include_list} $f"
;;
* )
tm_file_list="${tm_file_list} \$(srcdir)/config/$f"
tm_include_list="${tm_include_list} config/$f"
;;
esac
done
tm_p_file_list=
tm_p_include_list=
for f in $tm_p_file; do
case $f in
tm-preds.h )
tm_p_file_list="${tm_p_file_list} $f"
tm_p_include_list="${tm_p_include_list} $f"
;;
* )
tm_p_file_list="${tm_p_file_list} \$(srcdir)/config/$f"
tm_p_include_list="${tm_p_include_list} config/$f"
esac
done
xm_file_list=
xm_include_list=
for f in $xm_file; do
case $f in
ansidecl.h )
xm_file_list="${xm_file_list} \$(srcdir)/../include/$f"
xm_include_list="${xm_include_list} $f"
;;
auto-host.h )
xm_file_list="${xm_file_list} $f"
xm_include_list="${xm_include_list} $f"
;;
* )
xm_file_list="${xm_file_list} \$(srcdir)/config/$f"
xm_include_list="${xm_include_list} config/$f"
;;
esac
done
host_xm_file_list=
host_xm_include_list=
for f in $host_xm_file; do
case $f in
ansidecl.h )
host_xm_file_list="${host_xm_file_list} \$(srcdir)/../include/$f"
host_xm_include_list="${host_xm_include_list} $f"
;;
auto-host.h )
host_xm_file_list="${host_xm_file_list} $f"
host_xm_include_list="${host_xm_include_list} $f"
;;
* )
host_xm_file_list="${host_xm_file_list} \$(srcdir)/config/$f"
host_xm_include_list="${host_xm_include_list} config/$f"
;;
esac
done
build_xm_file_list=
for f in $build_xm_file; do
case $f in
ansidecl.h )
build_xm_file_list="${build_xm_file_list} \$(srcdir)/../include/$f"
build_xm_include_list="${build_xm_include_list} $f"
;;
auto-build.h | auto-host.h )
build_xm_file_list="${build_xm_file_list} $f"
build_xm_include_list="${build_xm_include_list} $f"
;;
* )
build_xm_file_list="${build_xm_file_list} \$(srcdir)/config/$f"
build_xm_include_list="${build_xm_include_list} config/$f"
;;
esac
done
# Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
# Also use all.cross instead of all.internal and adjust SYSTEM_HEADER_DIR.
CROSS= AC_SUBST(CROSS)
ALL=all.internal AC_SUBST(ALL)
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)' AC_SUBST(SYSTEM_HEADER_DIR)
if test x$host != x$target
then
CROSS="-DCROSS_COMPILE"
ALL=all.cross
SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
case "$host","$target" in
# Darwin crosses can use the host system's libraries and headers,
# because of the fat library support. Of course, it must be the
# same version of Darwin on both sides. Allow the user to
# just say --target=foo-darwin without a version number to mean
# "the version on this system".
*-*-darwin*,*-*-darwin*)
hostos=`echo $host | sed 's/.*-darwin/darwin/'`
targetos=`echo $target | sed 's/.*-darwin/darwin/'`
if test $hostos = $targetos -o $targetos = darwin ; then
CROSS=
SYSTEM_HEADER_DIR='$(NATIVE_SYSTEM_HEADER_DIR)'
with_headers=yes
fi
;;
i?86-*-*,x86_64-*-* \
| powerpc*-*-*,powerpc64*-*-*)
CROSS="$CROSS -DNATIVE_CROSS" ;;
esac
elif test "x$TARGET_SYSTEM_ROOT" != x; then
# This is just $(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)
SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
fi
# If this is a cross-compiler that does not
# have its own set of headers then define
# inhibit_libc
# If this is using newlib, without having the headers available now,
# then define inhibit_libc in LIBGCC2_CFLAGS.
# This prevents libgcc2 from containing any code which requires libc
# support.
inhibit_libc=
if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
test x$with_newlib = xyes ; } &&
{ test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
inhibit_libc=-Dinhibit_libc
fi
AC_SUBST(inhibit_libc)
# When building gcc with a cross-compiler, we need to adjust things so
# that the generator programs are still built with the native compiler.
# Also, we cannot run fixincludes or fix-header.
# These are the normal (build=host) settings:
BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
# Possibly disable fixproto, on a per-target basis.
case ${use_fixproto} in
no)
STMP_FIXPROTO=
;;
yes)
STMP_FIXPROTO=stmp-fixproto
;;
esac
AC_SUBST(STMP_FIXPROTO)
# And these apply if build != host, or we are generating coverage data
if test x$build != x$host || test "x$coverage_flags" != x
then
BUILD_PREFIX=build-
BUILD_PREFIX_1=build-
BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
if test "x$TARGET_SYSTEM_ROOT" = x; then
STMP_FIXINC=
STMP_FIXPROTO=
fi
fi
# Expand extra_headers to include complete path.
# This substitutes for lots of t-* files.
extra_headers_list=
# Prepend $(srcdir)/config/${cpu_type}/ to every entry in extra_headers.
for file in ${extra_headers} ; do
extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
done
# Add a definition of USE_COLLECT2 if system wants one.
case $use_collect2 in
no) use_collect2= ;;
"") ;;
*)
host_xm_defines="${host_xm_defines} USE_COLLECT2"
xm_defines="${xm_defines} USE_COLLECT2"
;;
esac
# Identify the assembler which will work hand-in-glove with the newly
# built GCC, so that we can examine its features. This is the assembler
# which will be driven by the driver program.
#
# If build != host, and we aren't building gas in-tree, we identify a
# build->target assembler and hope that it will have the same features
# as the host->target assembler we'll be using.
AC_MSG_CHECKING(what assembler to use)
in_tree_gas=no
gcc_cv_as=
gcc_cv_gas_major_version=
gcc_cv_gas_minor_version=
gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
if test -x "$DEFAULT_ASSEMBLER"; then
gcc_cv_as="$DEFAULT_ASSEMBLER"
elif test -x "$AS"; then
gcc_cv_as="$AS"
elif test -x as$host_exeext; then
# Build using assembler in the current directory.
gcc_cv_as=./as$host_exeext
elif test -f $gcc_cv_as_gas_srcdir/configure.in \
&& test -f ../gas/Makefile; then
# Single tree build which includes gas.
in_tree_gas=yes
_gcc_COMPUTE_GAS_VERSION
rm -f as$host_exeext
$symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null
in_tree_gas_is_elf=no
if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
|| (grep 'obj_format = multi' ../gas/Makefile \
&& grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null
then
in_tree_gas_is_elf=yes
fi
fi
if test "x$gcc_cv_as" = x; then
# Search the same directories that the installed compiler will
# search. Else we may find the wrong assembler and lose. If we
# do not find a suitable assembler binary, then try the user's
# path.
#
# Also note we have to check MD_EXEC_PREFIX before checking the
# user's path. Unfortunately, there is no good way to get at the
# value of MD_EXEC_PREFIX here. So we do a brute force search
# through all the known MD_EXEC_PREFIX values. Ugh. This needs
# to be fixed as part of the make/configure rewrite too.
if test "x$exec_prefix" = xNONE; then
if test "x$prefix" = xNONE; then
test_prefix=/usr/local
else
test_prefix=$prefix
fi
else
test_prefix=$exec_prefix
fi
# If the loop below does not find an assembler, then use whatever
# one we can find in the users's path.
# user's path.
if test "x$program_prefix" != xNONE; then
gcc_cv_as=${program_prefix}as$host_exeext
else
gcc_cv_as=`echo as | sed ${program_transform_name}`$host_exeext
fi
test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
$test_prefix/libexec/gcc/$target_noncanonical \
/usr/lib/gcc/$target_noncanonical/$gcc_version \
/usr/lib/gcc/$target_noncanonical \
$test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
$test_prefix/$target_noncanonical/bin"
if test x$host = x$target; then
test_dirs="$test_dirs \
/usr/libexec \
/usr/ccs/gcc \
/usr/ccs/bin \
/udk/usr/ccs/bin \
/bsd43/usr/lib/cmplrs/cc \
/usr/cross64/usr/bin \
/usr/lib/cmplrs/cc \
/sysv/usr/lib/cmplrs/cc \
/svr4/usr/lib/cmplrs/cc \
/usr/bin"
fi
for dir in $test_dirs; do
if test -x $dir/as$host_exeext; then
gcc_cv_as=$dir/as$host_exeext
break;
fi
done
fi
case $in_tree_gas in
yes)
AC_MSG_RESULT("newly built gas")
;;
no)
AC_MSG_RESULT($gcc_cv_as)
;;
esac
# Identify the linker which will work hand-in-glove with the newly
# built GCC, so that we can examine its features. This is the linker
# which will be driven by the driver program.
#
# If build != host, and we aren't building gas in-tree, we identify a
# build->target linker and hope that it will have the same features
# as the host->target linker we'll be using.
AC_MSG_CHECKING(what linker to use)
in_tree_ld=no
gcc_cv_ld=
gcc_cv_gld_major_version=
gcc_cv_gld_minor_version=
gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
if test -x "$DEFAULT_LINKER"; then
gcc_cv_ld="$DEFAULT_LINKER"
elif test -x "$LD"; then
gcc_cv_ld="$LD"
elif test -x collect-ld$host_exeext; then
# Build using linker in the current directory.
gcc_cv_ld=./collect-ld$host_exeext
elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
&& test -f ../ld/Makefile; then
# Single tree build which includes ld.
in_tree_ld=yes
in_tree_ld_is_elf=no
if (grep 'EMUL = .*elf' ../ld/Makefile \
|| grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; 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
changequote(,)dnl
gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
changequote([,])dnl
if test x$gcc_cv_gld_version != x; then
break
fi
done
changequote(,)dnl
gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
changequote([,])dnl
rm -f collect-ld$host_exeext
$symbolic_link ../ld/ld-new$host_exeext collect-ld$host_exeext \
2>/dev/null
fi
if test "x$gcc_cv_ld" = x; then
# Search the same directories that the installed compiler will
# search. Else we may find the wrong linker and lose. If we
# do not find a suitable linker binary, then try the user's
# path.
#
# Also note we have to check MD_EXEC_PREFIX before checking the
# user's path. Unfortunately, there is no good way to get at the
# value of MD_EXEC_PREFIX here. So we do a brute force search
# through all the known MD_EXEC_PREFIX values. Ugh. This needs
# to be fixed as part of the make/configure rewrite too.
if test "x$exec_prefix" = xNONE; then
if test "x$prefix" = xNONE; then
test_prefix=/usr/local
else
test_prefix=$prefix
fi
else
test_prefix=$exec_prefix
fi
# If the loop below does not find an linker, then use whatever
# one we can find in the users's path.
# user's path.
if test "x$program_prefix" != xNONE; then
gcc_cv_ld=${program_prefix}ld$host_exeext
else
gcc_cv_ld=`echo ld | sed ${program_transform_name}`$host_exeext
fi
test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
$test_prefix/libexec/gcc/$target_noncanonical \
/usr/lib/gcc/$target_noncanonical/$gcc_version \
/usr/lib/gcc/$target_noncanonical \
$test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
$test_prefix/$target_noncanonical/bin"
if test x$host = x$target; then
test_dirs="$test_dirs \
/usr/libexec \
/usr/ccs/gcc \
/usr/ccs/bin \
/udk/usr/ccs/bin \
/bsd43/usr/lib/cmplrs/cc \
/usr/cross64/usr/bin \
/usr/lib/cmplrs/cc \
/sysv/usr/lib/cmplrs/cc \
/svr4/usr/lib/cmplrs/cc \
/usr/bin"
fi
for dir in $test_dirs; do
if test -x $dir/ld$host_exeext; then
gcc_cv_ld=$dir/ld$host_exeext
break;
fi
done
fi
case $in_tree_ld in
yes)
AC_MSG_RESULT("newly built ld")
;;
no)
AC_MSG_RESULT($gcc_cv_ld)
;;
esac
# Figure out what nm we will be using.
gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
AC_MSG_CHECKING(what nm to use)
in_tree_nm=no
if test -x nm$host_exeext; then
gcc_cv_nm=./nm$host_exeext
elif test -f $gcc_cv_binutils_srcdir/configure.in \
&& test -f ../binutils/Makefile; then
# Single tree build which includes binutils.
in_tree_nm=yes
gcc_cv_nm=./nm$host_exeext
rm -f nm$host_exeext
$symbolic_link ../binutils/nm-new$host_exeext nm$host_exeext 2>/dev/null
elif test "x$program_prefix" != xNONE; then
gcc_cv_nm=${program_prefix}nm$host_exeext
else
gcc_cv_nm=`echo nm | sed ${program_transform_name}`$host_exeext
fi
case $in_tree_nm in
yes) AC_MSG_RESULT("newly built nm") ;;
no) AC_MSG_RESULT($gcc_cv_nm) ;;
esac
# Figure out what objdump we will be using.
AC_MSG_CHECKING(what objdump to use)
in_tree_objdump=no
if test -x objdump$host_exeext; then
gcc_cv_objdump=./objdump$host_exeext
elif test -f $gcc_cv_binutils_srcdir/configure.in \
&& test -f ../binutils/Makefile; then
# Single tree build which includes binutils.
in_tree_objdump=yes
gcc_cv_objdump=./objdump$host_exeext
rm -f objdump$host_exeext
$symbolic_link ../binutils/objdump$host_exeext \
objdump$host_exeext 2>/dev/null
elif test "x$program_prefix" != xNONE; then
gcc_cv_objdump=${program_prefix}objdump$host_exeext
else
gcc_cv_objdump=`echo objdump | \
sed ${program_transform_name}`$host_exeext
fi
case $in_tree_objdump in
yes) AC_MSG_RESULT("newly built objdump") ;;
no) AC_MSG_RESULT($gcc_cv_objdump) ;;
esac
# Figure out what assembler alignment features are present.
gcc_GAS_CHECK_FEATURE([.balign and .p2align], gcc_cv_as_balign_and_p2align,
[2,6,0],,
[.balign 4
.p2align 2],,
[AC_DEFINE(HAVE_GAS_BALIGN_AND_P2ALIGN, 1,
[Define if your assembler supports .balign and .p2align.])])
gcc_GAS_CHECK_FEATURE([.p2align with maximum skip], gcc_cv_as_max_skip_p2align,
[2,8,0],,
[.p2align 4,,7],,
[AC_DEFINE(HAVE_GAS_MAX_SKIP_P2ALIGN, 1,
[Define if your assembler supports specifying the maximum number
of bytes to skip when using the GAS .p2align command.])])
gcc_GAS_CHECK_FEATURE([working .subsection -1], gcc_cv_as_subsection_m1,
[elf,2,9,0],,
[conftest_label1: .word 0
.subsection -1
conftest_label2: .word 0
.previous],
[if test x$gcc_cv_nm != x; then
$gcc_cv_nm conftest.o | grep conftest_label1 > conftest.nm1
$gcc_cv_nm conftest.o | grep conftest_label2 | sed -e 's/label2/label1/' > conftest.nm2
if cmp conftest.nm1 conftest.nm2 > /dev/null 2>&1
then :
else gcc_cv_as_subsection_m1=yes
fi
rm -f conftest.nm1 conftest.nm2
fi],
[AC_DEFINE(HAVE_GAS_SUBSECTION_ORDERING, 1,
[Define if your assembler supports .subsection and .subsection -1 starts
emitting at the beginning of your section.])])
gcc_GAS_CHECK_FEATURE([.weak], gcc_cv_as_weak,
[2,2,0],,
[ .weak foobar],,
[AC_DEFINE(HAVE_GAS_WEAK, 1, [Define if your assembler supports .weak.])])
# .hidden needs to be supported in both the assembler and the linker,
# because GNU LD versions before 2.12.1 have buggy support for STV_HIDDEN.
# This is irritatingly difficult to feature test for; we have to check the
# date string after the version number. If we've got an in-tree
# ld, we don't know its patchlevel version, so we set the baseline at 2.13
# to be safe.
# The gcc_GAS_CHECK_FEATURE call just sets a cache variable.
gcc_GAS_CHECK_FEATURE([.hidden], gcc_cv_as_hidden,
[elf,2,13,0],,
[ .hidden foobar
foobar:])
AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
[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 $in_tree_ld_is_elf = yes; then
gcc_cv_ld_hidden=yes
fi
else
gcc_cv_ld_hidden=yes
ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
if echo "$ld_ver" | grep GNU > /dev/null; then
changequote(,)dnl
ld_vers=`echo $ld_ver | sed -n \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p' \
-e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[ ].*$,\1,p'`
ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
if test 0"$ld_date" -lt 20020404; then
if test -n "$ld_date"; then
# If there was date string, but was earlier than 2002-04-04, fail
gcc_cv_ld_hidden=no
elif test -z "$ld_vers"; then
# If there was no date string nor ld version number, something is wrong
gcc_cv_ld_hidden=no
else
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]*\.\([0-9]*\)'`
test -z "$ld_vers_patch" && ld_vers_patch=0
if test "$ld_vers_major" -lt 2; then
gcc_cv_ld_hidden=no
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 12; then
gcc_cv_ld_hidden="no"
elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -eq 12 -a "$ld_vers_patch" -eq 0; then
gcc_cv_ld_hidden=no
fi
fi
changequote([,])dnl
fi
else
case "${target}" in
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
*)
gcc_cv_ld_hidden=no
;;
esac
fi
fi])
libgcc_visibility=no
AC_SUBST(libgcc_visibility)
if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
libgcc_visibility=yes
AC_DEFINE(HAVE_GAS_HIDDEN, 1,
[Define if your assembler and linker support .hidden.])
fi
# Check if we have .[us]leb128, and support symbol arithmetic with it.
gcc_GAS_CHECK_FEATURE([.sleb128 and .uleb128], gcc_cv_as_leb128,
[elf,2,11,0],,
[ .data
.uleb128 L2 - L1
L1:
.uleb128 1280
.sleb128 -1010
L2:],
[# GAS versions before 2.11 do not support uleb128,
# despite appearing to.
# ??? There exists an elf-specific test that will crash
# the assembler. Perhaps it's better to figure out whether
# arbitrary sections are supported and try the test.
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
if echo "$as_ver" | grep GNU > /dev/null; then
changequote(,)dnl
as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
as_major=`echo $as_ver | sed 's/\..*//'`
as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
changequote([,])dnl
if test $as_major -eq 2 && test $as_minor -lt 11
then :
else gcc_cv_as_leb128=yes
fi
fi],
[AC_DEFINE(HAVE_AS_LEB128, 1,
[Define if your assembler supports .sleb128 and .uleb128.])])
# GAS versions up to and including 2.11.0 may mis-optimize
# .eh_frame data.
gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame,
[elf,2,12,0],,
[ .text
.LFB1:
.4byte 0
.L1:
.4byte 0
.LFE1:
.section .eh_frame,"aw",@progbits
__FRAME_BEGIN__:
.4byte .LECIE1-.LSCIE1
.LSCIE1:
.4byte 0x0
.byte 0x1
.ascii "z\0"
.byte 0x1
.byte 0x78
.byte 0x1a
.byte 0x0
.byte 0x4
.4byte 1
.p2align 1
.LECIE1:
.LSFDE1:
.4byte .LEFDE1-.LASFDE1
.LASFDE1:
.4byte .LASFDE1-__FRAME_BEGIN__
.4byte .LFB1
.4byte .LFE1-.LFB1
.byte 0x4
.4byte .LFE1-.LFB1
.byte 0x4
.4byte .L1-.LFB1
.LEFDE1:],
[ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@.
cat > conftest.lit <<EOF
0000 10000000 00000000 017a0001 781a0004 .........z..x...
0010 01000000 12000000 18000000 00000000 ................
0020 08000000 04080000 0044 .........D @&t@
EOF
cat > conftest.big <<EOF
0000 00000010 00000000 017a0001 781a0004 .........z..x...
0010 00000001 00000012 00000018 00000000 ................
0020 00000008 04000000 0844 .........D @&t@
EOF
# If the assembler didn't choke, and we can objdump,
# and we got the correct data, then succeed.
if test x$gcc_cv_objdump != x \
&& $gcc_cv_objdump -s -j .eh_frame conftest.o 2>/dev/null \
| tail -3 > conftest.got \
&& { cmp conftest.lit conftest.got > /dev/null 2>&1 \
|| cmp conftest.big conftest.got > /dev/null 2>&1; }
then
gcc_cv_as_eh_frame=yes
elif AC_TRY_COMMAND($gcc_cv_as -o conftest.o --traditional-format /dev/null); then
gcc_cv_as_eh_frame=buggy
else
# Uh oh, what do we do now?
gcc_cv_as_eh_frame=no
fi])
if test $gcc_cv_as_eh_frame = buggy; then
AC_DEFINE(USE_AS_TRADITIONAL_FORMAT, 1,
[Define if your assembler mis-optimizes .eh_frame data.])
fi
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
[elf,2,12,0], [--fatal-warnings],
[.section .rodata.str, "aMS", @progbits, 1])
AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
[`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
# Thread-local storage - the check is heavily parametrized.
conftest_s=
tls_first_major=
tls_first_minor=
tls_as_opt=
case "$target" in
changequote(,)dnl
alpha*-*-*)
conftest_s='
.section ".tdata","awT",@progbits
foo: .long 25
.text
ldq $27,__tls_get_addr($29) !literal!1
lda $16,foo($29) !tlsgd!1
jsr $26,($27),__tls_get_addr !lituse_tlsgd!1
ldq $27,__tls_get_addr($29) !literal!2
lda $16,foo($29) !tlsldm!2
jsr $26,($27),__tls_get_addr !lituse_tlsldm!2
ldq $1,foo($29) !gotdtprel
ldah $2,foo($29) !dtprelhi
lda $3,foo($2) !dtprello
lda $4,foo($29) !dtprel
ldq $1,foo($29) !gottprel
ldah $2,foo($29) !tprelhi
lda $3,foo($2) !tprello
lda $4,foo($29) !tprel'
tls_first_major=2
tls_first_minor=13
tls_as_opt=--fatal-warnings
;;
i[34567]86-*-*)
conftest_s='
.section ".tdata","awT",@progbits
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
;;
x86_64-*-*)
conftest_s='
.section ".tdata","awT",@progbits
foo: .long 25
.text
movq %fs:0, %rax
leaq foo@TLSGD(%rip), %rdi
leaq foo@TLSLD(%rip), %rdi
leaq foo@DTPOFF(%rax), %rdx
movq foo@GOTTPOFF(%rip), %rax
movq $foo@TPOFF, %rax'
tls_first_major=2
tls_first_minor=14
tls_as_opt=--fatal-warnings
;;
ia64-*-*)
conftest_s='
.section ".tdata","awT",@progbits
foo: data8 25
.text
addl r16 = @ltoff(@dtpmod(foo#)), gp
addl r17 = @ltoff(@dtprel(foo#)), gp
addl r18 = @ltoff(@tprel(foo#)), gp
addl r19 = @dtprel(foo#), gp
adds r21 = @dtprel(foo#), r13
movl r23 = @dtprel(foo#)
addl r20 = @tprel(foo#), gp
adds r22 = @tprel(foo#), r13
movl r24 = @tprel(foo#)'
tls_first_major=2
tls_first_minor=13
tls_as_opt=--fatal-warnings
;;
powerpc-*-*)
conftest_s='
.section ".tdata","awT",@progbits
.align 2
ld0: .space 4
ld1: .space 4
x1: .space 4
x2: .space 4
x3: .space 4
.text
addi 3,31,ld0@got@tlsgd
bl __tls_get_addr
addi 3,31,x1@got@tlsld
bl __tls_get_addr
addi 9,3,x1@dtprel
addis 9,3,x2@dtprel@ha
addi 9,9,x2@dtprel@l
lwz 9,x3@got@tprel(31)
add 9,9,x@tls
addi 9,2,x1@tprel
addis 9,2,x2@tprel@ha
addi 9,9,x2@tprel@l'
tls_first_major=2
tls_first_minor=14
tls_as_opt="-a32 --fatal-warnings"
;;
powerpc64-*-*)
conftest_s='
.section ".tdata","awT",@progbits
.align 3
ld0: .space 8
ld1: .space 8
x1: .space 8
x2: .space 8
x3: .space 8
.text
addi 3,2,ld0@got@tlsgd
bl .__tls_get_addr
nop
addi 3,2,ld1@toc
bl .__tls_get_addr
nop
addi 3,2,x1@got@tlsld
bl .__tls_get_addr
nop
addi 9,3,x1@dtprel
bl .__tls_get_addr
nop
addis 9,3,x2@dtprel@ha
addi 9,9,x2@dtprel@l
bl .__tls_get_addr
nop
ld 9,x3@got@dtprel(2)
add 9,9,3
bl .__tls_get_addr
nop'
tls_first_major=2
tls_first_minor=14
tls_as_opt="-a64 --fatal-warnings"
;;
s390-*-*)
conftest_s='
.section ".tdata","awT",@progbits
foo: .long 25
.text
.long foo@TLSGD
.long foo@TLSLDM
.long foo@DTPOFF
.long foo@NTPOFF
.long foo@GOTNTPOFF
.long foo@INDNTPOFF
l %r1,foo@GOTNTPOFF(%r12)
l %r1,0(%r1):tls_load:foo
bas %r14,0(%r1,%r13):tls_gdcall:foo
bas %r14,0(%r1,%r13):tls_ldcall:foo'
tls_first_major=2
tls_first_minor=14
tls_as_opt="-m31 --fatal-warnings"
;;
s390x-*-*)
conftest_s='
.section ".tdata","awT",@progbits
foo: .long 25
.text
.quad foo@TLSGD
.quad foo@TLSLDM
.quad foo@DTPOFF
.quad foo@NTPOFF
.quad foo@GOTNTPOFF
lg %r1,foo@GOTNTPOFF(%r12)
larl %r1,foo@INDNTPOFF
brasl %r14,__tls_get_offset@PLT:tls_gdcall:foo
brasl %r14,__tls_get_offset@PLT:tls_ldcall:foo'
tls_first_major=2
tls_first_minor=14
tls_as_opt="-m64 -Aesame --fatal-warnings"
;;
sh-*-* | sh[34]-*-*)
conftest_s='
.section ".tdata","awT",@progbits
foo: .long 25
.text
.long foo@TLSGD
.long foo@TLSLDM
.long foo@DTPOFF
.long foo@GOTTPOFF
.long foo@TPOFF'
tls_first_major=2
tls_first_minor=13
tls_as_opt=--fatal-warnings
;;
sparc*-*-*)
case "$target" in
sparc*-sun-solaris2.*)
on_solaris=yes
;;
*)
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'
tls_first_major=0
tls_first_minor=0
else
conftest_s='
.section ".tdata","awT",@progbits
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'
tls_first_major=2
tls_first_minor=14
tls_as_opt="-32 --fatal-warnings"
fi
;;
changequote([,])dnl
esac
if test -z "$tls_first_major"; then
: # If we don't have a check, assume no support.
else
gcc_GAS_CHECK_FEATURE(thread-local storage support, gcc_cv_as_tls,
[$tls_first_major,$tls_first_minor,0], [$tls_as_opt], [$conftest_s],,
[AC_DEFINE(HAVE_AS_TLS, 1,
[Define if your assembler supports thread-local storage.])])
fi
# Target-specific assembler checks.
case "$target" in
# All TARGET_ABI_OSF targets.
alpha*-*-osf* | alpha*-*-linux* | alpha*-*-*bsd*)
gcc_GAS_CHECK_FEATURE([explicit relocation support],
gcc_cv_as_alpha_explicit_relocs, [2,12,0],,
[ .set nomacro
.text
extbl $3, $2, $3 !lituse_bytoff!1
ldq $2, a($29) !literal!1
ldq $4, b($29) !literal!2
ldq_u $3, 0($2) !lituse_base!1
ldq $27, f($29) !literal!5
jsr $26, ($27), f !lituse_jsr!5
ldah $29, 0($26) !gpdisp!3
lda $0, c($29) !gprel
ldah $1, d($29) !gprelhigh
lda $1, d($1) !gprellow
lda $29, 0($29) !gpdisp!3],,
[AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
[Define if your assembler supports explicit relocations.])])
;;
cris-*-*)
gcc_GAS_CHECK_FEATURE([-no-mul-bug-abort option],
gcc_cv_as_cris_no_mul_bug,[2,15,91],
[-no-mul-bug-abort], [.text],,
[AC_DEFINE(HAVE_AS_NO_MUL_BUG_ABORT_OPTION, 1,
[Define if your assembler supports the -no-mul-bug-abort option.])])
;;
sparc*-*-*)
gcc_GAS_CHECK_FEATURE([.register], gcc_cv_as_sparc_register_op,,,
[.register %g2, #scratch],,
[AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
[Define if your assembler supports .register.])])
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
[-relax], [.text],,
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
[Define if your assembler supports -relax option.])])
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs],
gcc_cv_as_sparc_ua_pcrel,,
[-K PIC],
[.text
foo:
nop
.data
.align 4
.byte 0
.uaword %r_disp32(foo)],
[if test x$gcc_cv_ld != x \
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
gcc_cv_as_sparc_ua_pcrel=yes
fi
rm -f conftest],
[AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
[Define if your assembler and linker support unaligned PC relative relocs.])
gcc_GAS_CHECK_FEATURE([unaligned pcrel relocs against hidden symbols],
gcc_cv_as_sparc_ua_pcrel_hidden,,
[-K PIC],
[.data
.align 4
.byte 0x31
.uaword %r_disp32(foo)
.byte 0x32, 0x33, 0x34
.global foo
.hidden foo
foo:
.skip 4],
[if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
&& $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1 \
&& $gcc_cv_objdump -s -j .data conftest 2> /dev/null \
| grep ' 31000000 07323334' > /dev/null 2>&1; then
if $gcc_cv_objdump -R conftest 2> /dev/null \
| grep 'DISP32' > /dev/null 2>&1; then
:
else
gcc_cv_as_sparc_ua_pcrel_hidden=yes
fi
fi
rm -f conftest],
[AC_DEFINE(HAVE_AS_SPARC_UA_PCREL_HIDDEN, 1,
[Define if your assembler and linker support unaligned PC relative relocs against hidden symbols.])])
]) # unaligned pcrel relocs
gcc_GAS_CHECK_FEATURE([offsetable %lo()],
gcc_cv_as_sparc_offsetable_lo10,,
[-xarch=v9],
[.text
or %g1, %lo(ab) + 12, %g1
or %g1, %lo(ab + 12), %g1],
[if test x$gcc_cv_objdump != x \
&& $gcc_cv_objdump -s -j .text conftest.o 2> /dev/null \
| grep ' 82106000 82106000' > /dev/null 2>&1; then
gcc_cv_as_offsetable_lo10=yes
fi],
[AC_DEFINE(HAVE_AS_OFFSETABLE_LO10, 1,
[Define if your assembler supports offsetable %lo().])])
;;
changequote(,)dnl
i[34567]86-*-* | x86_64-*-*)
changequote([,])dnl
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
gcc_cv_as_ix86_filds_fists,
[2,9,0],, [filds mem; fists mem],,
[AC_DEFINE(HAVE_GAS_FILDS_FISTS, 1,
[Define if your assembler uses the new HImode fild and fist notation.])])
gcc_GAS_CHECK_FEATURE([cmov syntax],
gcc_cv_as_ix86_cmov_sun_syntax,,,
[cmovl.l %edx, %eax],,
[AC_DEFINE(HAVE_AS_IX86_CMOV_SUN_SYNTAX, 1,
[Define if your assembler supports the Sun syntax for cmov.])])
# 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],,
[ .text
.L0:
nop
.data
.long .L0@GOTOFF])
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'.])
;;
ia64*-*-*)
gcc_GAS_CHECK_FEATURE([ltoffx and ldxmov relocs],
gcc_cv_as_ia64_ltoffx_ldxmov_relocs, [2,14,0],,
[ .text
addl r15 = @ltoffx(x#), gp
;;
ld8.mov r16 = [[r15]], x#],,
[AC_DEFINE(HAVE_AS_LTOFFX_LDXMOV_RELOCS, 1,
[Define if your assembler supports ltoffx and ldxmov relocations.])])
;;
powerpc*-*-*)
case $target in
*-*-aix*) conftest_s=' .csect .text[[PR]]
mfcr 3,128';;
*-*-darwin*) conftest_s=' .text
mfcr r3,128';;
*) conftest_s=' .text
mfcr 3,128';;
esac
gcc_GAS_CHECK_FEATURE([mfcr field support],
gcc_cv_as_powerpc_mfcrf, [2,14,0],,
[$conftest_s],,
[AC_DEFINE(HAVE_AS_MFCRF, 1,
[Define if your assembler supports mfcr field.])])
;;
mips*-*-*)
gcc_GAS_CHECK_FEATURE([explicit relocation support],
gcc_cv_as_mips_explicit_relocs, [2,14,0],,
[ lw $4,%gp_rel(foo)($4)],,
[if test x$target_cpu_default = x
then target_cpu_default=MASK_EXPLICIT_RELOCS
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
fi])
;;
esac
# ??? Not all targets support dwarf2 debug_line, even within a version
# of gas. Moreover, we need to emit a valid instruction to trigger any
# info to the output file. So, as supported targets are added to gas 2.11,
# add some instruction here to (also) show we expect this might work.
# ??? Once 2.11 is released, probably need to add first known working
# version to the per-target configury.
case "$target" in
i?86*-*-* | mips*-*-* | alpha*-*-* | powerpc*-*-* | sparc*-*-* | m68*-*-* \
| x86_64*-*-* | hppa*-*-* | arm*-*-* | strongarm*-*-* | xscale*-*-* \
| xstormy16*-*-* | cris-*-* | xtensa-*-*)
insn="nop"
;;
ia64*-*-* | s390*-*-*)
insn="nop 0"
;;
mmix-*-*)
insn="swym 0"
;;
esac
if test x"$insn" != x; then
conftest_s="\
.file 1 \"conftest.s\"
.loc 1 3 0
$insn"
gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
gcc_cv_as_dwarf2_debug_line,
[elf,2,11,0],, [$conftest_s],
[# ??? This fails with non-gnu grep. Maybe use objdump?
if grep debug_line conftest.o > /dev/null 2>&1; then
gcc_cv_as_dwarf2_debug_line=yes
fi])
# The .debug_line file table must be in the exact order that
# we specified the files, since these indices are also used
# by DW_AT_decl_file. Approximate this test by testing if
# the assembler bitches if the same index is assigned twice.
gcc_GAS_CHECK_FEATURE([buggy dwarf2 .file directive],
gcc_cv_as_dwarf2_file_buggy,,,
[ .file 1 "foo.s"
.file 1 "bar.s"])
if test $gcc_cv_as_dwarf2_debug_line = yes \
&& test $gcc_cv_as_dwarf2_file_buggy = no; then
AC_DEFINE(HAVE_AS_DWARF2_DEBUG_LINE, 1,
[Define if your assembler supports dwarf2 .file/.loc directives,
and preserves file table indices exactly as given.])
fi
gcc_GAS_CHECK_FEATURE([--gdwarf2 option],
gcc_cv_as_gdwarf2_flag,
[elf,2,11,0], [--gdwarf2], [$insn],,
[AC_DEFINE(HAVE_AS_GDWARF2_DEBUG_FLAG, 1,
[Define if your assembler supports the --gdwarf2 option.])])
gcc_GAS_CHECK_FEATURE([--gstabs option],
gcc_cv_as_gstabs_flag,
[elf,2,11,0], [--gstabs], [$insn],
[# The native Solaris 9/Intel assembler doesn't understand --gstabs
# and warns about it, but still exits successfully. So check for
# this.
if AC_TRY_COMMAND([$gcc_cv_as --gstabs -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null])
then :
else gcc_cv_as_gstabs_flag=yes
fi],
[AC_DEFINE(HAVE_AS_GSTABS_DEBUG_FLAG, 1,
[Define if your assembler supports the --gstabs option.])])
fi
AC_MSG_CHECKING(linker read-only and read-write section mixing)
gcc_cv_ld_ro_rw_mix=unknown
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 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_ro_rw_mix=read-write
fi
elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
echo '.section myfoosect, "a"' > conftest1.s
echo '.section myfoosect, "aw"' > conftest2.s
echo '.byte 1' >> conftest2.s
echo '.section myfoosect, "a"' > conftest3.s
echo '.byte 0' >> conftest3.s
if $gcc_cv_as -o conftest1.o conftest1.s > /dev/null 2>&1 \
&& $gcc_cv_as -o conftest2.o conftest2.s > /dev/null 2>&1 \
&& $gcc_cv_as -o conftest3.o conftest3.s > /dev/null 2>&1 \
&& $gcc_cv_ld -shared -o conftest1.so conftest1.o \
conftest2.o conftest3.o > /dev/null 2>&1; then
gcc_cv_ld_ro_rw_mix=`$gcc_cv_objdump -h conftest1.so \
| sed -e '/myfoosect/!d' -e N`
if echo "$gcc_cv_ld_ro_rw_mix" | grep CONTENTS > /dev/null; then
if echo "$gcc_cv_ld_ro_rw_mix" | grep READONLY > /dev/null; then
gcc_cv_ld_ro_rw_mix=read-only
else
gcc_cv_ld_ro_rw_mix=read-write
fi
fi
fi
changequote(,)dnl
rm -f conftest.* conftest[123].*
changequote([,])dnl
fi
if test x$gcc_cv_ld_ro_rw_mix = xread-write; then
AC_DEFINE(HAVE_LD_RO_RW_SECTION_MIXING, 1,
[Define if your linker links a mix of read-only
and read-write sections into a read-write section.])
fi
AC_MSG_RESULT($gcc_cv_ld_ro_rw_mix)
AC_MSG_CHECKING(linker PT_GNU_EH_FRAME support)
gcc_cv_ld_eh_frame_hdr=no
if test $in_tree_ld = yes ; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 12 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_eh_frame_hdr=yes
fi
elif test x$gcc_cv_ld != x; then
# Check if linker supports --eh-frame-hdr option
if $gcc_cv_ld --help 2>/dev/null | grep eh-frame-hdr > /dev/null; then
gcc_cv_ld_eh_frame_hdr=yes
fi
fi
if test x"$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.])
fi
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
AC_MSG_CHECKING(linker position independent executable support)
gcc_cv_ld_pie=no
if test $in_tree_ld = yes ; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_pie=yes
fi
elif test x$gcc_cv_ld != x; then
# Check if linker supports -pie option
if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
gcc_cv_ld_pie=yes
fi
fi
if test x"$gcc_cv_ld_pie" = xyes; then
AC_DEFINE(HAVE_LD_PIE, 1,
[Define if your linker supports -pie option.])
fi
AC_MSG_RESULT($gcc_cv_ld_pie)
case "$target" in
*-*-linux*)
AC_CACHE_CHECK(linker --as-needed support,
gcc_cv_ld_as_needed,
[gcc_cv_ld_as_needed=no
if test $in_tree_ld = yes ; then
if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 \
&& test $in_tree_ld_is_elf = yes; then
gcc_cv_ld_as_needed=yes
fi
elif test x$gcc_cv_ld != x; then
# Check if linker supports --as-needed and --no-as-needed options
if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
gcc_cv_ld_as_needed=yes
fi
fi
])
if test x"$gcc_cv_ld_as_needed" = xyes; then
AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
[Define if your linker supports --as-needed and --no-as-needed options.])
fi
;;
esac
if test x$with_sysroot = x && test x$host = x$target \
&& test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
[Define to PREFIX/include if cpp should also search that directory.])
fi
# Figure out what language subdirectories are present.
# Look if the user specified --enable-languages="..."; if not, use
# the environment variable $LANGUAGES if defined. $LANGUAGES might
# go away some day.
# NB: embedded tabs in this IF block -- do not untabify
if test x"${enable_languages+set}" != xset; then
if test x"${LANGUAGES+set}" = xset; then
enable_languages="${LANGUAGES}"
AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
else
enable_languages=all
fi
else
if test x"${enable_languages}" = x \
|| test x"${enable_languages}" = xyes;
then
AC_MSG_ERROR([--enable-languages needs at least one language argument])
fi
fi
enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
# First scan to see if an enabled language requires some other language.
# We assume that a given config-lang.in will list all the language
# front ends it requires, even if some are required indirectly.
for lang in ${srcdir}/*/config-lang.in
do
case $lang in
# The odd quoting in the next line works around
# an apparent bug in bash 1.12 on linux.
changequote(,)dnl
${srcdir}/[*]/config-lang.in)
;;
*)
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
for other in $this_lang_requires
do
case ,${enable_languages}, in
*,$other,*)
;;
*,all,*)
;;
*,$lang_alias,*)
enable_languages="$enable_languages,$other"
;;
esac
done
;;
changequote([,])dnl
esac
done
expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
found_languages=
subdirs=
for lang in ${srcdir}/*/config-lang.in
do
case $lang in
# The odd quoting in the next line works around
# an apparent bug in bash 1.12 on linux.
changequote(,)dnl
${srcdir}/[*]/config-lang.in) ;;
*)
lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
if test "x$lang_alias" = x
then
echo "$lang doesn't set \$language." 1>&2
exit 1
fi
case ${build_by_default},${enable_languages}, in
*,$lang_alias,*) add_this_lang=yes ;;
no,*) add_this_lang=no ;;
*,all,*) add_this_lang=yes ;;
*) add_this_lang=no ;;
esac
found_languages="${found_languages} ${lang_alias}"
if test x"${add_this_lang}" = xyes; then
case $lang in
${srcdir}/ada/config-lang.in)
if test x$have_gnat = xyes ; then
subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
fi
;;
*)
subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
;;
esac
fi
;;
changequote([,])dnl
esac
done
missing_languages=
for expected_language in ${expected_languages} ..
do
if test "${expected_language}" != ..; then
missing_language="${expected_language}"
if test "${expected_language}" = "c" \
|| test "${expected_language}" = "all"; then
missing_language=
fi
for found_language in ${found_languages} ..
do
if test "${found_language}" != ..; then
if test "${expected_language}" = "${found_language}"; then
missing_language=
fi
fi
done
if test "x${missing_language}" != x; then
missing_languages="${missing_languages} ${missing_language}"
fi
fi
done
if test "x$missing_languages" != x; then
AC_MSG_ERROR([
The following requested languages were not found:${missing_languages}
The following languages were available: c${found_languages}])
fi
# Make gthr-default.h if we have a thread file.
gthread_flags=
if test $thread_file != single; then
rm -f gthr-default.h
echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h
gthread_flags=-DHAVE_GTHR_DEFAULT
fi
AC_SUBST(gthread_flags)
# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
[ --with-gc={simple,page,zone} choose the garbage collection mechanism to use
with the compiler],
[case "$withval" in
simple | page | zone)
GGC=ggc-$withval
;;
*)
AC_MSG_ERROR([$withval is an invalid option to --with-gc])
;;
esac],
[GGC=ggc-page])
AC_SUBST(GGC)
echo "Using $GGC for garbage collection."
# Use the system's zlib library.
zlibdir=-L../zlib
zlibinc="-I\$(srcdir)/../zlib"
AC_ARG_WITH(system-zlib,
[ --with-system-zlib use installed libz],
zlibdir=
zlibinc=
)
AC_SUBST(zlibdir)
AC_SUBST(zlibinc)
dnl Very limited version of automake's enable-maintainer-mode
AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
dnl maintainer-mode is disabled by default
AC_ARG_ENABLE(maintainer-mode,
[ --enable-maintainer-mode
enable make rules and dependencies not useful
(and sometimes confusing) to the casual installer],
maintainer_mode=$enableval,
maintainer_mode=no)
AC_MSG_RESULT($maintainer_mode)
if test "$maintainer_mode" = "yes"; then
MAINT=''
else
MAINT='#'
fi
AC_SUBST(MAINT)dnl
# Make empty files to contain the specs and options for each language.
# Then add #include lines to for a compiler that has specs and/or options.
lang_opt_files=
lang_specs_files=
lang_tree_files=
for subdir in . $subdirs
do
if test -f $srcdir/$subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
fi
if test -f $srcdir/$subdir/lang-specs.h; then
lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
fi
if test -f $srcdir/$subdir/$subdir-tree.def; then
lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
fi
done
# These (without "all_") are set in each config-lang.in.
# `language' must be a single word so is spelled singularly.
all_languages=
all_boot_languages=
all_compilers=
all_stagestuff=
all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
# List of language makefile fragments.
all_lang_makefrags=
# List of language subdirectory makefiles. Deprecated.
all_lang_makefiles=
# Files for gengtype
all_gtfiles="$target_gtfiles"
# Files for gengtype with language
all_gtfiles_files_langs=
all_gtfiles_files_files=
# Add the language fragments.
# Languages are added via two mechanisms. Some information must be
# recorded in makefile variables, these are defined in config-lang.in.
# We accumulate them and plug them into the main Makefile.
# The other mechanism is a set of hooks for each of the main targets
# like `clean', `install', etc.
language_hooks="Make-hooks"
for s in $subdirs
do
language=
boot_language=
compilers=
stagestuff=
outputs=
gtfiles=
. ${srcdir}/$s/config-lang.in
if test "x$language" = x
then
echo "${srcdir}/$s/config-lang.in doesn't set \$language." 1>&2
exit 1
fi
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$s/Make-lang.in"
if test -f ${srcdir}/$s/Makefile.in
then all_lang_makefiles="$s/Makefile"
fi
all_languages="$all_languages $language"
if test "x$boot_language" = xyes
then
all_boot_languages="$all_boot_languages $language"
fi
all_compilers="$all_compilers $compilers"
all_stagestuff="$all_stagestuff $stagestuff"
all_outputs="$all_outputs $outputs"
all_gtfiles="$all_gtfiles $gtfiles"
for f in $gtfiles
do
all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
done
done
# Pick up gtfiles for c
gtfiles=
s="c"
. ${srcdir}/c-config-lang.in
all_gtfiles="$all_gtfiles $gtfiles"
for f in $gtfiles
do
all_gtfiles_files_langs="$all_gtfiles_files_langs ${s} "
all_gtfiles_files_files="$all_gtfiles_files_files ${f} "
done
check_languages=
for language in $all_languages
do
check_languages="$check_languages check-$language"
done
# We link each language in with a set of hooks, reached indirectly via
# lang.${target}.
rm -f Make-hooks
touch Make-hooks
target_list="all.build all.cross start.encap rest.encap tags \
install-normal install-common install-man \
uninstall info man srcextra srcman srcinfo \
mostlyclean clean distclean maintainer-clean \
stage1 stage2 stage3 stage4 stageprofile stagefeedback"
for t in $target_list
do
x=
for lang in $all_languages
do
x="$x $lang.$t"
done
echo "lang.$t: $x" >> Make-hooks
done
# Create .gdbinit.
echo "dir ." > .gdbinit
echo "dir ${srcdir}" >> .gdbinit
if test x$gdb_needs_out_file_path = xyes
then
echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
fi
if test "x$subdirs" != x; then
for s in $subdirs
do
echo "dir ${srcdir}/$s" >> .gdbinit
done
fi
echo "source ${srcdir}/gdbinit.in" >> .gdbinit
# If $(exec_prefix) exists and is not the same as $(prefix), then compute an
# absolute path for gcc_tooldir based on inserting the number of up-directory
# movements required to get from $(exec_prefix) to $(prefix) into the basic
# $(libsubdir)/@(unlibsubdir) based path.
# Don't set gcc_tooldir to tooldir since that's only passed in by the toplevel
# make and thus we'd get different behavior depending on where we built the
# sources.
if test x$exec_prefix = xNONE -o x$exec_prefix = x$prefix; then
gcc_tooldir='$(libsubdir)/$(unlibsubdir)/../$(target_noncanonical)'
else
changequote(<<, >>)dnl
# An explanation of the sed strings:
# -e 's|^\$(prefix)||' matches and eliminates 'prefix' from 'exec_prefix'
# -e 's|/$||' match a trailing forward slash and eliminates it
# -e 's|^[^/]|/|' forces the string to start with a forward slash (*)
# -e 's|/[^/]*|../|g' replaces each occurrence of /<directory> with ../
#
# (*) Note this pattern overwrites the first character of the string
# with a forward slash if one is not already present. This is not a
# problem because the exact names of the sub-directories concerned is
# unimportant, just the number of them matters.
#
# The practical upshot of these patterns is like this:
#
# prefix exec_prefix result
# ------ ----------- ------
# /foo /foo/bar ../
# /foo/ /foo/bar ../
# /foo /foo/bar/ ../
# /foo/ /foo/bar/ ../
# /foo /foo/bar/ugg ../../
#
dollar='$$'
gcc_tooldir="\$(libsubdir)/\$(unlibsubdir)/\`echo \$(exec_prefix) | sed -e 's|^\$(prefix)||' -e 's|/\$(dollar)||' -e 's|^[^/]|/|' -e 's|/[^/]*|../|g'\`\$(target_noncanonical)"
changequote([, ])dnl
fi
AC_SUBST(gcc_tooldir)
AC_SUBST(dollar)
# 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])
AC_ARG_WITH(slibdir,
[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]],
slibdir="$with_slibdir",
if test "${enable_version_specific_runtime_libs+set}" = set; then
slibdir='$(libsubdir)'
elif test "$host" != "$target"; then
slibdir='$(build_tooldir)/lib'
else
slibdir='$(libdir)'
fi)
AC_SUBST(slibdir)
objdir=`${PWDCMD-pwd}`
AC_SUBST(objdir)
# Substitute configuration variables
AC_SUBST(subdirs)
AC_SUBST(srcdir)
AC_SUBST(all_boot_languages)
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
AC_SUBST(all_gtfiles_files_langs)
AC_SUBST(all_gtfiles_files_files)
AC_SUBST(all_lang_makefrags)
AC_SUBST(all_lang_makefiles)
AC_SUBST(all_languages)
AC_SUBST(all_stagestuff)
AC_SUBST(build_exeext)
AC_SUBST(build_install_headers_dir)
AC_SUBST(build_xm_file_list)
AC_SUBST(build_xm_include_list)
AC_SUBST(build_xm_defines)
AC_SUBST(check_languages)
AC_SUBST(cc_set_by_configure)
AC_SUBST(quoted_cc_set_by_configure)
AC_SUBST(cpp_install_dir)
AC_SUBST(xmake_file)
AC_SUBST(tmake_file)
AC_SUBST(extra_gcc_objs)
AC_SUBST(extra_headers_list)
AC_SUBST(extra_objs)
AC_SUBST(extra_parts)
AC_SUBST(extra_passes)
AC_SUBST(extra_programs)
AC_SUBST(float_h_file)
AC_SUBST(gcc_config_arguments)
AC_SUBST(gcc_gxx_include_dir)
AC_SUBST(libstdcxx_incdir)
AC_SUBST(gcc_version)
AC_SUBST(gcc_version_full)
AC_SUBST(gcc_version_trigger)
AC_SUBST(host_exeext)
AC_SUBST(host_xm_file_list)
AC_SUBST(host_xm_include_list)
AC_SUBST(host_xm_defines)
AC_SUBST(out_host_hook_obj)
AC_SUBST(install)
AC_SUBST(lang_opt_files)
AC_SUBST(lang_specs_files)
AC_SUBST(lang_tree_files)
AC_SUBST(local_prefix)
AC_SUBST(md_file)
AC_SUBST(objc_boehm_gc)
AC_SUBST(out_file)
AC_SUBST(out_object_file)
AC_SUBST(stage_prefix_set_by_configure)
AC_SUBST(quoted_stage_prefix_set_by_configure)
AC_SUBST(symbolic_link)
AC_SUBST(thread_file)
AC_SUBST(tm_file_list)
AC_SUBST(tm_include_list)
AC_SUBST(tm_defines)
AC_SUBST(tm_p_file_list)
AC_SUBST(tm_p_include_list)
AC_SUBST(xm_file_list)
AC_SUBST(xm_include_list)
AC_SUBST(xm_defines)
AC_SUBST(target_noncanonical)
AC_SUBST(c_target_objs)
AC_SUBST(cxx_target_objs)
AC_SUBST(target_cpu_default)
AC_SUBST_FILE(language_hooks)
# If it doesn't already exist, create document directory
echo "checking for the document directory." 1>&2
if test -d doc ; then
true
else
mkdir doc
fi
# Echo link setup.
if test x${build} = x${host} ; then
if test x${host} = x${target} ; then
echo "Links are now set up to build a native compiler for ${target}." 1>&2
else
echo "Links are now set up to build a cross-compiler" 1>&2
echo " from ${host} to ${target}." 1>&2
fi
else
if test x${host} = x${target} ; then
echo "Links are now set up to build (on ${build}) a native compiler" 1>&2
echo " for ${target}." 1>&2
else
echo "Links are now set up to build (on ${build}) a cross-compiler" 1>&2
echo " from ${host} to ${target}." 1>&2
fi
fi
# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)
# Create the Makefile
# and configure language subdirectories
AC_CONFIG_FILES($all_outputs)
AC_CONFIG_COMMANDS([default],
[
case ${CONFIG_HEADERS} in
*auto-host.h:config.in*)
echo > cstamp-h ;;
esac
# Make sure all the subdirs exist.
for d in $subdirs
do
test -d $d || mkdir $d
done
# If the host supports symlinks, point stage[1234] at ../stage[1234] so
# bootstrapping and the installation procedure can still use
# CC="stage1/xgcc -Bstage1/". If the host doesn't support symlinks,
# FLAGS_TO_PASS has been modified to solve the problem there.
# This is virtually a duplicate of what happens in configure.lang; we do
# an extra check to make sure this only happens if ln -s can be used.
if test "$symbolic_link" = "ln -s"; then
for d in ${subdirs} fixinc ; do
STARTDIR=`${PWDCMD-pwd}`
cd $d
for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
do
rm -f $t
$symbolic_link ../$t $t 2>/dev/null
done
cd $STARTDIR
done
else true ; fi
],
[subdirs='$subdirs'
symbolic_link='$symbolic_link'
])
AC_OUTPUT
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