# 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(2.59) AC_INIT AC_CONFIG_SRCDIR(tree.c) AC_CONFIG_HEADER(auto-host.h:config.in) #Set to 1 on a release branch is_release= # Determine the host, build, and target systems AC_CANONICAL_BUILD AC_CANONICAL_HOST AC_CANONICAL_TARGET # Determine the noncanonical target name, for directory use. ACX_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_ERROR([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 # With demangler in GNU ld AC_ARG_WITH(demangler-in-ld, [ --with-demangler-in-ld try to use demangler in GNU ld.], demangler_in_ld="$with_demangler_in_ld", demangler_in_ld=no) # ---------------------- # Find default assembler # ---------------------- # With GNU as AC_ARG_WITH(gnu-as, [ --with-gnu-as arrange to work with GNU as], gas_flag="$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_ERROR([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_PROG_CPP AC_C_INLINE gcc_AC_C_LONG_LONG # 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 # --------------------- # Warnings and checking # --------------------- # Check $CC warning features (if it's GCC). # We want to use -pedantic, but we don't want warnings about # * 'long long' # * variadic macros # So, we only use -pedantic if we can disable those warnings. AC_CACHE_CHECK( [whether ${CC} accepts -Wno-long-long], [ac_cv_prog_cc_w_no_long_long], [save_CFLAGS="$CFLAGS" CFLAGS="-Wno-long-long" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], [ac_cv_prog_cc_w_no_long_long=yes], [ac_cv_prog_cc_w_no_long_long=no]) CFLAGS="$save_CFLAGS" ]) AC_CACHE_CHECK( [whether ${CC} accepts -Wno-variadic-macros], [ac_cv_prog_cc_w_no_variadic_macros], [save_CFLAGS="$CFLAGS" CFLAGS="-Wno-variadic-macros" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], [ac_cv_prog_cc_w_no_variadic_macros=yes], [ac_cv_prog_cc_w_no_variadic_macros=no]) CFLAGS="$save_CFLAGS" ]) strict1_warn= if test $ac_cv_prog_cc_w_no_long_long = yes \ && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros" fi AC_SUBST(strict1_warn) # Add -Wold-style-definition if it's accepted AC_CACHE_CHECK( [whether ${CC} accepts -Wold-style-definition], [ac_cv_prog_cc_w_old_style_definition], [save_CFLAGS="$CFLAGS" CFLAGS="-Wold-style-definition" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], [ac_cv_prog_cc_w_old_style_definition=yes], [ac_cv_prog_cc_w_old_style_definition=no]) CFLAGS="$save_CFLAGS" ]) if test $ac_cv_prog_cc_w_old_style_definition = yes ; then strict1_warn="${strict1_warn} -Wold-style-definition" fi # Enable -Werror, period. AC_ARG_ENABLE(werror_always, [ --enable-werror-always enable -Werror always], [], [enable_werror_always=no]) if test x${enable_werror_always} = xyes ; then strict1_warn="${strict1_warn} -Werror" WERROR=-Werror fi # 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. AC_ARG_ENABLE(werror, [ --enable-werror enable -Werror in bootstrap stage2 and later], [], [if test x$is_release = x ; then # Default to "yes" on development branches. enable_werror=yes else # Default to "no" on release branches. enable_werror=no fi]) if test x$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: assert,fold,gc,gcac,misc, rtlflag,rtl,tree,valgrind,release,yes,all;], [ac_checking_flags="${enableval}"],[ # Determine the default checks. if test x$is_release = x ; then ac_checking_flags=yes else ac_checking_flags=release fi]) ac_assert_checking=1 ac_checking= ac_tree_checking= ac_rtl_checking= ac_rtlflag_checking= ac_gc_checking= ac_gc_always_collect= ac_fold_checking= IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS," for check in $ac_checking_flags do case $check in yes) ac_assert_checking=1 ; ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ; ac_rtlflag_checking=1 ;; no) ac_assert_checking= ; ac_checking= ; ac_tree_checking= ; ac_rtl_checking= ; ac_rtlflag_checking= ; ac_gc_checking= ; ac_gc_always_collect= ; ac_fold_checking= ;; all) ac_assert_checking=1 ; ac_checking=1 ; ac_tree_checking=1 ; ac_rtl_checking=1 ; ac_rtlflag_checking=1 ; ac_gc_checking=1 ; ac_gc_always_collect=1 ; ac_fold_checking=1 ;; release) ac_assert_checking=1 ;; assert) ac_assert_checking=1 ;; fold) ac_fold_checking=1 ;; gc) ac_gc_checking=1 ;; gcac) ac_gc_always_collect=1 ;; misc) ac_checking=1 ;; rtlflag) ac_rtlflag_checking=1 ;; rtl) ac_rtl_checking=1 ;; tree) ac_tree_checking=1 ;; valgrind) ac_checking_valgrind=1 ;; *) AC_MSG_ERROR(unknown check category $check) ;; esac done IFS="$ac_save_IFS" 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_assert_checking != x ; then AC_DEFINE(ENABLE_ASSERT_CHECKING, 1, [Define if you want assertions enabled. This is a cheap check.]) fi if test x$ac_tree_checking != x ; then AC_DEFINE(ENABLE_TREE_CHECKING, 1, [Define if you want all operations on trees (the basic data structure of the front ends) to be checked for dynamic type safety at runtime. This is moderately expensive. The tree browser debugging routines will also be enabled by this option. ]) TREEBROWSER=tree-browser.o fi AC_SUBST(TREEBROWSER) if test x$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$ac_checking_valgrind != x ; then # It is certainly possible that there's valgrind but no valgrind.h. # GCC relies on making annotations so we must have both. AC_MSG_CHECKING(for VALGRIND_DISCARD in ) AC_TRY_CPP( [#include #ifndef VALGRIND_DISCARD #error VALGRIND_DISCARD not defined #endif], [gcc_cv_header_valgrind_memcheck_h=yes], [gcc_cv_header_valgrind_memcheck_h=no]) AC_MSG_RESULT($gcc_cv_header_valgrind_memcheck_h) AC_MSG_CHECKING(for VALGRIND_DISCARD in ) AC_TRY_CPP( [#include #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 $gcc_cv_header_memcheck_h = yes; then AC_DEFINE(HAVE_MEMCHECK_H, 1, [Define if valgrind's memcheck.h header is installed.]) fi fi AC_SUBST(valgrind_path_defines) AC_SUBST(valgrind_command) AC_ARG_ENABLE(mapped-location, [ --enable-mapped-location location_t is fileline integer cookie],, enable_mapped_location=no) if test "$enable_mapped_location" = yes ; then AC_DEFINE(USE_MAPPED_LOCATION, 1, [Define if location_t is fileline integer cookie.]) fi # 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" ;; no) # a.k.a. --disable-coverage coverage_flags="" ;; *) 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="$with_stabs", stabs=no) # Determine whether or not multilibs are enabled. AC_ARG_ENABLE(multilib, [ --enable-multilib enable library support for multiple ABIs], [], [enable_multilib=yes]) AC_SUBST(enable_multilib) # Enable __cxa_atexit for C++. AC_ARG_ENABLE(__cxa_atexit, [ --enable-__cxa_atexit enable __cxa_atexit for C++], [], []) # Enable threads # Pass with no value to take the default # Pass with a value to specify a thread package AC_ARG_ENABLE(threads, [ --enable-threads enable thread usage for target GCC --enable-threads=LIB use LIB thread package for target GCC],, [enable_threads='']) AC_ARG_ENABLE(objc-gc, [ --enable-objc-gc enable the use of Boehm's garbage collector with the GNU Objective-C runtime], if test x$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 ${enable_intermodule} in yes) onestep="-onestep";; *) onestep="";; esac], [onestep=""]) AC_SUBST(onestep) # Sanity check enable_languages in case someone does not run the toplevel # configure # script. AC_ARG_ENABLE(languages, [ --enable-languages=LIST specify which front-ends to build], [case ,${enable_languages}, in ,,|,yes,) # go safe -- we cannot be much sure without the toplevel # configure's # analysis of which target libs are present and usable enable_languages=c ;; *,all,*) AC_MSG_ERROR([only the toplevel supports --enable-languages=all]) ;; *,c,*) ;; *) enable_languages=c,${enable_languages} ;; esac], [enable_languages=c]) 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' $lang` if test "x$lang_alias" = x then echo "$lang doesn't set \$language." 1>&2 exit 1 fi case ",$enable_languages," in *,$lang_alias,*) subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;; esac ;; changequote([,])dnl esac done # ------------------------- # Checks for other programs # ------------------------- AC_PROG_MAKE_SET # Find some useful tools AC_PROG_AWK # We need awk to create options.c and options.h. # Bail out if it's missing. case ${AWK} in "") AC_MSG_ERROR([can't build without awk, bailing out]) ;; esac gcc_AC_PROG_LN_S ACX_PROG_LN($LN_S) AC_PROG_RANLIB case "${host}" in *-*-darwin*) # By default, the Darwin ranlib will not treat common symbols as # definitions when building the archive table of contents. Other # ranlibs do that; pass an option to the Darwin ranlib that makes # it behave similarly. ranlib_flags="-c" ;; *) ranlib_flags="" esac AC_SUBST(ranlib_flags) gcc_AC_PROG_INSTALL # See if cmp has --ignore-initial. gcc_AC_PROG_CMP_IGNORE_INITIAL # See if we have the mktemp command. AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no) MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing" # 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]*]) if test $gcc_cv_prog_makeinfo_modern = no; then MAKEINFO="$MISSING makeinfo" AC_MSG_WARN([ *** Makeinfo is missing or too old. *** Info documentation will not be built.]) BUILD_INFO= else BUILD_INFO=info fi AC_SUBST(BUILD_INFO) # 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 else AC_MSG_RESULT(no) GENERATED_MANPAGES= fi AC_SUBST(GENERATED_MANPAGES) # How about lex? dnl Don't use AC_PROG_LEX; we insist on flex. dnl LEXLIB is not useful in gcc. AC_CHECK_PROGS([FLEX], flex, [$MISSING flex]) # Bison? AC_CHECK_PROGS([BISON], bison, [$MISSING bison]) # Binutils are not build modules, unlike bison/flex/makeinfo. So we # check for build == host before using them. # NM if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \ && test -d ../binutils ; then NM='$(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' else AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar) fi # -------------------- # Checks for C headers # -------------------- AC_MSG_CHECKING(for GNU C library) AC_CACHE_VAL(gcc_cv_glibc, [AC_TRY_COMPILE( [#include ],[ #if ! (defined __GLIBC__ || defined __GNU_LIBRARY__) #error Not a GNU C library system #endif], [gcc_cv_glibc=yes], gcc_cv_glibc=no)]) AC_MSG_RESULT($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 ACX_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 only if it exists, # doesn't clash with , and declares intmax_t. AC_MSG_CHECKING(for inttypes.h) AC_CACHE_VAL(gcc_cv_header_inttypes_h, [AC_TRY_COMPILE( [#include #include ], [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 $gcc_cv_header_inttypes_h = yes; then AC_DEFINE(HAVE_INTTYPES_H, 1, [Define if you have a working header file.]) fi dnl Disabled until we have a complete test for buggy enum bitfields. dnl gcc_AC_C_ENUM_BF_UNSIGNED AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \ sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \ fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \ scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \ setlocale) if test x$ac_cv_func_mbstowcs = xyes; then AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works, [ AC_TRY_RUN([#include 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 getpagesize, , ,[ #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 #endif ]) AC_TRY_COMPILE([ #include "ansidecl.h" #include "system.h" #ifdef HAVE_SYS_RESOURCE_H #include #endif ],[rlim_t l = 0;],,[AC_DEFINE([rlim_t],[long], [Define to \`long' if doesn't define.])]) gcc_AC_CHECK_DECLS(ldgetname, , ,[ #include "ansidecl.h" #include "system.h" #ifdef HAVE_LDFCN_H #include #endif ]) gcc_AC_CHECK_DECLS(times, , ,[ #include "ansidecl.h" #include "system.h" #ifdef HAVE_SYS_TIMES_H #include #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 #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 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 $gcc_cv_type_clock_t = yes; then AC_DEFINE(HAVE_CLOCK_T, 1, [Define if defines clock_t.]) fi # Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests. CFLAGS="$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.])]) # For platforms with the unwind ABI which includes an unwind library, # libunwind, we can choose to use the system libunwind. AC_ARG_WITH(system-libunwind, [ --with-system-libunwind use installed libunwind]) # -------------------------------------------------------- # 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$need_64bit_hwint = xyes; then AC_DEFINE(NEED_64BIT_HOST_WIDE_INT, 1, [Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).]) fi if test x$use_long_long_for_widest_fast_int = xyes; then AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1, [Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still efficiently supported by the host hardware.]) 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 # --------- # Threading # --------- # Check if a valid thread package case ${enable_threads} in "" | no) # No threads target_thread_file='single' ;; yes) # default target_thread_file='single' ;; aix | dce | gnat | irix | posix | rtems | \ single | solaris | vxworks | win32 ) target_thread_file=${enable_threads} ;; *) echo "${enable_threads} is an unknown thread package" 1>&2 exit 1 ;; esac if test x${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 # 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) # -------- # UNSORTED # -------- 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 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}" \ ${realsrcdir}/configure \ --enable-languages=${enable_languages-all} \ --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 $tempdir build_auto=auto-build.h fi AC_SUBST(build_subdir) tm_file="${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' <conftest.out $gcc_config_arguments EOF gcc_config_arguments_str=`cat conftest.out` rm -f conftest.out cat > configargs.h </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$with_headers" = xno ; } ; then inhibit_libc=-Dinhibit_libc fi AC_SUBST(inhibit_libc) # When building gcc with a cross-compiler, we need to adjust things so # that the generator programs are still built with the native compiler. # Also, we cannot run fixincludes or fix-header. # These are the normal (build=host) settings: CC_FOR_BUILD='$(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_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)' if test "x$TARGET_SYSTEM_ROOT" = x; then STMP_FIXINC= STMP_FIXPROTO= fi fi # When bootstrapping from the toplevel, only run fixincludes during stage1 if test -d ../prev-gcc then STMP_FIXINC= cp -R ../prev-gcc/include include 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 # Define collect2 in Makefile. case $host_can_use_collect2 in no) collect2= ;; *) collect2='collect2$(exeext)' ;; esac AC_SUBST([collect2]) # 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" case $host_can_use_collect2 in no) AC_MSG_ERROR([collect2 is required but cannot be built on this system]) ;; esac ;; esac # --------------------------- # Assembler & linker features # --------------------------- # 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$host_exeext; then # Build using assembler in the current directory. gcc_cv_as=./as$host_exeext elif test -f $gcc_cv_as_gas_srcdir/configure.in \ && test -f ../gas/Makefile \ && test x$build = x$host; then # Single tree build which includes gas. We want to prefer it # over whatever linker top-level may have detected, since # we'll use what we're building after installation anyway. in_tree_gas=yes _gcc_COMPUTE_GAS_VERSION rm -f as$host_exeext $symbolic_link ../gas/as-new$host_exeext as$host_exeext 2>/dev/null in_tree_gas_is_elf=no if grep 'obj_format = elf' ../gas/Makefile > /dev/null \ || (grep 'obj_format = multi' ../gas/Makefile \ && grep 'extra_objects =.* obj-elf' ../gas/Makefile) > /dev/null then in_tree_gas_is_elf=yes fi m4_pattern_allow([AS_FOR_TARGET])dnl elif test -x "$AS_FOR_TARGET"; then gcc_cv_as="$AS_FOR_TARGET" elif test -x "$AS" && test x$host = x$target; then gcc_cv_as="$AS" fi if test "x$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 collect-ld$host_exeext; then # Build using linker in the current directory. gcc_cv_ld=./collect-ld$host_exeext elif test -f $gcc_cv_ld_gld_srcdir/configure.in \ && test -f ../ld/Makefile \ && test x$build = x$host; 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. 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$host_exeext \ 2>/dev/null elif test -x "$LD_FOR_TARGET"; then gcc_cv_ld="$LD_FOR_TARGET" elif test -x "$LD" && test x$host = x$target; then gcc_cv_ld="$LD" fi if test "x$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 $as_minor -lt 11 then : else gcc_cv_as_leb128=yes fi fi], [AC_DEFINE(HAVE_AS_LEB128, 1, [Define if your assembler supports .sleb128 and .uleb128.])]) # GAS versions up to and including 2.11.0 may mis-optimize # .eh_frame data. gcc_GAS_CHECK_FEATURE(eh_frame optimization, gcc_cv_as_eh_frame, [elf,2,12,0],, [ .text .LFB1: .4byte 0 .L1: .4byte 0 .LFE1: .section .eh_frame,"aw",@progbits __FRAME_BEGIN__: .4byte .LECIE1-.LSCIE1 .LSCIE1: .4byte 0x0 .byte 0x1 .ascii "z\0" .byte 0x1 .byte 0x78 .byte 0x1a .byte 0x0 .byte 0x4 .4byte 1 .p2align 1 .LECIE1: .LSFDE1: .4byte .LEFDE1-.LASFDE1 .LASFDE1: .4byte .LASFDE1-__FRAME_BEGIN__ .4byte .LFB1 .4byte .LFE1-.LFB1 .byte 0x4 .4byte .LFE1-.LFB1 .byte 0x4 .4byte .L1-.LFB1 .LEFDE1:], [ dnl # For autoconf 2.5x, must protect trailing spaces with @&t@. cat > conftest.lit < conftest.big </dev/null \ | tail -3 > conftest.got \ && { cmp conftest.lit conftest.got > /dev/null 2>&1 \ || cmp conftest.big conftest.got > /dev/null 2>&1; } then gcc_cv_as_eh_frame=yes elif AC_TRY_COMMAND($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], [$conftest_s],, [AC_DEFINE(HAVE_AS_TLS, 1, [Define if your assembler supports thread-local storage.])]) fi # Target-specific assembler checks. if test x"$demangler_in_ld" = xyes; then AC_MSG_CHECKING(linker --demangle support) gcc_cv_ld_demangle=no if test $in_tree_ld = yes; then if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 14 -o "$gcc_cv_gld_major_version" -gt 2; then \ gcc_cv_ld_demangle=yes fi elif test x$gcc_cv_ld != x -a x"$gnu_ld" = xyes; then # Check if the GNU linker supports --demangle option if $gcc_cv_ld --help 2>/dev/null | grep no-demangle > /dev/null; then gcc_cv_ld_demangle=yes fi fi if test x"$gcc_cv_ld_demangle" = xyes; then AC_DEFINE(HAVE_LD_DEMANGLE, 1, [Define if your linker supports --demangle option.]) fi AC_MSG_RESULT($gcc_cv_ld_demangle) fi case "$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 case $target_os in cygwin* | pe | mingw32*) # Used for DWARF 2 in PE gcc_GAS_CHECK_FEATURE([.secrel32 relocs], gcc_cv_as_ix86_pe_secrel32, [2,15,91],, [.text foo: nop .data .secrel32 foo], [if test x$gcc_cv_ld != x \ && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then gcc_cv_as_ix86_pe_secrel32=yes fi rm -f conftest], [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1, [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])]) ;; esac 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="($target_cpu_default)|MASK_EXPLICIT_RELOCS" fi]) if test x$gas_flag = xyes \ || test x"$host" != x"$build" \ || test ! -x "$gcc_cv_as" \ || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then : else echo "*** This configuration requires the GNU assembler" >&2 exit 1 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) # -------- # UNSORTED # -------- 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 case "$target" in powerpc64*-*-linux*) AC_CACHE_CHECK(linker support for omitting dot symbols, gcc_cv_ld_no_dot_syms, [gcc_cv_ld_no_dot_syms=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; then gcc_cv_ld_no_dot_syms=yes fi elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then cat > conftest1.s < conftest2.s < /dev/null 2>&1 \ && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \ && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then gcc_cv_ld_no_dot_syms=yes fi rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s fi ]) if test x"$gcc_cv_ld_no_dot_syms" = xyes; then AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1, [Define if your PowerPC64 linker only needs function descriptor syms.]) 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, "$prefix/include", [Define to PREFIX/include if cpp should also search that directory.]) fi # Find out what GC implementation we want, or may, use. AC_ARG_WITH(gc, [ --with-gc={page,zone} choose the garbage collection mechanism to use with the compiler], [case "$withval" in 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 AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis]) AC_ARG_WITH(libbanshee, [ --with-libbanshee enable libbanshee], libbanshee="$with_libbanshee", libbanshee=no) if test x"$libbanshee" = xyes; then BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a " BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to" ANDER="tree-alias-ander.o" AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available]) else BANSHEELIB="" BANSHEEINC="" ANDER="" fi AC_MSG_RESULT($with_libbanshee) AC_SUBST(ANDER) AC_SUBST(BANSHEEINC) AC_SUBST(BANSHEELIB) # -------------- # Language hooks # -------------- # 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/$subdir-tree.def" fi done # These (without "all_") are set in each config-lang.in. # `language' must be a single word so is spelled singularly. all_languages= all_boot_languages= all_compilers= all_stagestuff= all_outputs='Makefile gccbug mklibgcc mkheaders libada-mk' # List of language makefile fragments. all_lang_makefrags= # List of language subdirectory makefiles. Deprecated. all_lang_makefiles= # Files for gengtype all_gtfiles="$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 # -------- # UNSORTED # -------- # 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 / 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(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 ${target}." 1>&2 fi fi AC_ARG_VAR(GMPLIBS,[How to link GMP]) AC_ARG_VAR(GMPINC,[How to find GMP include files]) # Configure the subdirectories # AC_CONFIG_SUBDIRS($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 ${subdirs} ; do STARTDIR=`${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