# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, # 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, # 2014, 2015, 2016, 2019, 2022 Free Software Foundation, Inc. # # This file 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 3 of the License, or # (at your option) any later version. # # This program 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 this program; see the file COPYING3. If not see # . ############################################################################## ### WARNING: this file contains embedded tabs. Do not run untabify on this file. m4_include(config/acx.m4) m4_include(config/override.m4) m4_include(config/proginstall.m4) m4_include(config/elf.m4) m4_include(config/ax_cxx_compile_stdcxx.m4) m4_include(config/gcc-plugin.m4) m4_include([libtool.m4]) m4_include([ltoptions.m4]) m4_include([ltsugar.m4]) m4_include([ltversion.m4]) m4_include([lt~obsolete.m4]) m4_include([config/isl.m4]) AC_INIT AC_CONFIG_SRCDIR([move-if-change]) AC_DISABLE_OPTION_CHECKING progname=$0 # if PWD already has a value, it is probably wrong. if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi # Export original configure arguments for use by sub-configures. # Quote arguments with shell meta charatcers. TOPLEVEL_CONFIGURE_ARGUMENTS= set -- "$progname" "$@" for ac_arg do case "$ac_arg" in *" "*|*" "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*) ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` # if the argument is of the form -foo=baz, quote the baz part only ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;; *) ;; esac # Add the quoted argument to the list. TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg" done if test "$silent" = yes; then TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent" fi # Remove the initial space we just introduced and, as these will be # expanded by make, quote '$'. TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'` AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) # Find the build, host, and target systems. ACX_NONCANONICAL_BUILD ACX_NONCANONICAL_HOST ACX_NONCANONICAL_TARGET dnl Autoconf 2.5x and later will set a default program prefix if dnl --target was used, even if it was the same as --host. Disable dnl that behavior. This must be done before AC_CANONICAL_TARGET dnl to take effect. test "$host_noncanonical" = "$target_noncanonical" && test "$program_prefix$program_suffix$program_transform_name" = \ NONENONEs,x,x, && program_transform_name=s,y,y, AC_CANONICAL_TARGET AC_ARG_PROGRAM m4_pattern_allow([^AS_FOR_TARGET$])dnl m4_pattern_allow([^AS_FOR_BUILD$])dnl # Get 'install' or 'install-sh' and its variants. AC_PROG_INSTALL ACX_PROG_LN AC_PROG_LN_S AC_PROG_SED AC_PROG_AWK srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` # We pass INSTALL explicitly to sub-makes. Make sure that it is not # a relative path. if test "$INSTALL" = "${srcdir}/install-sh -c"; then INSTALL="${srcpwd}/install-sh -c" fi # Set srcdir to "." if that's what it is. # This is important for multilib support. pwd=`${PWDCMD-pwd}` if test "${pwd}" = "${srcpwd}" ; then srcdir=. fi topsrcdir=$srcpwd extra_host_args= ### To add a new directory to the tree, first choose whether it is a target ### or a host dependent tool. Then put it into the appropriate list ### (library or tools, host or target), doing a dependency sort. # Subdirs will be configured in the order listed in build_configdirs, # configdirs, or target_configdirs; see the serialization section below. # Dependency sorting is only needed when *configuration* must be done in # a particular order. In all cases a dependency should be specified in # the Makefile, whether or not it's implicitly specified here. # Double entries in build_configdirs, configdirs, or target_configdirs may # cause circular dependencies and break everything horribly. # these library is used by various programs built for the build # environment # build_libs="build-libiberty build-libcpp" # these tools are built for the build environment build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes" # these libraries are used by various programs built for the host environment #f host_libs="gettext libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libcody libdecnumber gmp mpfr mpc isl libiconv libctf libsframe libgrust " # these tools are built for the host environment # Note, the powerpc-eabi build depends on sim occurring before gdb in order to # know that we are building the simulator. # binutils, gas and ld appear in that order because it makes sense to run # "make check" in that particular order. # If --enable-gold is used, "gold" may replace "ld". host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gdbserver gprof etc expect dejagnu m4 utils guile fastjar gnattools libcc1 gm2tools gotools c++tools" # these libraries are built for the target environment, and are built after # the host libraries and the host tools (which may be a cross compiler) # Note that libiberty is not a target library. target_libraries="target-libgcc \ target-libbacktrace \ target-libgloss \ target-newlib \ target-libgomp \ target-libatomic \ target-libitm \ target-libstdc++-v3 \ target-libsanitizer \ target-libvtv \ target-libssp \ target-libquadmath \ target-libgfortran \ target-libffi \ target-libobjc \ target-libada \ target-libgm2 \ target-libgo \ target-libgrust \ target-libphobos \ target-zlib" # these tools are built using the target libraries, and are intended to # run only in the target environment # # note: any program that *uses* libraries that are in the "target_libraries" # list belongs in this list. # target_tools="target-rda" ################################################################################ ## All tools belong in one of the four categories, and are assigned above ## We assign ${configdirs} this way to remove all embedded newlines. This ## is important because configure will choke if they ever get through. ## ${configdirs} is directories we build using the host tools. ## ${target_configdirs} is directories we build using the target tools. configdirs=`echo ${host_libs} ${host_tools}` target_configdirs=`echo ${target_libraries} ${target_tools}` build_configdirs=`echo ${build_libs} ${build_tools}` m4_divert_text([PARSE_ARGS], [case $srcdir in *" "*) m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl AC_MSG_ERROR([path to source, $srcdir, contains spaces]) m4_popdef([AS_MESSAGE_LOG_FD])dnl ;; esac ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'` ]) ################################################################################ srcname="gnu development package" # This gets set non-empty for some net releases of packages. appdirs="" # Define is_cross_compiler to save on calls to 'test'. is_cross_compiler= if test x"${host}" = x"${target}" ; then is_cross_compiler=no else is_cross_compiler=yes fi # Find the build and target subdir names. 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Install gold as "ld.gold" and "ld", # install ld as "ld.bfd". # --enable-gold[=default] --disable-ld # Build only gold, which is then installed as both "ld.gold" and "ld". # --enable-gold --enable-ld=default # Build both gold (installed as "ld.gold") and ld (installed as "ld" # and ld.bfd). # In other words, ld is default # --enable-gold=default --enable-ld=default # Error. default_ld= AC_ARG_ENABLE(gold, [AS_HELP_STRING([[--enable-gold[=ARG]]], [build gold @<:@ARG={default,yes,no}@:>@])], ENABLE_GOLD=$enableval, ENABLE_GOLD=no) case "${ENABLE_GOLD}" in yes|default) # Check for ELF target. is_elf=no case "${target}" in *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \ | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \ | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \ | *-*-solaris2* | *-*-nto* | *-*-nacl* | *-*-haiku*) case "${target}" in *-*-linux*aout* | *-*-linux*oldld*) ;; *) is_elf=yes ;; esac esac if test "$is_elf" = "yes"; then # Check for target supported by gold. case "${target}" in i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \ | aarch64*-*-* | tilegx*-*-* | mips*-*-* | s390*-*-* | loongarch*-*-*) configdirs="$configdirs gold" if test x${ENABLE_GOLD} = xdefault; then default_ld=gold fi ENABLE_GOLD=yes ;; esac fi ;; no) ;; *) AC_MSG_ERROR([invalid --enable-gold argument]) ;; esac AC_ARG_ENABLE(ld, [AS_HELP_STRING([[--enable-ld[=ARG]]], [build ld @<:@ARG={default,yes,no}@:>@])], ENABLE_LD=$enableval, ENABLE_LD=yes) case "${ENABLE_LD}" in default) if test x${default_ld} != x; then AC_MSG_ERROR([either gold or ld can be the default ld]) fi ;; yes) ;; no) if test x${ENABLE_GOLD} != xyes; then AC_MSG_WARN([neither ld nor gold are enabled]) fi configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'` ;; *) AC_MSG_ERROR([invalid --enable-ld argument]) ;; esac AC_ARG_ENABLE(gprofng, [AS_HELP_STRING([[--enable-gprofng[=ARG]]], [build gprofng @<:@ARG={yes,no}@:>@])], enable_gprofng=$enableval, enable_gprofng=yes) if test "$enable_gprofng" = "yes"; then case "${target}" in x86_64-*-linux* | i?86-*-linux* | aarch64-*-linux* | riscv64-*-linux*) configdirs="$configdirs gprofng" ;; esac fi # PR gas/19109 # Decide the default method for compressing debug sections. # Provide a configure time option to override our default. AC_ARG_ENABLE(compressed_debug_sections, [AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,gold,ld,none}], [Enable compressed debug sections for gas, gold or ld by default])], [ if test x"$enable_compressed_debug_sections" = xyes; then AC_MSG_ERROR([no program with compressed debug sections specified]) fi ], [enable_compressed_debug_sections=]) # Select default compression algorithm. AC_ARG_ENABLE(default_compressed_debug_sections_algorithm, [AS_HELP_STRING([--enable-default-compressed-debug-sections-algorithm={zlib,zstd}], [Default compression algorithm for --enable-compressed-debug-sections.])], [], [default_compressed_debug_sections_algorithm=]) # Configure extra directories which are host specific case "${host}" in *-cygwin*) configdirs="$configdirs libtermcap" ;; esac # A target can indicate whether a language isn't supported for some reason. # Only spaces may be used in this macro; not newlines or tabs. unsupported_languages= # Remove more programs from consideration, based on the host or # target this usually means that a port of the program doesn't # exist yet. case "${host}" in i[[3456789]]86-*-msdosdjgpp*) noconfigdirs="$noconfigdirs tcl tk itcl" ;; esac # Default to --disable-year2038 until we can handle differences between # projects that use gnulib (which understands year 2038) and projects that # do not (like BFD). AC_ARG_ENABLE(year2038, AS_HELP_STRING([--enable-year2038], [enable support for timestamps past the year 2038]), ENABLE_YEAR2038=$enableval, ENABLE_YEAR2038=no) enable_year2038= if test "${ENABLE_YEAR2038}" = "no" ; then enable_year2038=no fi AC_ARG_ENABLE(libquadmath, AS_HELP_STRING([--disable-libquadmath], [do not build libquadmath directory]), ENABLE_LIBQUADMATH=$enableval, ENABLE_LIBQUADMATH=yes) if test "${ENABLE_LIBQUADMATH}" = "no" ; then noconfigdirs="$noconfigdirs target-libquadmath" fi AC_ARG_ENABLE(libquadmath-support, AS_HELP_STRING([--disable-libquadmath-support], [disable libquadmath support for Fortran]), ENABLE_LIBQUADMATH_SUPPORT=$enableval, ENABLE_LIBQUADMATH_SUPPORT=yes) enable_libquadmath_support= if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then enable_libquadmath_support=no fi AC_ARG_ENABLE(libada, [AS_HELP_STRING([--enable-libada], [build libada directory])], ENABLE_LIBADA=$enableval, ENABLE_LIBADA=yes) if test "${ENABLE_LIBADA}" != "yes" ; then noconfigdirs="$noconfigdirs gnattools" fi AC_ARG_ENABLE(libgm2, [AS_HELP_STRING([--enable-libgm2], [build libgm2 directory])], ENABLE_LIBGM2=$enableval, ENABLE_LIBGM2=no) if test "${ENABLE_LIBGM2}" != "yes" ; then noconfigdirs="$noconfigdirs gm2tools" fi AC_ARG_ENABLE(libssp, [AS_HELP_STRING([--enable-libssp], [build libssp directory])], ENABLE_LIBSSP=$enableval, ENABLE_LIBSSP=yes) AC_ARG_ENABLE(libstdcxx, AS_HELP_STRING([--disable-libstdcxx], [do not build libstdc++-v3 directory]), ENABLE_LIBSTDCXX=$enableval, ENABLE_LIBSTDCXX=default) [if test "${ENABLE_LIBSTDCXX}" = "no" ; then noconfigdirs="$noconfigdirs target-libstdc++-v3" fi] # Enable libgomp by default on hosted POSIX systems, and a few others. if test x$enable_libgomp = x ; then case "${target}" in *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu) ;; *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*) ;; *-*-solaris2* | *-*-hpux11*) ;; *-*-darwin* | *-*-aix*) ;; nvptx*-*-* | amdgcn*-*-*) ;; *) noconfigdirs="$noconfigdirs target-libgomp" ;; esac fi # Disable libatomic on unsupported systems. if test -d ${srcdir}/libatomic; then if test x$enable_libatomic = x; then AC_MSG_CHECKING([for libatomic support]) if (srcdir=${srcdir}/libatomic; \ . ${srcdir}/configure.tgt; \ test -n "$UNSUPPORTED") then AC_MSG_RESULT([no]) noconfigdirs="$noconfigdirs target-libatomic" else AC_MSG_RESULT([yes]) fi fi fi # Disable libitm on unsupported systems. if test -d ${srcdir}/libitm; then if test x$enable_libitm = x; then AC_MSG_CHECKING([for libitm support]) if (srcdir=${srcdir}/libitm; \ . ${srcdir}/configure.tgt; \ test -n "$UNSUPPORTED") then AC_MSG_RESULT([no]) noconfigdirs="$noconfigdirs target-libitm" else AC_MSG_RESULT([yes]) fi fi fi # Disable libsanitizer on unsupported systems. if test -d ${srcdir}/libsanitizer; then if test x$enable_libsanitizer = x; then AC_MSG_CHECKING([for libsanitizer support]) if (srcdir=${srcdir}/libsanitizer; \ . ${srcdir}/configure.tgt; \ test -n "$UNSUPPORTED") then AC_MSG_RESULT([no]) noconfigdirs="$noconfigdirs target-libsanitizer" else AC_MSG_RESULT([yes]) fi fi fi # Disable libvtv on unsupported systems. if test -d ${srcdir}/libvtv; then if test x$enable_libvtv = x; then AC_MSG_CHECKING([for libvtv support]) if (srcdir=${srcdir}/libvtv; 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*) # See PR46792 regarding target-libffi. noconfigdirs="$noconfigdirs target-libffi";; esac ;; hppa*64*-*-hpux*) noconfigdirs="$noconfigdirs target-libffi" ;; hppa*-hp-hpux11*) ;; hppa*-*-hpux*) noconfigdirs="$noconfigdirs target-libffi" ;; ia64*-*-*vms*) noconfigdirs="$noconfigdirs target-libffi" ;; i[[3456789]]86-w64-mingw*) noconfigdirs="$noconfigdirs target-libffi" ;; i[[3456789]]86-*-mingw*) noconfigdirs="$noconfigdirs target-libffi" ;; x86_64-*-mingw*) noconfigdirs="$noconfigdirs target-libffi" ;; mmix-*-*) noconfigdirs="$noconfigdirs target-libffi" ;; powerpc-*-aix*) ;; rs6000-*-aix*) ;; ft32-*-*) noconfigdirs="$noconfigdirs target-libffi" ;; *-*-lynxos*) noconfigdirs="$noconfigdirs target-libffi" ;; esac # Disable the go frontend on systems where it is known to not work. 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hppa*64*-*-linux*) ;; hppa*-*-linux*) ;; hppa*-*-*elf* | \ hppa*-*-lites* | \ hppa*-*-openbsd* | \ hppa*64*-*-*) ;; hppa*-*-pro*) ;; hppa*-*-*) noconfigdirs="$noconfigdirs ld" ;; i960-*-*) noconfigdirs="$noconfigdirs gdb" ;; ia64*-*-elf*) # No gdb support yet. noconfigdirs="$noconfigdirs readline libgui itcl gdb" ;; ia64*-**-hpux*) # No ld support yet. noconfigdirs="$noconfigdirs gdb libgui itcl ld" ;; ia64*-*-*vms*) # No ld support yet. noconfigdirs="$noconfigdirs libgui itcl ld" ;; i[[3456789]]86-w64-mingw*) ;; i[[3456789]]86-*-mingw*) target_configdirs="$target_configdirs target-winsup" ;; *-*-cygwin*) target_configdirs="$target_configdirs target-libtermcap target-winsup" noconfigdirs="$noconfigdirs target-libgloss" # always build newlib if winsup directory is present. if test -d "$srcdir/winsup/cygwin"; then skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` elif test -d "$srcdir/newlib"; then echo "Warning: winsup/cygwin is missing so newlib can't be built." fi ;; i[[3456789]]86-*-pe) noconfigdirs="$noconfigdirs target-libgloss" ;; i[[3456789]]86-*-sco3.2v5*) # The linker does not yet know about weak symbols in COFF, # and is not configured to handle mixed ELF and COFF. noconfigdirs="$noconfigdirs ld target-libgloss" ;; i[[3456789]]86-*-sco*) noconfigdirs="$noconfigdirs gprof target-libgloss" ;; i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*) noconfigdirs="$noconfigdirs target-libgloss" ;; i[[3456789]]86-*-sysv4*) noconfigdirs="$noconfigdirs target-libgloss" ;; i[[3456789]]86-*-beos*) noconfigdirs="$noconfigdirs gdb" ;; i[[3456789]]86-*-rdos*) noconfigdirs="$noconfigdirs gdb" ;; kvx-*-*) noconfigdirs="$noconfigdirs gdb gdbserver sim" ;; mmix-*-*) noconfigdirs="$noconfigdirs gdb" ;; mt-*-*) noconfigdirs="$noconfigdirs sim" ;; nfp-*-*) noconfigdirs="$noconfigdirs ld gas gdb gprof sim" noconfigdirs="$noconfigdirs $target_libraries" ;; pdp11-*-*) noconfigdirs="$noconfigdirs gdb gprof" ;; powerpc-*-aix*) # copied from rs6000-*-* entry noconfigdirs="$noconfigdirs gprof" ;; powerpc*-*-winnt* | powerpc*-*-pe*) target_configdirs="$target_configdirs target-winsup" noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl" # always build newlib. skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; # This is temporary until we can link against shared libraries powerpcle-*-solaris*) noconfigdirs="$noconfigdirs gdb sim tcl tk itcl" ;; powerpc-*-beos*) noconfigdirs="$noconfigdirs gdb" ;; rs6000-*-lynxos*) noconfigdirs="$noconfigdirs gprof" ;; rs6000-*-aix*) noconfigdirs="$noconfigdirs gprof" ;; rs6000-*-*) noconfigdirs="$noconfigdirs gprof" ;; m68k-apollo-*) noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss" ;; microblaze*) noconfigdirs="$noconfigdirs gprof" ;; mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*) if test x$with_newlib = xyes; then noconfigdirs="$noconfigdirs gprof" fi ;; mips*-*-irix5*) noconfigdirs="$noconfigdirs gprof target-libgloss" ;; mips*-*-irix6*) noconfigdirs="$noconfigdirs gprof target-libgloss" ;; mips*-*-bsd*) noconfigdirs="$noconfigdirs ld gas gprof target-libgloss" ;; mips*-*-linux*) ;; mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \ | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*) noconfigdirs="$noconfigdirs ld gas gprof" ;; mips*-*-*) noconfigdirs="$noconfigdirs gprof" ;; nvptx*-*-*) noconfigdirs="$noconfigdirs target-libssp target-libstdc++-v3 target-libobjc" ;; sh-*-*) case "${target}" in sh*-*-elf) ;; *) noconfigdirs="$noconfigdirs target-libgloss" ;; esac ;; sparc-*-sunos4*) if test x${is_cross_compiler} = xno ; then use_gnu_ld=no fi ;; tic6x-*-*) noconfigdirs="$noconfigdirs sim" ;; tilepro*-*-* | tilegx*-*-*) noconfigdirs="$noconfigdirs sim" ;; v810-*-*) noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss" ;; vax-*-*) noconfigdirs="$noconfigdirs target-newlib target-libgloss" ;; wasm32-*-*) noconfigdirs="$noconfigdirs ld" ;; loongarch*-*-linux*) ;; loongarch*-*-*) noconfigdirs="$noconfigdirs gprof" ;; esac # If we aren't building newlib, then don't build libgloss, since libgloss # depends upon some newlib header files. case "${noconfigdirs}" in *target-libgloss*) ;; *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;; esac # Work in distributions that contain no compiler tools, like Autoconf. host_makefile_frag=/dev/null if test -d ${srcdir}/config ; then case "${host}" in i[[3456789]]86-*-msdosdjgpp*) host_makefile_frag="config/mh-djgpp" ;; *-cygwin*) ACX_CHECK_CYGWIN_CAT_WORKS host_makefile_frag="config/mh-cygwin" ;; *-mingw*) host_makefile_frag="config/mh-mingw" ;; alpha*-linux*) host_makefile_frag="config/mh-alpha-linux" ;; hppa*-hp-hpux*) host_makefile_frag="config/mh-pa" ;; hppa*-*) host_makefile_frag="config/mh-pa" ;; i?86-*-darwin[[89]]* | i?86-*-darwin1[[0-7]]* | powerpc*-*-darwin*) host_makefile_frag="config/mh-darwin" ;; powerpc-*-aix*) host_makefile_frag="config/mh-ppc-aix" ;; rs6000-*-aix*) host_makefile_frag="config/mh-ppc-aix" ;; esac fi if test "${build}" != "${host}" ; then AR_FOR_BUILD=${AR_FOR_BUILD-ar} AS_FOR_BUILD=${AS_FOR_BUILD-as} CC_FOR_BUILD=${CC_FOR_BUILD-gcc} CPP_FOR_BUILD="${CPP_FOR_BUILD-\$(CC_FOR_BUILD) -E}" CXX_FOR_BUILD=${CXX_FOR_BUILD-g++} DSYMUTIL_FOR_BUILD=${DSYMUTIL_FOR_BUILD-dsymutil} GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran} GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo} GDC_FOR_BUILD=${GDC_FOR_BUILD-gdc} DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool} LD_FOR_BUILD=${LD_FOR_BUILD-ld} NM_FOR_BUILD=${NM_FOR_BUILD-nm} RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib} WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres} WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc} else AR_FOR_BUILD="\$(AR)" AS_FOR_BUILD="\$(AS)" CC_FOR_BUILD="\$(CC)" CXX_FOR_BUILD="\$(CXX)" DSYMUTIL_FOR_BUILD="\$(DSYMUTIL)" GFORTRAN_FOR_BUILD="\$(GFORTRAN)" GOC_FOR_BUILD="\$(GOC)" GDC_FOR_BUILD="\$(GDC)" DLLTOOL_FOR_BUILD="\$(DLLTOOL)" LD_FOR_BUILD="\$(LD)" NM_FOR_BUILD="\$(NM)" RANLIB_FOR_BUILD="\$(RANLIB)" WINDRES_FOR_BUILD="\$(WINDRES)" WINDMC_FOR_BUILD="\$(WINDMC)" fi AC_PROG_CC_C99 AC_PROG_CXX # We must set the default linker to the linker used by gcc for the correct # operation of libtool. If LD is not defined and we are using gcc, try to # set the LD default to the ld used by gcc. if test -z "$LD"; then if test "$GCC" = yes; then case $build in *-*-mingw*) gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;; *) gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;; esac case $gcc_prog_ld in # Accept absolute paths. [[\\/]* | [A-Za-z]:[\\/]*)] LD="$gcc_prog_ld" ;; esac fi fi # Check whether -static-libstdc++ -static-libgcc is supported. have_static_libs=no if test "$GCC" = yes; then saved_LDFLAGS="$LDFLAGS" LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) AC_LANG_PUSH(C++) AC_LINK_IFELSE([AC_LANG_SOURCE([ #if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5) #error -static-libstdc++ not implemented #endif int main() {}])], [AC_MSG_RESULT([yes]); have_static_libs=yes], [AC_MSG_RESULT([no])]) AC_LANG_POP(C++) LDFLAGS="$saved_LDFLAGS" fi ACX_PROG_GNAT ACX_PROG_GDC ACX_PROG_CMP_IGNORE_INITIAL AC_ARG_ENABLE([bootstrap], [AS_HELP_STRING([--enable-bootstrap], [enable bootstrapping @<:@yes if native build@:>@])],, enable_bootstrap=default) # Issue errors and warnings for invalid/strange bootstrap combinations. if test -r $srcdir/gcc/configure; then have_compiler=yes else have_compiler=no fi case "$have_compiler:$host:$target:$enable_bootstrap" in *:*:*:no) ;; # Default behavior. Enable bootstrap if we have a compiler # and we are in a native configuration. yes:$build:$build:default) enable_bootstrap=yes ;; *:*:*:default) enable_bootstrap=no ;; # We have a compiler and we are in a native configuration, bootstrap is ok yes:$build:$build:yes) ;; # Other configurations, but we have a compiler. Assume the user knows # what he's doing. yes:*:*:yes) AC_MSG_WARN([trying to bootstrap a cross compiler]) ;; # No compiler: if they passed --enable-bootstrap explicitly, fail no:*:*:yes) AC_MSG_ERROR([cannot bootstrap without a compiler]) ;; # Fail if wrong command line *) AC_MSG_ERROR([invalid option for --enable-bootstrap]) ;; esac # When bootstrapping with GCC, build stage 1 in C++11 mode to ensure that a # C++11 compiler can still start the bootstrap. Otherwise, if building GCC, # require C++11 (or higher). if test "$enable_bootstrap:$GXX" = "yes:yes"; then CXX="$CXX -std=c++11" elif test "$have_compiler" = yes; then AX_CXX_COMPILE_STDCXX(11) if test "${build}" != "${host}"; then AX_CXX_COMPILE_STDCXX(11, [], [], [_FOR_BUILD]) fi fi AC_ARG_ENABLE([pgo-build], [AS_HELP_STRING([--enable-pgo-build[[=lto]]], [enable the PGO build])], [enable_pgo_build=$enableval], [enable_pgo_build=no]) # Issue errors and warnings for invalid/strange PGO build combinations. case "$have_compiler:$host:$target:$enable_pgo_build" in *:*:*:no) ;; # Allow the PGO build only if we aren't building a compiler and # we are in a native configuration. no:$build:$build:yes | no:$build:$build:lto) ;; # Disallow the PGO bootstrap if we are building a compiler. yes:*:*:yes | yes:*:*:lto) AC_MSG_ERROR([cannot perform the PGO bootstrap when building a compiler]) ;; *) AC_MSG_ERROR([invalid option for --enable-pgo-build]) ;; esac if test "$enable_pgo_build" != "no"; then AC_MSG_CHECKING([whether the compiler supports -fprofile-generate]) old_CFLAGS="$CFLAGS" PGO_BUILD_GEN_CFLAGS="-fprofile-generate" CFLAGS="$CFLAGS $PGO_BUILD_CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],, [PGO_BUILD_GEN_CFLAGS=]) CFLAGS="$old_CFLAGS" if test -n "$PGO_BUILD_GEN_CFLAGS"; then AC_MSG_RESULT([yes]) PGO_BUILD_USE_CFLAGS="-fprofile-use" else AC_MSG_RESULT([no]) AC_MSG_ERROR([cannot perform the PGO build without -fprofile-generate]) fi if test "$enable_pgo_build" = "lto"; then AC_MSG_CHECKING([whether the compiler supports -flto=jobserver -ffat-lto-objects]) old_CFLAGS="$CFLAGS" PGO_BUILD_LTO_CFLAGS="-flto=jobserver -ffat-lto-objects" CFLAGS="$CFLAGS $PGO_BUILD_LTO_CFLAGS" AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo;])],, [PGO_BUILD_LTO_CFLAGS=]) CFLAGS="$old_CFLAGS" if test -n "$PGO_BUILD_LTO_CFLAGS"; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) AC_MSG_WARN([LTO is disabled for the PGO build]) fi fi fi AC_SUBST(PGO_BUILD_GEN_CFLAGS) AC_SUBST(PGO_BUILD_USE_CFLAGS) AC_SUBST(PGO_BUILD_LTO_CFLAGS) # Used for setting $lt_cv_objdir _LT_CHECK_OBJDIR # Check for GMP, MPFR and MPC require_gmp=no require_mpc=no if test -d ${srcdir}/gcc ; then require_gmp=yes require_mpc=yes fi if test -d ${srcdir}/gdb ; then if test "x$enable_gdb" != xno; then require_gmp=yes fi fi gmplibs="-lmpfr -lgmp" if test x"$require_mpc" = "xyes" ; then gmplibs="-lmpc $gmplibs" fi gmpinc= have_gmp=no # Specify a location for mpc # check for this first so it ends up on the link line before mpfr. AC_ARG_WITH(mpc, [AS_HELP_STRING([--with-mpc=PATH], [specify prefix directory for installed MPC package. Equivalent to --with-mpc-include=PATH/include plus --with-mpc-lib=PATH/lib])]) AC_ARG_WITH(mpc-include, [AS_HELP_STRING([--with-mpc-include=PATH], [specify directory for installed MPC include files])]) AC_ARG_WITH(mpc-lib, [AS_HELP_STRING([--with-mpc-lib=PATH], [specify directory for the installed MPC library])]) if test "x$with_mpc" != x; then gmplibs="-L$with_mpc/lib $gmplibs" gmpinc="-I$with_mpc/include $gmpinc" fi if test "x$with_mpc_include" != x; then gmpinc="-I$with_mpc_include $gmpinc" fi if test "x$with_mpc_lib" != x; then gmplibs="-L$with_mpc_lib $gmplibs" fi if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs" gmpinc='-I$$s/mpc/src '"$gmpinc" # Do not test the mpc version. Assume that it is sufficient, since # it is in the source tree, and the library has not been built yet # but it would be included on the link line in the version check below # hence making the test fail. have_gmp=yes fi # Specify a location for mpfr # check for this first so it ends up on the link line before gmp. AC_ARG_WITH(mpfr, [AS_HELP_STRING([--with-mpfr=PATH], [specify prefix directory for installed MPFR package. 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AC_CHECK_PROGS(EXPECT, expect, expect) case " $configdirs " in *" expect "*) test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect' ;; esac AC_CHECK_PROGS(RUNTEST, runtest, runtest) case " $configdirs " in *" dejagnu "*) test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest' ;; esac # Host tools. NCN_STRICT_CHECK_TOOLS(AR, ar) NCN_STRICT_CHECK_TOOLS(AS, as) NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool) NCN_STRICT_CHECK_TOOLS(DSYMUTIL, dsymutil) NCN_STRICT_CHECK_TOOLS(LD, ld) NCN_STRICT_CHECK_TOOLS(LIPO, lipo) NCN_STRICT_CHECK_TOOLS(NM, nm) NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true) NCN_STRICT_CHECK_TOOLS(STRIP, strip, true) NCN_STRICT_CHECK_TOOLS(WINDRES, windres) NCN_STRICT_CHECK_TOOLS(WINDMC, windmc) NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy) NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump) NCN_STRICT_CHECK_TOOLS(OTOOL, otool) NCN_STRICT_CHECK_TOOLS(READELF, readelf) AC_SUBST(CC) AC_SUBST(CXX) AC_SUBST(CFLAGS) AC_SUBST(CXXFLAGS) AC_SUBST(GDC) AC_SUBST(GDCFLAGS) GDCFLAGS=${GDCFLAGS-${CFLAGS}} AC_SUBST(PKG_CONFIG_PATH) GCC_PLUGIN_OPTION(PLUGIN_OPTION) AR_PLUGIN_OPTION= RANLIB_PLUGIN_OPTION= if test -n "$PLUGIN_OPTION"; then if $AR --help 2>&1 | grep -q "\--plugin"; then AR_PLUGIN_OPTION="$PLUGIN_OPTION" fi if $RANLIB --help 2>&1 | grep -q "\--plugin"; then RANLIB_PLUGIN_OPTION="$PLUGIN_OPTION" fi fi AC_SUBST(AR_PLUGIN_OPTION) AC_SUBST(RANLIB_PLUGIN_OPTION) # Target tools. AC_ARG_WITH([build-time-tools], [AS_HELP_STRING([--with-build-time-tools=PATH], [use given path to find target tools during the build])], [case x"$withval" in x/*) ;; *) with_build_time_tools= AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path]) ;; esac], [with_build_time_tools=]) NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc) NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx) NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET}) NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran) NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo) NCN_STRICT_CHECK_TARGET_TOOLS(GDC_FOR_TARGET, gdc) NCN_STRICT_CHECK_TARGET_TOOLS(GM2_FOR_TARGET, gm2) ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar) ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as) ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool) ACX_CHECK_INSTALLED_TARGET_TOOL(DSYMUTIL_FOR_TARGET, dsymutil) ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld) ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo) ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm) ACX_CHECK_INSTALLED_TARGET_TOOL(OBJCOPY_FOR_TARGET, objcopy) ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump) ACX_CHECK_INSTALLED_TARGET_TOOL(OTOOL_FOR_TARGET, otool) ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib) ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf) ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip) ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres) ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc) RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET" GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar]) GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new]) GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX, [gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs], c++) GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX, [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs], c++) GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool]) GCC_TARGET_TOOL(dsymutil, DSYMUTIL_FOR_TARGET, DSYMUTIL) GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/]) GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN, [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran) GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC, [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go) GCC_TARGET_TOOL(gdc, GDC_FOR_TARGET, GDC, [gcc/gdc -B$$r/$(HOST_SUBDIR)/gcc/], d) GCC_TARGET_TOOL(gm2, GM2_FOR_TARGET, GM2, [gcc/gm2 -B$$r/$(HOST_SUBDIR)/gcc/], m2) GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new]) GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO) GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new]) GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy]) GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump]) GCC_TARGET_TOOL(otool, OTOOL_FOR_TARGET, OTOOL) GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib]) GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf]) GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new]) GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres]) GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc]) AC_SUBST(FLAGS_FOR_TARGET) AC_SUBST(RAW_CXX_FOR_TARGET) # Certain tools may need extra flags. AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target} RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target} NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target} # When building target libraries, except in a Canadian cross, we use # the same toolchain as the compiler we just built. COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)' COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)' COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)' if test $host = $build; then case " $configdirs " in *" gcc "*) COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as' COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld' COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target} ;; esac fi AC_SUBST(COMPILER_AS_FOR_TARGET) AC_SUBST(COMPILER_LD_FOR_TARGET) AC_SUBST(COMPILER_NM_FOR_TARGET) AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) AC_ARG_ENABLE(maintainer-mode, [AS_HELP_STRING([--enable-maintainer-mode], [enable make rules and dependencies not useful (and sometimes confusing) to the casual installer])], USE_MAINTAINER_MODE=$enableval, USE_MAINTAINER_MODE=no) AC_MSG_RESULT($USE_MAINTAINER_MODE) AC_SUBST(MAINTAINER_MODE_TRUE) AC_SUBST(MAINTAINER_MODE_FALSE) if test "$USE_MAINTAINER_MODE" = yes; then MAINTAINER_MODE_TRUE= MAINTAINER_MODE_FALSE='#' else MAINTAINER_MODE_TRUE='#' MAINTAINER_MODE_FALSE= fi MAINT=$MAINTAINER_MODE_TRUE AC_SUBST(MAINT)dnl # --------------------- # GCC bootstrap support # --------------------- # Stage specific cflags for build. stage1_cflags="-g" case $build in vax-*-*) case ${GCC} in yes) stage1_cflags="-g -Wa,-J" ;; *) stage1_cflags="-g -J" ;; esac ;; esac AC_SUBST(stage1_cflags) # Enable --enable-checking in stage1 of the compiler. AC_ARG_ENABLE(stage1-checking, [AS_HELP_STRING([[--enable-stage1-checking[=all]]], [choose additional checking for stage1 of the compiler])], [stage1_checking=--enable-checking=${enable_stage1_checking}], [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then # For --disable-checking or implicit --enable-checking=release, avoid # setting --enable-checking=gc in the default stage1 checking for LTO # bootstraps. See PR62077. case $BUILD_CONFIG in *lto*) stage1_checking=--enable-checking=release,misc,gimple,rtlflag,tree,types;; *) stage1_checking=--enable-checking=yes,types;; esac if test "x$enable_checking" = x && \ test -d ${srcdir}/gcc && \ test x"`cat ${srcdir}/gcc/DEV-PHASE`" = xexperimental; then stage1_checking=--enable-checking=yes,types,extra fi else stage1_checking=--enable-checking=$enable_checking,types fi]) AC_SUBST(stage1_checking) # Enable -Werror in bootstrap stage2 and later. AC_ARG_ENABLE(werror, [AS_HELP_STRING([--enable-werror], [enable -Werror in bootstrap stage2 and later])], [ case ${enable_werror} in yes) stage2_werror_flag="--enable-werror-always" ;; *) stage2_werror_flag="" ;; esac ], [ if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then case $BUILD_CONFIG in bootstrap-debug) stage2_werror_flag="--enable-werror-always" ;; "") stage2_werror_flag="--enable-werror-always" ;; esac fi ]) AC_SUBST(stage2_werror_flag) # Specify what files to not compare during bootstrap. compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*" compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/M2Version*" compare_exclusions="$compare_exclusions | gcc/m2/gm2-compiler-boot/SYSTEM*" compare_exclusions="$compare_exclusions | gcc/m2/gm2version*" case "$target" in hppa*64*-*-hpux*) ;; powerpc*-ibm-aix*) compare_exclusions="$compare_exclusions | *libgomp*\$(objext)" ;; esac AC_SUBST(compare_exclusions) AC_CONFIG_FILES([Makefile], [sed "$extrasub_build" Makefile | sed "$extrasub_host" | sed "$extrasub_target" > mf$$ mv -f mf$$ Makefile], [extrasub_build="$extrasub_build" extrasub_host="$extrasub_host" extrasub_target="$extrasub_target"]) AC_OUTPUT