# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, # 1999, 2000, 2001, 2002, 2003, 2004 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 2 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; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ############################################################################## ### WARNING: this file contains embedded tabs. Do not run untabify on this file. sinclude(config/acx.m4) AC_INIT(move-if-change) AC_PREREQ(2.13) AC_CANONICAL_SYSTEM AC_ARG_PROGRAM # Get 'install' or 'install-sh' and its variants. AC_PROG_INSTALL ACX_PROG_LN AC_PROG_LN_S ### we might need to use some other shell than /bin/sh for running subshells ### If we are on Windows, search for the shell. This will permit people ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure ### without also having to set CONFIG_SHELL. This code will work when ### using bash, which sets OSTYPE. case "${OSTYPE}" in *win32*) if test x${CONFIG_SHELL} = x ; then if test ! -f /bin/sh ; then if test x${SHELL} != x && test -f ${SHELL} ; then CONFIG_SHELL=${SHELL} export CONFIG_SHELL else for prog in sh sh.exe bash bash.exe; do IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$prog; then CONFIG_SHELL=$dir/$prog export CONFIG_SHELL break fi done IFS="$save_ifs" test -n "${CONFIG_SHELL}" && break done fi fi fi ;; esac config_shell=${CONFIG_SHELL-/bin/sh} progname=$0 # if PWD already has a value, it is probably wrong. if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi # Export original configure arguments for use by sub-configures. These # will be expanded by make, so quote '$'. tmp="$progname $@" sed -e 's,\$,$$,g' < conftestsed.out $tmp EOF_SED TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out` rm -f conftestsed.out AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS) moveifchange=${srcdir}/move-if-change # Set srcdir to "." if that's what it is. # This is important for multilib support. pwd=`${PWDCMD-pwd}` srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}` if test "${pwd}" = "${srcpwd}" ; then srcdir=. fi topsrcdir=$srcpwd extra_host_args= # Define the trigger file to make sure configure will re-run whenever # the gcc version number changes. if test "${with_gcc_version_trigger+set}" = set ; then gcc_version_trigger="$with_gcc_version_trigger" gcc_version=`grep version_string ${with_gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'` else # If gcc's sources are available, define the trigger file. if test -f ${topsrcdir}/gcc/version.c ; then gcc_version_trigger=${topsrcdir}/gcc/version.c gcc_version=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'` case "$ac_configure_args" in *--with-gcc-version-trigger=$gcc_version_trigger* ) ;; * ) # Add to all subconfigure arguments: build, host, and target. ac_configure_args="$ac_configure_args --with-gcc-version-trigger=$gcc_version_trigger" ;; esac fi fi ### 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" # these tools are built for the build environment build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes" # these libraries are used by various programs built for the host environment # host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp" # 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. host_tools="texinfo byacc flex bison binutils gas ld gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar" # libgcj represents the runtime libraries only used by gcj. libgcj="target-libffi \ target-boehm-gc \ target-zlib \ target-qthreads \ target-libjava" # 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) # target_libraries="target-libiberty \ target-libgloss \ target-newlib \ target-libstdc++-v3 \ target-libmudflap \ target-libgfortran \ ${libgcj} \ target-libobjc \ target-libada" # 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. those programs are also very likely # candidates for the "native_only" list which follows # target_tools="target-examples target-groff target-gperf 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} ${build_tools}` ################################################################################ srcname="gnu development package" # This gets set non-empty for some net releases of packages. appdirs="" # Define is_cross_compiler to save on calls to 'test'. is_cross_compiler= if test x"${host}" = x"${target}" ; then is_cross_compiler=no else is_cross_compiler=yes fi # Find the build and target subdir names. GCC_TOPLEV_SUBDIRS # Skipdirs are removed silently. skipdirs= # Noconfigdirs are removed loudly. noconfigdirs="" use_gnu_ld= # Make sure we don't let GNU ld be added if we didn't want it. if test x$with_gnu_ld = xno ; then use_gnu_ld=no noconfigdirs="$noconfigdirs ld" fi use_gnu_as= # Make sure we don't let GNU as be added if we didn't want it. if test x$with_gnu_as = xno ; then use_gnu_as=no noconfigdirs="$noconfigdirs gas" fi # some tools are so dependent upon X11 that if we're not building with X, # it's not even worth trying to configure, much less build, that tool. case ${with_x} in yes | "") ;; # the default value for this tree is that X11 is available no) skipdirs="${skipdirs} tk itcl libgui" # We won't be able to build gdbtk without X. enable_gdbtk=no ;; *) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;; esac # Some tools are only suitable for building in a "native" situation. # Remove these if host!=target. native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf" # Similarly, some are only suitable for cross toolchains. # Remove these if host=target. cross_only="target-libgloss target-newlib target-opcodes" case $is_cross_compiler in no) skipdirs="${skipdirs} ${cross_only}" ;; yes) skipdirs="${skipdirs} ${native_only}" ;; esac # If both --with-headers and --with-libs are specified, default to # --without-newlib. if test x"${with_headers}" != x && test x"${with_headers} != xno \ && test x"${with_libs}" != x && test x"${with_libs} != xno ; then if test x"${with_newlib}" = x ; then with_newlib=no fi fi # Recognize --with-newlib/--without-newlib. case ${with_newlib} in no) skipdirs="${skipdirs} target-newlib" ;; yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;; esac # Configure extra directories which are host specific case "${host}" in *-cygwin*) configdirs="$configdirs libtermcap" ;; esac # Remove more programs from consideration, based on the host or # target this usually means that a port of the program doesn't # exist yet. case "${host}" in hppa*64*-*-*) noconfigdirs="$noconfigdirs byacc" ;; i[[3456789]]86-*-vsta) noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext" ;; i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*) noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi" ;; i[[3456789]]86-*-mingw32*) # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv" noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool" ;; i[[3456789]]86-*-beos*) noconfigdirs="$noconfigdirs tk itcl libgui gdb" ;; *-*-cygwin*) noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl" ;; *-*-netbsd*) noconfigdirs="$noconfigdirs rcs" ;; ppc*-*-pe) noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv" ;; powerpc-*-beos*) noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline" ;; *-*-darwin*) noconfigdirs="$noconfigdirs tk itcl libgui" ;; esac AC_ARG_ENABLE(libada, [ --enable-libada Builds libada directory], ENABLE_LIBADA=$enableval, ENABLE_LIBADA=yes) if test "${ENABLE_LIBADA}" != "yes" ; then noconfigdirs="$noconfigdirs target-libada" fi # Save it here so that, even in case of --enable-libgcj, if the Java # front-end isn't enabled, we still get libgcj disabled. libgcj_saved=$libgcj case $enable_libgcj in yes) # If we reset it here, it won't get added to noconfigdirs in the # target-specific build rules, so it will be forcibly enabled # (unless the Java language itself isn't enabled). libgcj= ;; no) # Make sure we get it printed in the list of not supported target libs. noconfigdirs="$noconfigdirs ${libgcj}" ;; esac # Allow --disable-libmudflap to exclude target-libmudflap case $enable_libmudflap in yes) ;; no) noconfigdirs="$noconfigdirs target-libmudflap" ;; "") case "${target}" in *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu) # Enable libmudflap by default in GNU and friends. ;; *-*-freebsd*) # Enable libmudflap by default in FreeBSD. ;; *) # Disable it by default everywhere else. noconfigdirs="$noconfigdirs target-libmudflap" ;; esac esac case "${target}" in *-*-chorusos) noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}" ;; powerpc-*-darwin*) noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof" noconfigdirs="$noconfigdirs target-libobjc" ;; *-*-darwin*) noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof" noconfigdirs="$noconfigdirs target-libobjc ${libgcj}" ;; *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*) noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}" ;; *-*-freebsd*) noconfigdirs="$noconfigdirs target-newlib target-libgloss" if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \ && test -f /usr/local/include/gmp.h; then with_gmp=/usr/local fi # Skip some stuff that's unsupported on some FreeBSD configurations. case "${target}" in i*86-*-*) ;; alpha*-*-*) ;; *) noconfigdirs="$noconfigdirs ${libgcj}" ;; esac ;; *-*-kaos*) # Remove unsupported stuff on all kaOS configurations. skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx" skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf" skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib" noconfigdirs="$noconfigdirs target-libgloss" ;; *-*-netbsd*) # Skip some stuff on all NetBSD configurations. noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss" # Skip some stuff that's unsupported on some NetBSD configurations. case "${target}" in i*86-*-netbsdelf*) ;; arm*-*-netbsdelf*) ;; *) noconfigdirs="$noconfigdirs ${libgcj}" ;; esac ;; *-*-netware*) noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap" ;; *-*-rtems*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; *-*-uclinux*) noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}" ;; *-*-vxworks*) noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}" ;; alpha*-dec-osf*) # ld works, but does not support shared libraries. # newlib is not 64 bit ready. I'm not sure about fileutils. # gas doesn't generate exception information. noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss" ;; alpha*-*-*vms*) noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}" ;; alpha*-*-linux*) # newlib is not 64 bit ready noconfigdirs="$noconfigdirs target-newlib target-libgloss" ;; alpha*-*-*) # newlib is not 64 bit ready noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}" ;; am33_2.0-*-linux*) noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss" ;; sh-*-linux*) noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss" ;; sh*-*-pe|mips*-*-pe|*arm-wince-pe) noconfigdirs="$noconfigdirs ${libgcj}" noconfigdirs="$noconfigdirs target-examples" noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr" noconfigdirs="$noconfigdirs tcl tk itcl libgui sim" noconfigdirs="$noconfigdirs expect dejagnu" # the C++ libraries don't build on top of CE's C libraries noconfigdirs="$noconfigdirs target-libstdc++-v3" noconfigdirs="$noconfigdirs target-newlib" case "${host}" in *-*-cygwin*) ;; # keep gdb and readline *) noconfigdirs="$noconfigdirs gdb readline" ;; esac ;; arc-*-*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; arm-*-coff | strongarm-*-coff | xscale-*-coff) noconfigdirs="$noconfigdirs ${libgcj}" ;; arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* ) noconfigdirs="$noconfigdirs target-libffi target-qthreads" ;; arm*-*-symbianelf*) noconfigdirs="$noconfigdirs ${libgcj} target-libiberty" ;; arm-*-pe*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; arm-*-oabi*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; thumb-*-coff) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; thumb-*-elf) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; thumb-*-oabi) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; thumb-*-pe) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; arm-*-riscix*) noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}" ;; avr-*-*) noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}" ;; c4x-*-* | tic4x-*-*) noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}" ;; c54x*-*-* | tic54x-*-*) noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib" ;; cris-*-*) noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss" ;; crx-*-*) noconfigdirs="$noconfigdirs target-libgloss target-libstdc++-v3 target-mudflap ${libgcj}" ;; d10v-*-*) noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}" ;; d30v-*-*) noconfigdirs="$noconfigdirs ${libgcj} gdb" ;; fr30-*-elf*) noconfigdirs="$noconfigdirs ${libgcj} gdb" ;; frv-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; h8300*-*-*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; h8500-*-*) noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}" ;; hppa*64*-*-linux* | parisc*64*-*-linux*) # In this case, it's because the hppa64-linux target is for # the kernel only at this point and has no libc, and thus no # headers, crt*.o, etc., all of which are needed by these. noconfigdirs="$noconfigdirs target-zlib" ;; hppa*-*-*elf* | \ parisc*-*-linux* | hppa*-*-linux* | \ hppa*-*-lites* | \ hppa*-*-openbsd* | \ hppa*64*-*-*) noconfigdirs="$noconfigdirs ${libgcj}" # Do configure ld/binutils/gas for this case. ;; hppa*-*-*) # According to Alexandre Oliva , libjava won't # build on HP-UX 10.20. noconfigdirs="$noconfigdirs ld shellutils ${libgcj}" ;; i960-*-*) noconfigdirs="$noconfigdirs ${libgcj} gdb" ;; ia64*-*-elf*) # No gdb support yet. noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb" ;; ia64*-**-hpux*) # No gdb or ld support yet. noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld" ;; i[[3456789]]86-*-coff | i[[3456789]]86-*-elf) noconfigdirs="$noconfigdirs ${libgcj}" ;; i[[3456789]]86-*-linux*) # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's # not build java stuff by default. case "${target}" in *-*-*libc1*) noconfigdirs="$noconfigdirs ${libgcj}";; esac # This section makes it possible to build newlib natively on linux. # If we are using a cross compiler then don't configure newlib. if test x${is_cross_compiler} != xno ; then noconfigdirs="$noconfigdirs target-newlib" fi noconfigdirs="$noconfigdirs target-libgloss" # If we are not using a cross compiler, do configure newlib. # Note however, that newlib will only be configured in this situation # if the --with-newlib option has been given, because otherwise # 'target-newlib' will appear in skipdirs. ;; i[[3456789]]86-*-mingw32*) target_configdirs="$target_configdirs target-mingw" noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}" # Can't build gdb for mingw32 if not native. case "${host}" in i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc. *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv" ;; esac ;; *-*-cygwin*) target_configdirs="$target_configdirs target-libtermcap target-winsup" noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}" # always build newlib if winsup directory is present. if test -d "$srcdir/winsup" then skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` else echo "Warning: winsup is missing so newlib can't be built." fi # Can't build gdb for Cygwin if not native. case "${host}" in *-*-cygwin*) ;; # keep gdb tcl tk expect etc. *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv" ;; esac ;; i[[3456789]]86-*-pe) noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}" ;; i[[3456789]]86-*-sco3.2v5*) # The linker does not yet know about weak symbols in COFF, # and is not configured to handle mixed ELF and COFF. noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}" ;; i[[3456789]]86-*-sco*) noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; i[[3456789]]86-*-solaris2*) noconfigdirs="$noconfigdirs target-libgloss" ;; i[[3456789]]86-*-sysv4*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; i[[3456789]]86-*-beos*) noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}" ;; m32r-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*) noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}" ;; m68k-*-elf*) noconfigdirs="$noconfigdirs ${libgcj}" ;; m68k-*-coff*) noconfigdirs="$noconfigdirs ${libgcj}" ;; mcore-*-pe*) # The EPOC C++ environment does not support exceptions or rtti, # and so building libstdc++-v3 tends not to always work. noconfigdirs="$noconfigdirs target-libstdc++-v3" ;; mmix-*-*) noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss" ;; mn10200-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; mn10300-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; powerpc-*-aix*) # copied from rs6000-*-* entry noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe) target_configdirs="$target_configdirs target-winsup" noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}" # 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 make tcl tk expect itcl gnuserv ${libgcj}" ;; powerpc-*-beos*) noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}" ;; powerpc-*-eabi) noconfigdirs="$noconfigdirs ${libgcj}" ;; rs6000-*-lynxos*) noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}" ;; rs6000-*-aix*) noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; rs6000-*-*) noconfigdirs="$noconfigdirs gprof ${libgcj}" ;; m68k-apollo-*) noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}" ;; mips*-*-irix5*) noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; mips*-*-irix6*) # Linking libjava exceeds command-line length limits on at least # IRIX 6.2, but not on IRIX 6.5. # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham # noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; mips*-dec-bsd*) noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; mips*-*-bsd*) noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}" ;; mipstx39-*-*) noconfigdirs="$noconfigdirs gprof ${libgcj}" # same as generic mips ;; mips64*-*-linux*) noconfigdirs="$noconfigdirs target-newlib ${libgcj}" ;; mips*-*-linux*) noconfigdirs="$noconfigdirs target-newlib target-libgloss" ;; mips*-*-*) noconfigdirs="$noconfigdirs gprof ${libgcj}" ;; romp-*-*) noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}" ;; sh-*-*) case "${host}" in i[[3456789]]86-*-vsta) ;; # don't add gprof back in i[[3456789]]86-*-go32*) ;; # don't add gprof back in i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;; esac noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; sh64-*-*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; sparc-*-elf*) noconfigdirs="$noconfigdirs ${libgcj}" ;; sparc64-*-elf*) noconfigdirs="$noconfigdirs ${libgcj}" ;; sparclite-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; sparc-*-sunos4*) noconfigdirs="$noconfigdirs ${libgcj}" if test x${is_cross_compiler} != xno ; then noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss" else use_gnu_ld=no fi ;; sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*) ;; v810-*-*) noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}" ;; v850-*-*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; v850e-*-*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; v850ea-*-*) noconfigdirs="$noconfigdirs target-libgloss ${libgcj}" ;; vax-*-vms) noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}" ;; vax-*-*) noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}" ;; xtensa-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; ip2k-*-*) noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}" ;; *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu) noconfigdirs="$noconfigdirs target-newlib target-libgloss" ;; *-*-lynxos*) noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}" ;; *-*-*) noconfigdirs="$noconfigdirs ${libgcj}" ;; esac # If we aren't building newlib, then don't build libgloss, since libgloss # depends upon some newlib header files. case "${noconfigdirs}" in *target-libgloss*) ;; 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Always use GCC tentative_cc="/usr/cygnus/progressive/bin/gcc" host_makefile_frag="config/mh-lynxrs6k" ;; powerpc-*-darwin*) host_makefile_frag="config/mh-ppc-darwin" ;; *-*-lynxos*) # /bin/cc is less than useful for our purposes. Always use GCC tentative_cc="/bin/gcc" ;; *-*-sysv4*) host_makefile_frag="config/mh-sysv4" ;; esac fi # If we aren't going to be using gcc, see if we can extract a definition # of CC from the fragment. # Actually, use the 'pre-extracted' version above. if test -z "${CC}" && test "${build}" = "${host}" ; then IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:" found= for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/gcc; then found=yes break fi done IFS="$save_ifs" if test -z "${found}" && test -n "${tentative_cc}" ; then CC=$tentative_cc fi fi if test "${build}" != "${host}" ; then # If we are doing a Canadian Cross, in which the host and build systems # are not the same, we set reasonable default values for the tools. CC=${CC-${host_alias}-gcc} CFLAGS=${CFLAGS-"-g -O2"} CXX=${CXX-${host_alias}-c++} CXXFLAGS=${CXXFLAGS-"-g -O2"} CC_FOR_BUILD=${CC_FOR_BUILD-gcc} CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc} CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++} GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj} GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}} BUILD_PREFIX=${build_alias}- BUILD_PREFIX_1=${build_alias}- else # Set reasonable default values for some tools even if not Canadian. # Of course, these are different reasonable default values, originally # specified directly in the Makefile. # We don't export, so that autoconf can do its job. # Note that all these settings are above the fragment inclusion point # in Makefile.in, so can still be overridden by fragments. # This is all going to change when we autoconfiscate... CC_FOR_BUILD="\$(CC)" GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)" BUILD_PREFIX= BUILD_PREFIX_1=loser- AC_PROG_CC # We must set the default linker to the linker used by gcc for the correct # operation of libtool. If LD is not defined and we are using gcc, try to # set the LD default to the ld used by gcc. if test -z "$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 CXX=${CXX-"c++"} CFLAGS=${CFLAGS-"-g"} CXXFLAGS=${CXXFLAGS-"-g -O2"} fi ACX_PROG_GNAT ACX_PROG_CMP_IGNORE_INITIAL # Check for GMP and MPFR gmplibs= gmpinc= have_gmp=yes # Specify a location for mpfr # check for this first so it ends up on the link line before gmp. AC_ARG_WITH(mpfr-dir, [ --with-mpfr-dir=PATH Specify source directory for MPFR library]) if test "x$with_mpfr_dir" != x; then gmpinc="-I$with_mpfr_dir/mpfr" gmplibs="$with_mpfr_dir/libmpfr.a" else gmplibs="-lmpfr" fi AC_ARG_WITH(mpfr, [ --with-mpfr=PATH Specify directory for installed MPFR library]) if test "x$with_mpfr" != x; then gmplibs="-L$with_mpfr/lib $gmplibs" gmpinc="-I$with_mpfr/include" fi # Specify a location for gmp AC_ARG_WITH(gmp-dir, [ --with-gmp-dir=PATH Specify source directory for GMP library]) if test "x$with_gmp_dir" != x; then gmpinc="$gmpinc -I$with_gmp_dir" if test -f "$with_gmp_dir/.libs/libgmp.a"; then gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a" elif test -f "$with_gmp_dir/_libs/libgmp.a"; then gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a" fi # One of the later tests will catch the error if neither library is present. else gmplibs="$gmplibs -lgmp" fi AC_ARG_WITH(gmp, [ --with-gmp=PATH Specify directory for installed GMP library]) if test "x$with_gmp" != x; then gmplibs="-L$with_gmp/lib $gmplibs" gmpinc="-I$with_gmp/include $gmpinc" fi saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $gmpinc" # Check GMP actually works AC_MSG_CHECKING([for correct version of gmp.h]) AC_TRY_COMPILE([#include "gmp.h"],[ #if __GNU_MP_VERSION < 3 choke me #endif ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) if test x"$have_gmp" = xyes; then AC_MSG_CHECKING([for MPFR]) saved_LIBS="$LIBS" LIBS="$LIBS $gmplibs" AC_TRY_LINK([#include #include ], [mpfr_t n; mpfr_init(n);], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no]) LIBS="$saved_LIBS" CFLAGS="$saved_CFLAGS" fi # Flags needed for both GMP and/or MPFR AC_SUBST(gmplibs) AC_SUBST(gmpinc) # By default, C is the only stage 1 language. stage1_languages=c AC_SUBST(stage1_languages) # Figure out what language subdirectories are present. # Look if the user specified --enable-languages="..."; if not, use # the environment variable $LANGUAGES if defined. $LANGUAGES might # go away some day. # NB: embedded tabs in this IF block -- do not untabify if test -d ${srcdir}/gcc; then if test x"${enable_languages+set}" != xset; then if test x"${LANGUAGES+set}" = xset; then enable_languages="${LANGUAGES}" echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2 else enable_languages=all fi else if test x"${enable_languages}" = x || test x"${enable_languages}" = xyes; then echo configure.in: --enable-languages needs at least one language argument 1>&2 exit 1 fi fi enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'` # First scan to see if an enabled language requires some other language. # We assume that a given config-lang.in will list all the language # front ends it requires, even if some are required indirectly. for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do case ${lang_frag} in ..) ;; # The odd quoting in the next line works around # an apparent bug in bash 1.12 on linux. ${srcdir}/gcc/[[*]]/config-lang.in) ;; *) # From the config-lang.in, get $language, $lang_requires language= lang_requires= . ${lang_frag} for other in ${lang_requires} ; do case ,${enable_languages}, in *,$other,*) ;; *,all,*) ;; *,$language,*) echo " \`$other' language required by \`$language'; enabling" 1>&2 enable_languages="${enable_languages},${other}" ;; esac done ;; esac done new_enable_languages=c missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ ` potential_languages=c for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do case ${lang_frag} in ..) ;; # The odd quoting in the next line works around # an apparent bug in bash 1.12 on linux. ${srcdir}/gcc/[[*]]/config-lang.in) ;; *) # From the config-lang.in, get $language, $target_libs, # $lang_dirs, $boot_language, and $build_by_default language= target_libs= lang_dirs= boot_language= build_by_default= need_gmp= . ${lang_frag} potential_languages="${potential_languages},${language}" # This is quite sensitive to the ordering of the case statement arms. case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in *::*:*) echo "${lang_frag} doesn't set \$language." 1>&2 exit 1 ;; *:ada:no:*) # Ada was requested with no preexisting GNAT. Disable unconditionally. add_this_lang=no ;; *,${language},*:*:*:*) # Language was explicitly selected; include it. add_this_lang=yes ;; *,all,*:*:*:no) # 'all' was selected, but this is not a default language # so do not include it. add_this_lang=no ;; *,all,*:*:*:*) # 'all' was selected and this is a default language; include it. add_this_lang=yes ;; *) add_this_lang=no ;; esac # Disable languages that need GMP if it isn't available. case ,${enable_languages},:${have_gmp}:${need_gmp} in *,${language},*:no:yes) # Specifically requested language; tell them. AC_MSG_ERROR([GMP with MPFR support is required to build $language]) ;; *:no:yes) # Silently disable. add_this_lang=no ;; esac case $add_this_lang in no) # Remove language-dependent dirs. eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\" ;; *) new_enable_languages="$new_enable_languages,$language" missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"` case ${boot_language} in yes) # Add to (comma-separated) list of stage 1 languages. stage1_languages="${stage1_languages},${language}" ;; esac ;; esac ;; esac done missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"` if test "x$missing_languages" != x; then AC_MSG_ERROR([ The following requested languages were not found: ${missing_languages} The available languages are: ${potential_languages}]) fi if test "x$new_enable_languages" != "x$enable_languages"; then echo The following languages will be built: ${new_enable_languages} fi enable_languages="$new_enable_languages" ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ ` fi # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and # $target_configdirs. # If we have the source for $noconfigdirs entries, add them to $notsupp. notsupp="" for dir in . $skipdirs $noconfigdirs ; do dirname=`echo $dir | sed -e s/target-//g` if test $dir != . && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"` if test -r $srcdir/$dirname/configure ; then if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then true else notsupp="$notsupp $dir" fi fi fi if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"` if test -r $srcdir/$dirname/configure ; then if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then true else notsupp="$notsupp $dir" fi fi fi done # Sometimes the tools are distributed with libiberty but with no other # libraries. In that case, we don't want to build target-libiberty. if test -n "${target_configdirs}" ; then others= for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do if test "$i" != "libiberty" ; then if test -r $srcdir/$i/configure ; then others=yes; break; fi fi done if test -z "${others}" ; then target_configdirs= fi fi # Quietly strip out all directories which aren't configurable in this tree. # This relies on all configurable subdirectories being autoconfiscated, which # is now the case. build_configdirs_all="$build_configdirs" build_configdirs= for i in ${build_configdirs_all} ; do j=`echo $i | sed -e s/build-//g` if test -f ${srcdir}/$j/configure ; then build_configdirs="${build_configdirs} $i" fi done configdirs_all="$configdirs" configdirs= for i in ${configdirs_all} ; do if test -f ${srcdir}/$i/configure ; then configdirs="${configdirs} $i" fi done target_configdirs_all="$target_configdirs" target_configdirs= for i in ${target_configdirs_all} ; do j=`echo $i | sed -e s/target-//g` if test -f ${srcdir}/$j/configure ; then target_configdirs="${target_configdirs} $i" fi done # Produce a warning message for the subdirs we can't configure. # This isn't especially interesting in the Cygnus tree, but in the individual # FSF releases, it's important to let people know when their machine isn't # supported by the one or two programs in a package. if test -n "${notsupp}" && test -z "${norecursion}" ; then # If $appdirs is non-empty, at least one of those directories must still # be configured, or we error out. (E.g., if the gas release supports a # specified target in some subdirs but not the gas subdir, we shouldn't # pretend that all is well.) if test -n "$appdirs" ; then for dir in $appdirs ; do if test -r $dir/Makefile.in ; then if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then appdirs="" break fi if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then appdirs="" break fi fi done if test -n "$appdirs" ; then echo "*** This configuration is not supported by this package." 1>&2 exit 1 fi fi # Okay, some application will build, or we don't care to check. Still # notify of subdirs not getting built. echo "*** This configuration is not supported in the following subdirectories:" 1>&2 echo " ${notsupp}" 1>&2 echo " (Any other directories should still work fine.)" 1>&2 fi case "$host" in *msdosdjgpp*) enable_gdbtk=no ;; esac copy_dirs= # Handle --with-headers=XXX. If the value is not "yes", the contents of # the named directory are copied to $(tooldir)/sys-include. if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then if test x${is_cross_compiler} = xno ; then echo 1>&2 '***' --with-headers is only supported when cross compiling exit 1 fi if test x"${with_headers}" != xyes ; then case "${exec_prefixoption}" in "") x=${prefix} ;; *) x=${exec_prefix} ;; esac copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include" fi fi # Handle --with-libs=XXX. If the value is not "yes", the contents of # the name directories are copied to $(tooldir)/lib. 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Not all systems support it. (cd $1; tar -cf - .) | (cd $2; tar -xpf -) # It is the responsibility of the user to correctly adjust all # symlinks. If somebody can figure out how to handle them correctly # here, feel free to add the code. echo $1 > $2/COPIED fi shift; shift done extra_arflags_for_target= extra_nmflags_for_target= extra_ranlibflags_for_target= target_makefile_frag=/dev/null case "${target}" in *-*-netware*) target_makefile_frag="config/mt-netware" ;; *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu) target_makefile_frag="config/mt-gnu" ;; *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*) # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm # commands to handle both 32-bit and 64-bit objects. 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AC_SUBST(build_configargs) AC_SUBST(build_configdirs) # Host module lists & subconfigure args. AC_SUBST(host_configargs) AC_SUBST(configdirs) # Target module lists & subconfigure args. AC_SUBST(target_configargs) AC_SUBST(target_configdirs) # Build tools. AC_SUBST(CC_FOR_BUILD) AC_SUBST(config_shell) # Host tools. NCN_STRICT_CHECK_TOOL(AR, ar) NCN_STRICT_CHECK_TOOL(AS, as) NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool) NCN_STRICT_CHECK_TOOL(LD, ld) NCN_STRICT_CHECK_TOOL(NM, nm) NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :) NCN_STRICT_CHECK_TOOL(WINDRES, windres) NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy) NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump) AC_SUBST(CC) AC_SUBST(CXX) AC_SUBST(CFLAGS) AC_SUBST(CFLAGS_FOR_BUILD) AC_SUBST(CXXFLAGS) # Target tools. 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The new build scheme, where # tools are built into a structure paralleling where they're installed, # should also eliminate all of this cleanly. AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)" AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)" DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)" LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)" NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)" RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)" WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)" else # Just use the ones we found. AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)" AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)" DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)" LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)" NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)" RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)" WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)" fi AC_SUBST(AR_FOR_TARGET) AC_SUBST(AS_FOR_TARGET) AC_SUBST(DLLTOOL_FOR_TARGET) AC_SUBST(LD_FOR_TARGET) AC_SUBST(NM_FOR_TARGET) AC_SUBST(RANLIB_FOR_TARGET) AC_SUBST(WINDRES_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} AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) AC_ARG_ENABLE(maintainer-mode, [ --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 ${GCC} in yes) stage1_cflags="-g -Wa,-J" ;; *) stage1_cflags="-g -J" ;; esac ;; powerpc-*-darwin*) # The spiffy cpp-precomp chokes on some legitimate constructs in GCC # sources; use -no-cpp-precomp to get to GNU cpp. # Apple's GCC has bugs in designated initializer handling, so disable # that too. stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0" ;; esac AC_SUBST(stage1_cflags) # It makes debugging easier if we create as symlinks the stage directories # gcc for stageN-gcc and stagePREV-gcc for stage(N-1). In case this is not # possible, however, we can resort to mv. AC_CACHE_CHECK([if symbolic links between directories work], [gcc_cv_prog_ln_s_dir], [if test "${LN_S}" = "ln -s" \ && mkdir confdir.s1 \ && ln -s confdir.s1 confdir.s2 \ && echo timestamp1 > confdir.s1/conftest.1 \ && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \ && echo timestamp2 > confdir.s2/conftest.2 \ && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \ && rm -f confdir.s2; then gcc_cv_prog_ln_s_dir=yes else gcc_cv_prog_ln_s_dir=yes fi rm -rf confdir.s1 confdir.s2]) case ${gcc_cv_prog_ln_s_dir} in yes) CREATE_LINK_TO_DIR='ln -s $$1 $$2' UNDO_LINK_TO_DIR='rm -f $$1' ;; *) CREATE_LINK_TO_DIR='mv $$1 $$2' UNDO_LINK_TO_DIR='mv $$1 $$2' ;; esac AC_SUBST(CREATE_LINK_TO_DIR) AC_SUBST(UNDO_LINK_TO_DIR) # Enable -Werror in bootstrap stage2 and later. # Change the default to "no" on release branches. AC_ARG_ENABLE(werror, [ --enable-werror enable -Werror in bootstrap stage2 and later], [], [enable_werror=yes]) case ${enable_werror} in yes) stage2_werror_flag="--enable-werror-always" ;; *) stage2_werror_flag="" ;; esac AC_SUBST(stage2_werror_flag) AC_OUTPUT(Makefile)