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binutils-gdb/configure.ac
Andrew Burgess d33228c946 top-level configure: setup target_configdirs based on repository 
The top-level configure script is shared between the gcc repository
and the binutils-gdb repository.

The target_configdirs variable in the configure.ac script, defines
sub-directories that contain components that should be built for the
target using the target tools.

Some components, e.g. zlib, are built as both host and target
libraries.

This causes problems for binutils-gdb.  If we run 'make all' in the
binutils-gdb repository we end up trying to build a target version of
the zlib library, which requires the target compiler be available.
Often the target compiler isn't immediately available, and so the
build fails.

The problem with zlib impacted a previous attempt to synchronise the
top-level configure scripts from gcc to binutils-gdb, see this thread:

  https://sourceware.org/pipermail/binutils/2019-May/107094.html

And I'm in the process of importing libbacktrace in to binutils-gdb,
which is also a host and target library, and triggers the same issues.

I believe that for binutils-gdb, at least at the moment, there are no
target libraries that we need to build.

In the configure script we build three lists of things we want to
build, $configdirs, $build_configdirs, and $target_configdirs, we also
build two lists of things we don't want to build, $skipdirs and
$noconfigdirs.  We then remove anything that is in the lists of things
not to build, from the list of things that should be built.

My proposal is to add everything in target_configdirs into skipdirs,
if the source tree doesn't contain a gcc/ sub-directory.  The result
is that for binutils-gdb no target tools or libraries will be built,
while for the gcc repository, nothing should change.

If a user builds a unified source tree, then the target tools and
libraries should still be built as the gcc/ directory will be present.

I've tested a build of gcc on x86-64, and the same set of target
libraries still seem to get built.  On binutils-gdb this change
resolves the issues with 'make all'.

ChangeLog:

	* configure: Regenerate.
	* configure.ac (skipdirs): Add the contents of target_configdirs if
	we are not building gcc.
2021-09-28 12:21:21 +01:00

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# 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, 2020 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
# <http://www.gnu.org/licenses/>.
##############################################################################
### 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/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(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_SYSTEM
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_SYSTEM
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="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libbacktrace libcpp libdecnumber gmp mpfr mpc isl libelf libiconv libctf"
# 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 gotools"
# 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-liboffloadmic \
target-libhsail-rt \
target-libatomic \
target-libitm \
target-libstdc++-v3 \
target-libsanitizer \
target-libvtv \
target-libssp \
target-libquadmath \
target-libgfortran \
target-libffi \
target-libobjc \
target-libada \
target-libgo"
# 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.
GCC_TOPLEV_SUBDIRS
# Be sure to cover against remnants of an in-tree build.
if test $srcdir != . && test -d $srcdir/host-${host_noncanonical}; then
AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
Use a pristine source tree when building in a separate tree])
fi
# 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 gold"
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
use_included_zlib=
AC_ARG_WITH(system-zlib,
[AS_HELP_STRING([--with-system-zlib], [use installed libz])])
# Make sure we don't let ZLIB be added if we didn't want it.
if test x$with_system_zlib = xyes ; then
use_included_zlib=no
noconfigdirs="$noconfigdirs zlib"
fi
# Don't compile the bundled readline/libreadline.a if --with-system-readline
# is provided.
if test x$with_system_readline = xyes ; then
noconfigdirs="$noconfigdirs readline"
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 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}" ;;
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
AC_ARG_ENABLE(as-accelerator-for,
[AS_HELP_STRING([--enable-as-accelerator-for=ARG],
[build as offload target compiler.
Specify offload host triple by ARG])])
AC_ARG_ENABLE(offload-targets,
[AS_HELP_STRING([--enable-offload-targets=LIST],
[enable offloading to devices from comma-separated LIST of
TARGET[=DIR]. Use optional path to find offload target compiler
during the build])],
[
if test x"$enable_offload_targets" = x; then
AC_MSG_ERROR([no offload targets specified])
fi
], [enable_offload_targets=])
# Handle --enable-gold, --enable-ld.
# --disable-gold [--enable-ld]
# Build only ld. Default option.
# --enable-gold [--enable-ld]
# Build both gold and ld. Install gold as "ld.gold", install ld
# as "ld.bfd" and "ld".
# --enable-gold=default [--enable-ld]
# Build both gold and ld. 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*-*-*)
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
# 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=])
# 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
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(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]
# If this is accelerator compiler and its target is intelmic we enable
# target liboffloadmic by default. If this is compiler with offloading
# for intelmic we enable host liboffloadmic by default. Otherwise
# liboffloadmic is disabled by default.
AC_ARG_ENABLE([liboffloadmic],
AC_HELP_STRING([[--enable-liboffloadmic[=ARG]]],
[build liboffloadmic @<:@ARG={no,host,target}@:>@]),
[case "$enableval" in
no | host | target)
enable_liboffloadmic=$enableval ;;
*)
AC_MSG_ERROR([--enable-liboffloadmic=no/host/target]) ;;
esac],
[if test x"$enable_as_accelerator_for" != x; then
case "${target}" in
*-intelmic-* | *-intelmicemul-*)
enable_liboffloadmic=target
extra_liboffloadmic_configure_flags="--enable-liboffloadmic=target"
;;
*)
enable_liboffloadmic=no
;;
esac
else
case "${enable_offload_targets}" in
*-intelmic-* | *-intelmicemul-*)
enable_liboffloadmic=host
extra_liboffloadmic_configure_flags="--enable-liboffloadmic=host"
;;
*)
enable_liboffloadmic=no
;;
esac
fi])
AC_SUBST(extra_liboffloadmic_configure_flags)
# 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*-*-*)
;;
*)
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 liboffloadmic on unsupported systems.
if test -d ${srcdir}/liboffloadmic; then
if test x$enable_liboffloadmic != xno; then
AC_MSG_CHECKING([for liboffloadmic support])
if (srcdir=${srcdir}/liboffloadmic; \
. ${srcdir}/configure.tgt; \
test -n "$UNSUPPORTED")
then
AC_MSG_RESULT([no])
noconfigdirs="$noconfigdirs target-liboffloadmic"
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; \
. ${srcdir}/configure.tgt; \
test "$VTV_SUPPORTED" != "yes")
then
AC_MSG_RESULT([no])
noconfigdirs="$noconfigdirs target-libvtv"
else
AC_MSG_RESULT([yes])
fi
fi
fi
# Disable libhsail-rt on unsupported systems.
if test -d ${srcdir}/libhsail-rt; then
if test x$enable_libhsail_rt = x; then
AC_MSG_CHECKING([for libhsail-rt support])
if (srcdir=${srcdir}/libhsail-rt; \
. ${srcdir}/configure.tgt; \
test -n "$UNSUPPORTED")
then
AC_MSG_RESULT([no])
unsupported_languages="$unsupported_languages brig"
# This implicitly disables also target-libhsail-rt as it won't
# get added to the build without BRIG FE.
else
AC_MSG_RESULT([yes])
fi
fi
fi
# Disable libquadmath for some systems.
case "${target}" in
avr-*-*)
noconfigdirs="$noconfigdirs target-libquadmath"
;;
# libquadmath is unused on AIX and libquadmath build process use of
# LD_LIBRARY_PATH can break AIX bootstrap.
powerpc-*-aix* | rs6000-*-aix*)
noconfigdirs="$noconfigdirs target-libquadmath"
;;
esac
# Disable libssp for some systems.
case "${target}" in
avr-*-*)
# No hosted I/O support.
noconfigdirs="$noconfigdirs target-libssp"
;;
powerpc-*-aix* | rs6000-*-aix*)
noconfigdirs="$noconfigdirs target-libssp"
;;
rl78-*-*)
# libssp uses a misaligned load to trigger a fault, but the RL78
# doesn't fault for those - instead, it gives a build-time error
# for explicit misaligned loads.
noconfigdirs="$noconfigdirs target-libssp"
;;
visium-*-*)
# No hosted I/O support.
noconfigdirs="$noconfigdirs target-libssp"
;;
esac
# Disable libstdc++-v3 for some systems.
# Allow user to override this if they pass --enable-libstdc++-v3
if test "${ENABLE_LIBSTDCXX}" = "default" ; then
case "${target}" in
*-*-vxworks*)
# VxWorks uses the Dinkumware C++ library.
noconfigdirs="$noconfigdirs target-libstdc++-v3"
;;
arm*-wince-pe*)
# the C++ libraries don't build on top of CE's C libraries
noconfigdirs="$noconfigdirs target-libstdc++-v3"
;;
avr-*-*)
noconfigdirs="$noconfigdirs target-libstdc++-v3"
;;
ft32-*-*)
noconfigdirs="$noconfigdirs target-libstdc++-v3"
;;
esac
fi
# Disable Fortran for some systems.
case "${target}" in
mmix-*-*)
# See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
unsupported_languages="$unsupported_languages fortran"
;;
esac
# Disable libffi for some systems.
case "${target}" in
powerpc-*-darwin*)
;;
i[[3456789]]86-*-darwin*)
;;
x86_64-*-darwin[[912]]*)
;;
*-*-darwin*)
noconfigdirs="$noconfigdirs target-libffi"
;;
*-*-netware*)
noconfigdirs="$noconfigdirs target-libffi"
;;
*-*-phoenix*)
noconfigdirs="$noconfigdirs target-libffi"
;;
*-*-rtems*)
noconfigdirs="$noconfigdirs target-libffi"
;;
*-*-tpf*)
noconfigdirs="$noconfigdirs target-libffi"
;;
*-*-uclinux*)
noconfigdirs="$noconfigdirs target-libffi"
;;
*-*-vxworks*)
noconfigdirs="$noconfigdirs target-libffi"
;;
aarch64*-*-freebsd*)
noconfigdirs="$noconfigdirs target-libffi"
;;
alpha*-*-*vms*)
noconfigdirs="$noconfigdirs target-libffi"
;;
arm*-*-freebsd*)
noconfigdirs="$noconfigdirs target-libffi"
;;
arm-wince-pe)
noconfigdirs="$noconfigdirs target-libffi"
;;
cris-*-* | crisv32-*-*)
case "${target}" in
*-*-linux*)
;;
*) # 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. Please keep
# this in sync with contrib/config-list.mk.
case "${target}" in
*-*-darwin* | *-*-cygwin* | *-*-mingw*)
unsupported_languages="$unsupported_languages go"
;;
esac
# Only allow gdbserver on some systems.
if test -d ${srcdir}/gdbserver; then
if test x$enable_gdbserver = x; then
AC_MSG_CHECKING([for gdbserver support])
if (srcdir=${srcdir}/gdbserver; \
. ${srcdir}/configure.srv; \
test -n "$UNSUPPORTED")
then
AC_MSG_RESULT([no])
noconfigdirs="$noconfigdirs gdbserver"
else
AC_MSG_RESULT([yes])
fi
fi
fi
# Disable libgo for some systems where it is known to not work.
# For testing, you can easily override this with --enable-libgo.
if test x$enable_libgo = x; then
case "${target}" in
*-*-darwin*)
# PR 46986
noconfigdirs="$noconfigdirs target-libgo"
;;
*-*-cygwin* | *-*-mingw*)
noconfigdirs="$noconfigdirs target-libgo"
;;
esac
fi
# Default libgloss CPU subdirectory.
libgloss_dir="$target_cpu"
case "${target}" in
sh*-*-pe|mips*-*-pe|*arm-wince-pe)
libgloss_dir=wince
;;
aarch64*-*-* )
libgloss_dir=aarch64
;;
arm*-*-*)
libgloss_dir=arm
;;
cris-*-* | crisv32-*-*)
libgloss_dir=cris
;;
hppa*-*-*)
libgloss_dir=pa
;;
i[[3456789]]86-*-*)
libgloss_dir=i386
;;
m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
libgloss_dir=m68hc11
;;
m68*-*-* | fido-*-*)
libgloss_dir=m68k
;;
mips*-*-*)
libgloss_dir=mips
;;
powerpc*-*-*)
libgloss_dir=rs6000
;;
sparc*-*-*)
libgloss_dir=sparc
;;
esac
# Disable newlib and libgloss for various target OSes.
case "${target}" in
alpha*-dec-osf*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
i[[3456789]]86-*-linux*)
# 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-*-rdos*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
sh*-*-pe|mips*-*-pe|arm-wince-pe)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
sparc-*-sunos4*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-aix*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-beos*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-chorusos)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-dragonfly*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-freebsd*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-lynxos*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-mingw*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-netbsd*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-netware*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-tpf*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-uclinux*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
*-*-vxworks*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
esac
case "${target}" in
*-*-chorusos)
;;
aarch64-*-darwin*)
noconfigdirs="$noconfigdirs ld gas gdb gprof"
noconfigdirs="$noconfigdirs sim target-rda"
;;
arm-*-darwin*)
noconfigdirs="$noconfigdirs ld gas gdb gprof"
noconfigdirs="$noconfigdirs sim target-rda"
;;
powerpc-*-darwin*)
noconfigdirs="$noconfigdirs ld gas gdb gprof"
noconfigdirs="$noconfigdirs sim target-rda"
;;
i[[3456789]]86-*-darwin*)
noconfigdirs="$noconfigdirs ld gprof"
noconfigdirs="$noconfigdirs sim target-rda"
;;
x86_64-*-darwin[[912]]*)
noconfigdirs="$noconfigdirs ld gas gprof"
noconfigdirs="$noconfigdirs sim target-rda"
;;
*-*-darwin*)
noconfigdirs="$noconfigdirs ld gas gdb gprof"
noconfigdirs="$noconfigdirs sim target-rda"
;;
*-*-dragonfly*)
;;
*-*-freebsd*)
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
;;
*-*-kaos*)
# Remove unsupported stuff on all kaOS configurations.
noconfigdirs="$noconfigdirs target-libgloss"
;;
*-*-netbsd*)
;;
*-*-netware*)
;;
*-*-phoenix*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
*-*-rtems*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
# The tpf target doesn't support gdb yet.
*-*-tpf*)
noconfigdirs="$noconfigdirs gdb tcl tk libgui itcl"
;;
*-*-uclinux*)
noconfigdirs="$noconfigdirs target-rda"
;;
*-*-vxworks*)
;;
alpha*-dec-osf*)
# ld works, but does not support shared libraries.
# gas doesn't generate exception information.
noconfigdirs="$noconfigdirs gas ld"
;;
alpha*-*-*vms*)
noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
;;
alpha*-*-*)
# newlib is not 64 bit ready
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
sh*-*-pe|mips*-*-pe|*arm-wince-pe)
noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
;;
arc*-*-*)
noconfigdirs="$noconfigdirs sim"
;;
arm-*-pe*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
arm-*-riscix*)
noconfigdirs="$noconfigdirs ld target-libgloss"
;;
avr-*-*)
if test x${with_avrlibc} != xno; then
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
fi
;;
c4x-*-* | tic4x-*-*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
tic54x-*-*)
noconfigdirs="$noconfigdirs target-libgloss gdb"
;;
d10v-*-*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
d30v-*-*)
noconfigdirs="$noconfigdirs gdb"
;;
fr30-*-elf*)
noconfigdirs="$noconfigdirs gdb"
;;
ft32-*-*)
noconfigdirs="$noconfigdirs target-rda gprof"
;;
moxie-*-*)
noconfigdirs="$noconfigdirs"
;;
h8300*-*-*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
h8500-*-*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
hppa1.1-*-osf* | hppa1.1-*-bsd* )
;;
hppa*64*-*-hpux*)
noconfigdirs="$noconfigdirs gdb"
;;
hppa*-*-hpux11*)
noconfigdirs="$noconfigdirs gdb ld"
;;
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"
;;
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"
;;
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-hpux10*)
host_makefile_frag="config/mh-pa-hpux10"
;;
hppa*-hp-hpux*)
host_makefile_frag="config/mh-pa"
;;
hppa*-*)
host_makefile_frag="config/mh-pa"
;;
*-*-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}
CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
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)"
GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
GOC_FOR_BUILD="\$(GOC)"
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_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++98 mode to ensure that a
# C++98 compiler can still start the bootstrap.
if test "$enable_bootstrap:$GXX" = "yes:yes"; then
CXX="$CXX -std=gnu++98"
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
gmplibs="-lmpc -lmpfr -lgmp"
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$$s/mpc/src '"$gmpinc"
# Do not test the mpc version. Assume that it is sufficient, since
# it is in the source tree, and the library has not been built yet
# but it would be included on the link line in the version check below
# hence making the test fail.
have_gmp=yes
fi
# Specify a location for mpfr
# check for this first so it ends up on the link line before gmp.
AC_ARG_WITH(mpfr-dir,
[AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
[AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
AC_ARG_WITH(mpfr,
[AS_HELP_STRING([--with-mpfr=PATH],
[specify prefix directory for installed MPFR package.
Equivalent to --with-mpfr-include=PATH/include
plus --with-mpfr-lib=PATH/lib])])
AC_ARG_WITH(mpfr-include,
[AS_HELP_STRING([--with-mpfr-include=PATH],
[specify directory for installed MPFR include files])])
AC_ARG_WITH(mpfr-lib,
[AS_HELP_STRING([--with-mpfr-lib=PATH],
[specify directory for the installed MPFR library])])
if test "x$with_mpfr" != x; then
gmplibs="-L$with_mpfr/lib $gmplibs"
gmpinc="-I$with_mpfr/include $gmpinc"
fi
if test "x$with_mpfr_include" != x; then
gmpinc="-I$with_mpfr_include $gmpinc"
fi
if test "x$with_mpfr_lib" != x; then
gmplibs="-L$with_mpfr_lib $gmplibs"
fi
if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
# MPFR v3.1.0 moved the sources into a src sub-directory.
if ! test -d ${srcdir}/mpfr/src; then
AC_MSG_ERROR([dnl
Building GCC with MPFR in the source tree is only handled for MPFR 3.1.0+.])
fi
gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
# Do not test the mpfr 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 gmp
AC_ARG_WITH(gmp-dir,
[AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
[AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
AC_ARG_WITH(gmp,
[AS_HELP_STRING([--with-gmp=PATH],
[specify prefix directory for the installed GMP package.
Equivalent to --with-gmp-include=PATH/include
plus --with-gmp-lib=PATH/lib])])
AC_ARG_WITH(gmp-include,
[AS_HELP_STRING([--with-gmp-include=PATH],
[specify directory for installed GMP include files])])
AC_ARG_WITH(gmp-lib,
[AS_HELP_STRING([--with-gmp-lib=PATH],
[specify directory for the installed GMP library])])
if test "x$with_gmp" != x; then
gmplibs="-L$with_gmp/lib $gmplibs"
gmpinc="-I$with_gmp/include $gmpinc"
fi
if test "x$with_gmp_include" != x; then
gmpinc="-I$with_gmp_include $gmpinc"
fi
if test "x$with_gmp_lib" != x; then
gmplibs="-L$with_gmp_lib $gmplibs"
fi
if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
extra_isl_gmp_configure_flags='--with-gmp-builddir=$$r/$(HOST_SUBDIR)/gmp'
# Do not test the gmp 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
if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
have_gmp=yes
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $gmpinc"
# Check for the recommended and required versions of GMP.
AC_MSG_CHECKING([for the correct version of gmp.h])
AC_TRY_COMPILE([#include "gmp.h"],[
#define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
#define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
#if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
choke me
#endif
], [AC_TRY_COMPILE([#include <gmp.h>],[
#define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
#define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
#if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
choke me
#endif
], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
[AC_MSG_RESULT([no]); have_gmp=no])
# If we have GMP, check the MPFR version.
if test x"$have_gmp" = xyes; then
# Check for the recommended and required versions of MPFR.
AC_MSG_CHECKING([for the correct version of mpfr.h])
AC_TRY_COMPILE([#include <gmp.h>
#include <mpfr.h>],[
#if MPFR_VERSION < MPFR_VERSION_NUM(2,4,0)
choke me
#endif
], [AC_TRY_COMPILE([#include <gmp.h>
#include <mpfr.h>],[
#if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
choke me
#endif
], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
[AC_MSG_RESULT([no]); have_gmp=no])
fi
# Check for the MPC header version.
if test x"$have_gmp" = xyes ; then
# Check for the recommended and required versions of MPC.
AC_MSG_CHECKING([for the correct version of mpc.h])
AC_TRY_COMPILE([#include <mpc.h>],[
#if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
choke me
#endif
], [AC_TRY_COMPILE([#include <mpc.h>],[
#if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
choke me
#endif
], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
[AC_MSG_RESULT([no]); have_gmp=no])
fi
# Now check the MPFR library.
if test x"$have_gmp" = xyes; then
saved_LIBS="$LIBS"
LIBS="$LIBS $gmplibs"
AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
AC_TRY_LINK([#include <mpc.h>],[
mpfr_t n;
mpfr_t x;
mpc_t c;
int t;
mpfr_init (n);
mpfr_init (x);
mpfr_atan2 (n, n, x, GMP_RNDN);
mpfr_erfc (n, x, GMP_RNDN);
mpfr_subnormalize (x, t, GMP_RNDN);
mpfr_clear(n);
mpfr_clear(x);
mpc_init2 (c, 53);
mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
mpc_cosh (c, c, MPC_RNDNN);
mpc_pow (c, c, c, MPC_RNDNN);
mpc_acosh (c, c, MPC_RNDNN);
mpc_clear (c);
], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
LIBS="$saved_LIBS"
fi
CFLAGS="$saved_CFLAGS"
# The library versions listed in the error message below should match
# the HARD-minimums enforced above.
if test x$have_gmp != xyes; then
AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
their locations. Source code for these libraries can be found at
their respective hosting sites as well as at
ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also
http://gcc.gnu.org/install/prerequisites.html for additional info. If
you obtained GMP, MPFR and/or MPC from a vendor distribution package,
make sure that you have installed both the libraries and the header
files. They may be located in separate packages.])
fi
fi
# Flags needed for both GMP, MPFR and/or MPC.
AC_SUBST(gmplibs)
AC_SUBST(gmpinc)
AC_SUBST(extra_mpfr_configure_flags)
AC_SUBST(extra_mpc_gmp_configure_flags)
AC_SUBST(extra_mpc_mpfr_configure_flags)
AC_SUBST(extra_isl_gmp_configure_flags)
# Libraries to use for stage1 or when not bootstrapping.
AC_ARG_WITH(stage1-libs,
[AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
[if test "$withval" = "no" -o "$withval" = "yes"; then
stage1_libs=
else
stage1_libs=$withval
fi],
[stage1_libs=])
AC_SUBST(stage1_libs)
# Whether or not to use -static-libstdc++ and -static-libgcc. The
# default is yes if gcc is being built; no otherwise. The reason for
# this default is that gdb is sometimes linked against GNU Source
# Highlight, which is a shared library that uses C++ exceptions. In
# this case, -static-libstdc++ will cause crashes.
AC_ARG_WITH(static-standard-libraries,
[AS_HELP_STRING([--with-static-standard-libraries],
[use -static-libstdc++ and -static-libgcc (default=auto)])],
[], [with_static_standard_libraries=auto])
if test "$with_static_standard_libraries" = auto; then
with_static_standard_libraries=$have_compiler
fi
# Linker flags to use for stage1 or when not bootstrapping.
AC_ARG_WITH(stage1-ldflags,
[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
[if test "$withval" = "no" -o "$withval" = "yes"; then
stage1_ldflags=
else
stage1_ldflags=$withval
fi],
[stage1_ldflags=
# In stage 1, default to linking libstdc++ and libgcc statically with GCC
# if supported. But if the user explicitly specified the libraries to use,
# trust that they are doing what they want.
if test "$with_static_standard_libraries" = yes -a "$stage1_libs" = "" \
-a "$have_static_libs" = yes; then
stage1_ldflags="-static-libstdc++ -static-libgcc"
fi])
AC_SUBST(stage1_ldflags)
# Libraries to use for stage2 and later builds.
AC_ARG_WITH(boot-libs,
[AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
[if test "$withval" = "no" -o "$withval" = "yes"; then
poststage1_libs=
else
poststage1_libs=$withval
fi],
[poststage1_libs=])
AC_SUBST(poststage1_libs)
# Linker flags to use for stage2 and later builds.
AC_ARG_WITH(boot-ldflags,
[AS_HELP_STRING([--with-boot-ldflags=FLAGS],
[linker flags for stage2 and later])],
[if test "$withval" = "no" -o "$withval" = "yes"; then
poststage1_ldflags=
else
poststage1_ldflags=$withval
fi],
[poststage1_ldflags=
# In stages 2 and 3, default to linking libstdc++ and libgcc
# statically. But if the user explicitly specified the libraries to
# use, trust that they are doing what they want.
if test "$poststage1_libs" = ""; then
poststage1_ldflags="-static-libstdc++ -static-libgcc"
fi])
AC_SUBST(poststage1_ldflags)
# GCC GRAPHITE dependency isl.
# Basic setup is inlined here, actual checks are in config/isl.m4
AC_ARG_WITH(isl,
[AS_HELP_STRING(
[--with-isl=PATH],
[Specify prefix directory for the installed isl package.
Equivalent to --with-isl-include=PATH/include
plus --with-isl-lib=PATH/lib])])
# Treat --without-isl as a request to disable
# GRAPHITE support and skip all following checks.
if test "x$with_isl" != "xno"; then
# Check for isl
dnl Provide configure switches and initialize islinc & isllibs
dnl with user input.
ISL_INIT_FLAGS
dnl The versions of isl that work for Graphite
ISL_CHECK_VERSION()
dnl Only execute fail-action, if isl has been requested.
ISL_IF_FAILED([
AC_MSG_ERROR([Unable to find a usable isl. See config.log for details.])])
fi
# If the isl check failed, disable builds of in-tree variant of isl
if test "x$with_isl" = xno ||
test "x$gcc_cv_isl" = xno; then
noconfigdirs="$noconfigdirs isl"
islinc=
fi
AC_SUBST(isllibs)
AC_SUBST(islinc)
# Check for LTO support.
AC_ARG_ENABLE(lto,
[AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
enable_lto=$enableval,
enable_lto=yes; default_enable_lto=yes)
ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
build_lto_plugin=yes
],[if test x"$default_enable_lto" = x"yes" ; then
case $target in
*-apple-darwin[[912]]* | *-cygwin* | *-mingw* | *djgpp*) ;;
# On other non-ELF platforms, LTO has yet to be validated.
*) enable_lto=no ;;
esac
else
# Apart from ELF platforms, only Windows and Darwin support LTO so far.
# It would also be nice to check the binutils support, but we don't
# have gcc_GAS_CHECK_FEATURE available here. For now, we'll just
# warn during gcc/ subconfigure; unless you're bootstrapping with
# -flto it won't be needed until after installation anyway.
case $target in
*-cygwin* | *-mingw* | *-apple-darwin* | *djgpp*) ;;
*) if test x"$enable_lto" = x"yes"; then
AC_MSG_ERROR([LTO support is not enabled for this target.])
fi
;;
esac
fi
# Among non-ELF, only Windows platforms support the lto-plugin so far.
# Build it unless LTO was explicitly disabled.
case $target in
*-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
*) ;;
esac
])
AC_ARG_ENABLE(linker-plugin-configure-flags,
[AS_HELP_STRING([[--enable-linker-plugin-configure-flags=FLAGS]],
[additional flags for configuring linker plugins @<:@none@:>@])],
extra_linker_plugin_configure_flags=$enableval,
extra_linker_plugin_configure_flags=)
AC_SUBST(extra_linker_plugin_configure_flags)
AC_ARG_ENABLE(linker-plugin-flags,
[AS_HELP_STRING([[--enable-linker-plugin-flags=FLAGS]],
[additional flags for configuring and building linker plugins @<:@none@:>@])],
extra_linker_plugin_flags=$enableval,
extra_linker_plugin_flags=)
AC_SUBST(extra_linker_plugin_flags)
# Enable --enable-host-shared.
# Checked early to determine whether jit is an 'all' language
AC_ARG_ENABLE(host-shared,
[AS_HELP_STRING([--enable-host-shared],
[build host code as shared libraries])],
[host_shared=$enableval], [host_shared=no])
AC_SUBST(host_shared)
# By default, C and C++ are the only stage 1 languages.
stage1_languages=,c,
# Target libraries that we bootstrap.
bootstrap_target_libs=,target-libgcc,
# 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.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
else
enable_languages=default
fi
else
if test x"${enable_languages}" = x ||
test x"${enable_languages}" = xyes;
then
echo configure.ac: --enable-languages needs at least one language argument 1>&2
exit 1
fi
fi
enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
# 'f95' is the old name for the 'fortran' language. We issue a warning
# and make the substitution.
case ,${enable_languages}, in
*,f95,*)
echo configure.ac: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
;;
esac
# If bootstrapping, C++ must be enabled.
case ",$enable_languages,:$enable_bootstrap" in
*,c++,*:*) ;;
*:yes)
if test -f ${srcdir}/gcc/cp/config-lang.in; then
enable_languages="${enable_languages},c++"
else
AC_MSG_ERROR([bootstrapping requires c++ sources])
fi
;;
esac
# 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, and
# $lang_requires_boot_languages.
language=
lang_requires=
lang_requires_boot_languages=
# set srcdir during sourcing lang_frag to the gcc dir.
# Sadly overriding srcdir on the . line doesn't work in plain sh as it
# polutes this shell
saved_srcdir=${srcdir}
srcdir=${srcdir}/gcc . ${lang_frag}
srcdir=${saved_srcdir}
for other in ${lang_requires} ${lang_requires_boot_languages}; do
case ,${enable_languages}, in
*,$other,*) ;;
*,default,*) ;;
*,all,*) ;;
*,$language,*)
echo " \`$other' language required by \`$language'; enabling" 1>&2
enable_languages="${enable_languages},${other}"
;;
esac
done
for other in ${lang_requires_boot_languages} ; do
if test "$other" != "c"; then
case ,${enable_stage1_languages}, in
*,$other,*) ;;
*,default,*) ;;
*,all,*) ;;
*)
case ,${enable_languages}, in
*,$language,*)
echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
enable_stage1_languages="$enable_stage1_languages,${other}"
;;
esac
;;
esac
fi
done
;;
esac
done
new_enable_languages=,c,
# If LTO is enabled, add the LTO front end.
if test "$enable_lto" = "yes" ; then
case ,${enable_languages}, in
*,lto,*) ;;
*) enable_languages="${enable_languages},lto" ;;
esac
if test "${build_lto_plugin}" = "yes" ; then
configdirs="$configdirs lto-plugin"
fi
fi
# If we're building an offloading compiler, add the LTO front end.
if test x"$enable_as_accelerator_for" != x ; then
case ,${enable_languages}, in
*,lto,*) ;;
*) enable_languages="${enable_languages},lto" ;;
esac
fi
missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
potential_languages=,c,
enabled_target_libs=
disabled_target_libs=
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 $build_by_default
language=
target_libs=
lang_dirs=
subdir_requires=
boot_language=no
build_by_default=yes
# set srcdir during sourcing. See above about save & restore
saved_srcdir=${srcdir}
srcdir=${srcdir}/gcc . ${lang_frag}
srcdir=${saved_srcdir}
if test x${language} = x; then
echo "${lang_frag} doesn't set \$language." 1>&2
exit 1
fi
if test "$language" = "c++"; then
boot_language=yes
fi
add_this_lang=no
# C is always enabled, so no need to add it again
if test "$language" != "c"; then
case ,${enable_languages}, in
*,${language},*)
# Language was explicitly selected; include it
add_this_lang=yes
;;
*,all,*)
# All languages are enabled
add_this_lang=all
;;
*,default,*)
# 'default' was selected, select it if it is a default language
add_this_lang=${build_by_default}
;;
esac
fi
# Disable languages that need other directories if these aren't available.
for i in $subdir_requires; do
test -f "$srcdir/gcc/$i/config-lang.in" && continue
case ${add_this_lang} in
yes)
# Specifically requested language; tell them.
AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
;;
all)
AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
add_this_lang=unsupported
;;
*)
# Silently disable.
add_this_lang=unsupported
;;
esac
done
# Disable Ada if no preexisting GNAT is available.
case ${add_this_lang}:${language}:${have_gnat} in
yes:ada:no)
# Specifically requested language; tell them.
AC_MSG_ERROR([GNAT is required to build $language])
;;
all:ada:no)
AC_MSG_WARN([GNAT is required to build $language])
add_this_lang=unsupported
;;
*:ada:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
# Disable jit if -enable-host-shared not specified
case ${add_this_lang}:${language}:${host_shared} in
yes:jit:no)
# PR jit/64780: explicitly specify --enable-host-shared
AC_MSG_ERROR([
Enabling language "jit" requires --enable-host-shared.
--enable-host-shared typically slows the rest of the compiler down by
a few %, so you must explicitly enable it.
If you want to build both the jit and the regular compiler, it is often
best to do this via two separate configure/builds, in separate
directories, to avoid imposing the performance cost of
--enable-host-shared on the regular compiler.])
;;
all:jit:no)
AC_MSG_WARN([--enable-host-shared required to build $language])
add_this_lang=unsupported
;;
*:jit:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
# Disable a language that is unsupported by the target.
case "${add_this_lang}: $unsupported_languages " in
no:*) ;;
unsupported:*) ;;
*:*" $language "*)
AC_MSG_WARN([${language} not supported for this target])
add_this_lang=unsupported
;;
esac
case $add_this_lang in
unsupported)
# Remove language-dependent dirs.
disabled_target_libs="$disabled_target_libs $target_libs"
noconfigdirs="$noconfigdirs $lang_dirs"
;;
no)
# Remove language-dependent dirs; still show language as supported.
disabled_target_libs="$disabled_target_libs $target_libs"
noconfigdirs="$noconfigdirs $lang_dirs"
potential_languages="${potential_languages}${language},"
;;
all|yes)
new_enable_languages="${new_enable_languages}${language},"
potential_languages="${potential_languages}${language},"
missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
enabled_target_libs="$enabled_target_libs $target_libs"
case "${boot_language}:,$enable_stage1_languages," in
yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
# Add to (comma-separated) list of stage 1 languages.
case ",$stage1_languages," in
*,$language,* | ,yes, | ,all,) ;;
*) stage1_languages="${stage1_languages}${language}," ;;
esac
# We need to bootstrap any supporting libraries.
bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
;;
esac
;;
esac
;;
esac
done
# Add target libraries which are only needed for disabled languages
# to noconfigdirs.
if test -n "$disabled_target_libs"; then
for dir in $disabled_target_libs; do
case " $enabled_target_libs " in
*" ${dir} "*) ;;
*) noconfigdirs="$noconfigdirs $dir" ;;
esac
done
fi
AC_ARG_ENABLE(stage1-languages,
[AS_HELP_STRING([[--enable-stage1-languages[=all]]],
[choose additional languages to build during
stage1. Mostly useful for compiler development])],
[case ,${enable_stage1_languages}, in
,no,|,,)
# Set it to something that will have no effect in the loop below
enable_stage1_languages=c ;;
,yes,)
enable_stage1_languages=`echo $new_enable_languages | \
sed -e "s/^,//" -e "s/,$//" ` ;;
*,all,*)
enable_stage1_languages=`echo ,$enable_stage1_languages, | \
sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
esac
# Add "good" languages from enable_stage1_languages to stage1_languages,
# while "bad" languages go in missing_languages. Leave no duplicates.
for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
case $potential_languages in
*,$i,*)
case $stage1_languages in
*,$i,*) ;;
*) stage1_languages="$stage1_languages$i," ;;
esac ;;
*)
case $missing_languages in
*,$i,*) ;;
*) missing_languages="$missing_languages$i," ;;
esac ;;
esac
done])
# Remove leading/trailing commas that were added for simplicity
potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
if test "x$missing_languages" != x; then
AC_MSG_ERROR([
The following requested languages could not be built: ${missing_languages}
Supported languages are: ${potential_languages}])
fi
if test "x$new_enable_languages" != "x$enable_languages"; then
echo The following languages will be built: ${new_enable_languages}
enable_languages="$new_enable_languages"
fi
AC_SUBST(stage1_languages)
ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
fi
# Handle --disable-<component> generically.
for dir in $configdirs $build_configdirs $target_configdirs ; do
dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
varname=`echo $dirname | sed -e s/+/_/g`
if eval test x\${enable_${varname}} "=" xno ; then
noconfigdirs="$noconfigdirs $dir"
fi
done
# Check for Boehm's garbage collector
AC_ARG_ENABLE(objc-gc,
[AS_HELP_STRING([--enable-objc-gc],
[enable use of Boehm's garbage collector with the
GNU Objective-C runtime])])
AC_ARG_WITH([target-bdw-gc],
[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
[specify prefix directory for installed bdw-gc package.
Equivalent to --with-target-bdw-gc-include=PATH/include
plus --with-target-bdw-gc-lib=PATH/lib])])
AC_ARG_WITH([target-bdw-gc-include],
[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
[specify directories for installed bdw-gc include files])])
AC_ARG_WITH([target-bdw-gc-lib],
[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
[specify directories for installed bdw-gc library])])
case ,${enable_languages},:${enable_objc_gc} in *,objc,*:yes|*,objc,*:auto)
AC_MSG_CHECKING([for bdw garbage collector])
if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then
dnl no bdw-gw options, assume default locations
AC_MSG_RESULT([using bdw-gc in default locations])
else
dnl bdw-gw options, first error checking, complete checking in libobjc
if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then
AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing])
elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then
AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing])
else
AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options])
fi
fi
esac
# Disable libitm, libsanitizer, libvtv, liboffloadmic if we're not building C++
case ,${enable_languages}, in
*,c++,*)
# Disable libitm, libsanitizer if we're not building libstdc++
case "${noconfigdirs}" in
*target-libstdc++-v3*)
noconfigdirs="$noconfigdirs target-libitm target-libsanitizer"
;;
*) ;;
esac
;;
*)
noconfigdirs="$noconfigdirs target-liboffloadmic target-libitm target-libsanitizer target-libvtv"
;;
esac
# If gcc/ is not in the source tree then we'll not be building a
# target compiler, assume in that case we don't want to build any
# target libraries or tools.
#
# This was added primarily for the benefit for binutils-gdb who reuse
# this configure script, but don't always have target tools available.
if test ! -d ${srcdir}/gcc; then
skipdirs="${skipdirs} ${target_configdirs}"
fi
# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
# $build_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 -e s/build-//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 " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
build_configdirs=`echo " ${build_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 $dir"
fi
fi
fi
done
# Quietly strip out all directories which aren't configurable in this tree.
# This relies on all configurable subdirectories being autoconfiscated, which
# is now the case.
build_configdirs_all="$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} $i"
fi
done
# libiberty-linker-plugin is special: it doesn't have its own source directory,
# so we have to add it after the preceding checks.
if test x"$extra_linker_plugin_flags$extra_linker_plugin_configure_flags" != x
then
case " $configdirs " in
*" libiberty "*)
# If we can build libiberty, we can also build libiberty-linker-plugin.
configdirs="$configdirs libiberty-linker-plugin"
extra_linker_plugin_configure_flags="$extra_linker_plugin_configure_flags \
--with-libiberty=../libiberty-linker-plugin";;
*)
AC_MSG_ERROR([libiberty missing]);;
esac
fi
# Sometimes we have special requirements for the host libiberty.
extra_host_libiberty_configure_flags=
extra_host_zlib_configure_flags=
case " $configdirs " in
*" lto-plugin "* | *" libcc1 "*)
# When these are to be built as shared libraries, the same applies to
# libiberty.
extra_host_libiberty_configure_flags=--enable-shared
;;
*" bfd "*)
# When bfd is to be built as a shared library, the same applies to
# zlib.
if test "$enable_shared" = "yes"; then
extra_host_zlib_configure_flags=--enable-host-shared
fi
;;
esac
AC_SUBST(extra_host_libiberty_configure_flags)
AC_SUBST(extra_host_zlib_configure_flags)
# 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
# To find our prefix, in gcc_cv_tool_prefix.
ACX_TOOL_DIRS
copy_dirs=
AC_ARG_WITH([build-sysroot],
[AS_HELP_STRING([--with-build-sysroot=SYSROOT],
[use sysroot as the system root during the build])],
[if test x"$withval" != x ; then
SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
fi],
[SYSROOT_CFLAGS_FOR_TARGET=])
AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
AC_ARG_WITH([debug-prefix-map],
[AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
[map A to B, C to D ... in debug information])],
[if test x"$withval" != x; then
DEBUG_PREFIX_CFLAGS_FOR_TARGET=
for debug_map in $withval; do
DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
done
fi],
[DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS
# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
# We want to ensure that TARGET libraries (which we know are built with
# gcc) are built with "-O2 -g", so include those options when setting
# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
if test "x$CFLAGS_FOR_TARGET" = x; then
if test "x${is_cross_compiler}" = xyes; then
CFLAGS_FOR_TARGET="-g -O2"
else
CFLAGS_FOR_TARGET=$CFLAGS
case " $CFLAGS " in
*" -O2 "*) ;;
*) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
esac
case " $CFLAGS " in
*" -g "* | *" -g3 "*) ;;
*) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
esac
fi
fi
AC_SUBST(CFLAGS_FOR_TARGET)
if test "x$CXXFLAGS_FOR_TARGET" = x; then
if test "x${is_cross_compiler}" = xyes; then
CXXFLAGS_FOR_TARGET="-g -O2"
else
CXXFLAGS_FOR_TARGET=$CXXFLAGS
case " $CXXFLAGS " in
*" -O2 "*) ;;
*) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
esac
case " $CXXFLAGS " in
*" -g "* | *" -g3 "*) ;;
*) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
esac
fi
fi
AC_SUBST(CXXFLAGS_FOR_TARGET)
AC_SUBST(LDFLAGS_FOR_TARGET)
# 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"${with_headers}" != xyes ; then
x=${gcc_cv_tool_prefix}
copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
fi
fi
# Handle --with-libs=XXX. If the value is not "yes", the contents of
# the name directories are copied to $(tooldir)/lib. Multiple directories
# are permitted.
if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
if test x${is_cross_compiler} = xno ; then
echo 1>&2 '***' --with-libs is only supported when cross compiling
exit 1
fi
if test x"${with_libs}" != xyes ; then
# Copy the libraries in reverse order, so that files in the first named
# library override files in subsequent libraries.
x=${gcc_cv_tool_prefix}
for l in ${with_libs}; do
copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
done
fi
fi
# Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
#
# This is done by determining whether or not the appropriate directory
# is available, and by checking whether or not specific configurations
# have requested that this magic not happen.
#
# The command line options always override the explicit settings in
# configure.ac, and the settings in configure.ac override this magic.
#
# If the default for a toolchain is to use GNU as and ld, and you don't
# want to do that, then you should use the --without-gnu-as and
# --without-gnu-ld options for the configure script. Similarly, if
# the default is to use the included zlib and you don't want to do that,
# you should use the --with-system-zlib option for the configure script.
if test x${use_gnu_as} = x &&
echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
with_gnu_as=yes
extra_host_args="$extra_host_args --with-gnu-as"
fi
if test x${use_gnu_ld} = x &&
echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
with_gnu_ld=yes
extra_host_args="$extra_host_args --with-gnu-ld"
fi
if test x${use_included_zlib} = x &&
echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
:
else
with_system_zlib=yes
extra_host_args="$extra_host_args --with-system-zlib"
fi
# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
# can detect this case.
if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
with_newlib=yes
extra_host_args="$extra_host_args --with-newlib"
fi
# Handle ${copy_dirs}
set fnord ${copy_dirs}
shift
while test $# != 0 ; do
if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
:
else
echo Copying $1 to $2
# Use the install script to create the directory and all required
# parent directories.
if test -d $2 ; then
:
else
echo >config.temp
${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
fi
# Copy the directory, assuming we have tar.
# FIXME: Should we use B in the second tar? 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 > $2/COPIED
fi
shift; shift
done
# Determine a target-dependent exec_prefix that the installed
# gcc will search in. Keep this list sorted by triplet, with
# the *-*-osname triplets last.
md_exec_prefix=
case "${target}" in
i[[34567]]86-pc-msdosdjgpp*)
md_exec_prefix=/dev/env/DJDIR/bin
;;
*-*-hpux* | \
*-*-nto-qnx* | \
*-*-solaris2*)
md_exec_prefix=/usr/ccs/bin
;;
esac
extra_arflags_for_target=
extra_nmflags_for_target=
extra_ranlibflags_for_target=
target_makefile_frag=/dev/null
case "${target}" in
spu-*-*)
target_makefile_frag="config/mt-spu"
;;
mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
target_makefile_frag="config/mt-sde"
;;
mipsisa*-*-elfoabi*)
target_makefile_frag="config/mt-mips-elfoabi"
;;
mips*-*-*linux* | mips*-*-gnu*)
target_makefile_frag="config/mt-mips-gnu"
;;
nios2-*-elf*)
target_makefile_frag="config/mt-nios2-elf"
;;
*-*-linux-android*)
target_makefile_frag="config/mt-android"
;;
*-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-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. These flags are
# harmless if we're using GNU nm or ar.
extra_arflags_for_target=" -X32_64"
extra_nmflags_for_target=" -B -X32_64"
;;
esac
alphaieee_frag=/dev/null
case $target in
alpha*-*-*)
# This just makes sure to use the -mieee option to build target libs.
# This should probably be set individually by each library.
alphaieee_frag="config/mt-alphaieee"
;;
esac
# If --enable-target-optspace always use -Os instead of -O2 to build
# the target libraries, similarly if it is not specified, use -Os
# on selected platforms.
ospace_frag=/dev/null
case "${enable_target_optspace}:${target}" in
yes:*)
ospace_frag="config/mt-ospace"
;;
:d30v-*)
ospace_frag="config/mt-d30v"
;;
:m32r-* | :d10v-* | :fr30-* | :i?86*-*-elfiamcu)
ospace_frag="config/mt-ospace"
;;
no:* | :*)
;;
*)
echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
;;
esac
# Some systems (e.g., one of the i386-aix systems the gas testers are
# using) don't handle "\$" correctly, so don't use it here.
tooldir='${exec_prefix}'/${target_noncanonical}
build_tooldir=${tooldir}
# Create a .gdbinit file which runs the one in srcdir
# and tells GDB to look there for source files.
if test -r ${srcdir}/.gdbinit ; then
case ${srcdir} in
.) ;;
*) cat > ./.gdbinit <<EOF
# ${NO_EDIT}
dir ${srcdir}
dir .
source ${srcdir}/.gdbinit
EOF
;;
esac
fi
# Make sure that the compiler is able to generate an executable. If it
# can't, we are probably in trouble. We don't care whether we can run the
# executable--we might be using a cross compiler--we only care whether it
# can be created. At this point the main configure script has set CC.
we_are_ok=no
echo "int main () { return 0; }" > conftest.c
${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
if test $? = 0 ; then
if test -s conftest || test -s conftest.exe ; then
we_are_ok=yes
fi
fi
case $we_are_ok in
no)
echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
echo 1>&2 "*** You must set the environment variable CC to a working compiler."
rm -f conftest*
exit 1
;;
esac
rm -f conftest*
# Decide which environment variable is used to find dynamic libraries.
case "${host}" in
*-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
*-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
*-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
*) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
esac
# On systems where the dynamic library environment variable is PATH,
# gcc/ will put dynamic libraries into a subdirectory to avoid adding
# built executables to PATH.
if test "$RPATH_ENVVAR" = PATH; then
GCC_SHLIB_SUBDIR=/shlib
else
GCC_SHLIB_SUBDIR=
fi
# Adjust the toplevel makefile according to whether bootstrap was selected.
case $enable_bootstrap in
yes)
bootstrap_suffix=bootstrap
BUILD_CONFIG=bootstrap-debug
;;
no)
bootstrap_suffix=no-bootstrap
BUILD_CONFIG=
;;
esac
AC_MSG_CHECKING(for default BUILD_CONFIG)
AC_ARG_WITH([build-config],
[AS_HELP_STRING([--with-build-config='NAME NAME2...'],
[use config/NAME.mk build configuration])],
[case $with_build_config in
yes) with_build_config= ;;
no) with_build_config= BUILD_CONFIG= ;;
esac])
if test "x${with_build_config}" != x; then
BUILD_CONFIG=$with_build_config
else
case $BUILD_CONFIG in
bootstrap-debug)
if echo "int f (void) { return 0; }" > conftest.c &&
${CC} -c conftest.c &&
mv conftest.o conftest.o.g0 &&
${CC} -c -g conftest.c &&
mv conftest.o conftest.o.g &&
${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
:
else
BUILD_CONFIG=
fi
rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
;;
esac
fi
AC_MSG_RESULT($BUILD_CONFIG)
AC_SUBST(BUILD_CONFIG)
# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
AC_MSG_CHECKING([for --enable-vtable-verify])
AC_ARG_ENABLE(vtable-verify,
[AS_HELP_STRING([--enable-vtable-verify],
[Enable vtable verification feature])],
[case "$enableval" in
yes) enable_vtable_verify=yes ;;
no) enable_vtable_verify=no ;;
*) enable_vtable_verify=no;;
esac],
[enable_vtable_verify=no])
AC_MSG_RESULT($enable_vtable_verify)
# Record target_configdirs and the configure arguments for target and
# build configuration in Makefile.
target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
bootstrap_fixincludes=no
# If we are building libgomp, bootstrap it.
if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
fi
# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
# or bootstrap-ubsan, bootstrap it.
if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
case "$BUILD_CONFIG" in
*bootstrap-asan* | *bootstrap-ubsan* )
bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
bootstrap_fixincludes=yes
;;
esac
fi
# If we are building libvtv and --enable-vtable-verify, bootstrap it.
if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
test "$enable_vtable_verify" != no; then
bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
fi
# Determine whether gdb needs tk/tcl or not.
# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
# and in that case we want gdb to be built without tk. Ugh!
# In fact I believe gdb is the *only* package directly dependent on tk,
# so we should be able to put the 'maybe's in unconditionally and
# leave out the maybe dependencies when enable_gdbtk is false. I'm not
# 100% sure that that's safe though.
gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
case "$enable_gdbtk" in
no)
GDB_TK="" ;;
yes)
GDB_TK="${gdb_tk}" ;;
*)
# Only add the dependency on gdbtk when GDBtk is part of the gdb
# distro. Eventually someone will fix this and move Insight, nee
# gdbtk to a separate directory.
if test -d ${srcdir}/gdb/gdbtk ; then
GDB_TK="${gdb_tk}"
else
GDB_TK=""
fi
;;
esac
CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
# gdb and gdbserver depend on gnulib and gdbsupport, but as nothing
# else does, only include them if one of these is built. The Makefile
# provides the ordering, so it's enough here to add to the list.
case " ${configdirs} " in
*\ gdb\ *)
configdirs="${configdirs} gnulib gdbsupport"
;;
*\ gdbserver\ *)
configdirs="${configdirs} gnulib gdbsupport"
;;
*\ sim\ *)
configdirs="${configdirs} gnulib"
;;
esac
# Strip out unwanted targets.
# While at that, we remove Makefiles if we were started for recursive
# configuration, so that the top-level Makefile reconfigures them,
# like we used to do when configure itself was recursive.
# Loop over modules. We used to use the "$extrasub" feature from Autoconf
# but now we're fixing up the Makefile ourselves with the additional
# commands passed to AC_CONFIG_FILES. Use separate variables
# extrasub-{build,host,target} not because there is any reason to split
# the substitutions up that way, but only to remain below the limit of
# 99 commands in a script, for HP-UX sed.
# Do not nest @if/@endif or @unless/@endunless pairs, because
# configure will not warn you at all.
case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
yes:yes:*\ gold\ *:*,c++,*) ;;
yes:yes:*\ gold\ *:*)
AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
;;
esac
extrasub_build=
for module in ${build_configdirs} ; do
if test -z "${no_recursion}" \
&& test -f ${build_subdir}/${module}/Makefile; then
echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
rm -f ${build_subdir}/${module}/Makefile
fi
extrasub_build="$extrasub_build
/^@if build-$module\$/d
/^@endif build-$module\$/d
/^@unless build-$module\$/,/^@endunless build-$module\$/d
/^@if build-$module-$bootstrap_suffix\$/d
/^@endif build-$module-$bootstrap_suffix\$/d
/^@unless build-$module-$bootstrap_suffix\$/,/^@endunless build-$module-$bootstrap_suffix\$/d"
done
extrasub_host=
for module in ${configdirs} ; do
if test -z "${no_recursion}"; then
for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
if test -f ${file}; then
echo 1>&2 "*** removing ${file} to force reconfigure"
rm -f ${file}
fi
done
fi
case ${module},${bootstrap_fixincludes} in
fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
*) host_bootstrap_suffix=$bootstrap_suffix ;;
esac
extrasub_host="$extrasub_host
/^@if $module\$/d
/^@endif $module\$/d
/^@unless $module\$/,/^@endunless $module\$/d
/^@if $module-$host_bootstrap_suffix\$/d
/^@endif $module-$host_bootstrap_suffix\$/d
/^@unless $module-$host_bootstrap_suffix\$/,/^@endunless $module-$host_bootstrap_suffix\$/d"
done
extrasub_target=
for module in ${target_configdirs} ; do
if test -z "${no_recursion}" \
&& test -f ${target_subdir}/${module}/Makefile; then
echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
rm -f ${target_subdir}/${module}/Makefile
fi
# We only bootstrap target libraries listed in bootstrap_target_libs.
case $bootstrap_target_libs in
*,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
*) target_bootstrap_suffix=no-bootstrap ;;
esac
extrasub_target="$extrasub_target
/^@if target-$module\$/d
/^@endif target-$module\$/d
/^@unless target-$module\$/,/^@endunless target-$module\$/d
/^@if target-$module-$target_bootstrap_suffix\$/d
/^@endif target-$module-$target_bootstrap_suffix\$/d
/^@unless target-$module-$target_bootstrap_suffix\$/,/^@endunless target-$module-$target_bootstrap_suffix\$/d"
done
# Do the final fixup along with target modules.
extrasub_target="$extrasub_target
/^@if /,/^@endif /d
/^@unless /d
/^@endunless /d"
if test "$enable_pgo_build" != "no"; then
extrasub_build="$extrasub_build
/^@if pgo-build\$/d
/^@endif pgo-build\$/d"
fi
# Create the serialization dependencies. This uses a temporary file.
AC_ARG_ENABLE([serial-configure],
[AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
[force sequential configuration of
sub-packages for the host, target or build
machine, or all sub-packages])])
case ${enable_serial_configure} in
yes)
enable_serial_build_configure=yes
enable_serial_host_configure=yes
enable_serial_target_configure=yes
;;
esac
# These force 'configure's to be done one at a time, to avoid problems
# with contention over a shared config.cache.
rm -f serdep.tmp
echo '# serdep.tmp' > serdep.tmp
olditem=
test "x${enable_serial_build_configure}" = xyes &&
for item in ${build_configdirs} ; do
case ${olditem} in
"") ;;
*) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
esac
olditem=${item}
done
olditem=
test "x${enable_serial_host_configure}" = xyes &&
for item in ${configdirs} ; do
case ${olditem} in
"") ;;
*) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
esac
olditem=${item}
done
olditem=
test "x${enable_serial_target_configure}" = xyes &&
for item in ${target_configdirs} ; do
case ${olditem} in
"") ;;
*) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
esac
olditem=${item}
done
serialization_dependencies=serdep.tmp
AC_SUBST_FILE(serialization_dependencies)
# Base args. Strip norecursion, cache-file, srcdir, host, build,
# target, nonopt, and variable assignments. These are the ones we
# might not want to pass down to subconfigures. The exception being
# --cache-file=/dev/null, which is used to turn off the use of cache
# files altogether, and which should be passed on to subconfigures.
# Also strip program-prefix, program-suffix, and program-transform-name,
# so that we can pass down a consistent program-transform-name.
baseargs=
tbaseargs=
keep_next=no
skip_next=no
eval "set -- $ac_configure_args"
for ac_arg
do
if test X"$skip_next" = X"yes"; then
skip_next=no
continue
fi
if test X"$keep_next" = X"yes"; then
case $ac_arg in
*\'*)
ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
esac
baseargs="$baseargs '$ac_arg'"
tbaseargs="$tbaseargs '$ac_arg'"
keep_next=no
continue
fi
# Handle separated arguments. Based on the logic generated by
# autoconf 2.59.
case $ac_arg in
*=* | --config-cache | -C | -disable-* | --disable-* \
| -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
| -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
| -with-* | --with-* | -without-* | --without-* | --x)
separate_arg=no
;;
-*)
separate_arg=yes
;;
*)
separate_arg=no
;;
esac
skip_targ=no
case $ac_arg in
changequote(,)
--with-* | --without-*)
libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
case $libopt in
*[-_]include)
lib=`echo "$libopt" | sed 's,[-_]include$,,'`
;;
*[-_]lib)
lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
;;
*)
lib=$libopt
;;
esac
changequote([,])
case $lib in
mpc | mpfr | gmp | isl)
# If we're processing --with-$lib, --with-$lib-include or
# --with-$lib-lib, for one of the libs above, and target is
# different from host, don't pass the current argument to any
# target library's configure.
if test x$is_cross_compiler = xyes; then
skip_targ=yes
fi
;;
esac
;;
esac
case "$ac_arg" in
--cache-file=/dev/null | \
-cache-file=/dev/null )
# Handled here to avoid the test to skip args below.
baseargs="$baseargs '$ac_arg'"
tbaseargs="$tbaseargs '$ac_arg'"
# Assert: $separate_arg should always be no.
keep_next=$separate_arg
;;
--no*)
continue
;;
--c* | \
--sr* | \
--ho* | \
--bu* | \
--t* | \
--program-* | \
-cache_file* | \
-srcdir* | \
-host* | \
-build* | \
-target* | \
-program-prefix* | \
-program-suffix* | \
-program-transform-name* )
skip_next=$separate_arg
continue
;;
-*)
# An option. Add it.
case $ac_arg in
*\'*)
ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
esac
baseargs="$baseargs '$ac_arg'"
if test X"$skip_targ" = Xno; then
tbaseargs="$tbaseargs '$ac_arg'"
fi
keep_next=$separate_arg
;;
*)
# Either a variable assignment, or a nonopt (triplet). Don't
# pass it down; let the Makefile handle this.
continue
;;
esac
done
# Remove the initial space we just introduced and, as these will be
# expanded by make, quote '$'.
baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
# Add in --program-transform-name, after --program-prefix and
# --program-suffix have been applied to it. Autoconf has already
# doubled dollar signs and backslashes in program_transform_name; we want
# the backslashes un-doubled, and then the entire thing wrapped in single
# quotes, because this will be expanded first by make and then by the shell.
# Also, because we want to override the logic in subdir configure scripts to
# choose program_transform_name, replace any s,x,x, with s,y,y,.
sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
${program_transform_name}
EOF_SED
gcc_transform_name=`cat conftestsed.out`
rm -f conftestsed.out
baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
if test "$silent" = yes; then
baseargs="$baseargs --silent"
tbaseargs="$tbaseargs --silent"
fi
baseargs="$baseargs --disable-option-checking"
tbaseargs="$tbaseargs --disable-option-checking"
# Record and document user additions to sub configure arguments.
AC_ARG_VAR([build_configargs],
[additional configure arguments for build directories])
AC_ARG_VAR([host_configargs],
[additional configure arguments for host directories])
AC_ARG_VAR([target_configargs],
[additional configure arguments for target directories])
# For the build-side libraries, we just need to pretend we're native,
# and not use the same cache file. Multilibs are neither needed nor
# desired. We can't even use the same cache file for all build-side
# libraries, as they're compiled differently; some with C, some with
# C++ or with different feature-enabling options.
build_configargs="$build_configargs --cache-file=./config.cache ${baseargs}"
# For host modules, accept cache file option, or specification as blank.
case "${cache_file}" in
"") # empty
cache_file_option="" ;;
/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
cache_file_option="--cache-file=${cache_file}" ;;
*) # relative path
cache_file_option="--cache-file=../${cache_file}" ;;
esac
# Host dirs don't like to share a cache file either, horribly enough.
# This seems to be due to autoconf 2.5x stupidity.
host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
target_configargs="$target_configargs ${tbaseargs}"
# Passing a --with-cross-host argument lets the target libraries know
# whether they are being built with a cross-compiler or being built
# native. However, it would be better to use other mechanisms to make the
# sorts of decisions they want to make on this basis. Please consider
# this option to be deprecated. FIXME.
if test x${is_cross_compiler} = xyes ; then
target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
fi
# Special user-friendly check for native x86_64-linux build, if
# multilib is not explicitly enabled.
case "$target:$have_compiler:$host:$target:$enable_multilib" in
x86_64-*linux*:yes:$build:$build:)
# Make sure we have a development environment that handles 32-bit
dev64=no
echo "int main () { return 0; }" > conftest.c
${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
if test $? = 0 ; then
if test -s conftest || test -s conftest.exe ; then
dev64=yes
fi
fi
rm -f conftest*
if test x${dev64} != xyes ; then
AC_MSG_ERROR([I suspect your system does not have 32-bit development libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib.])
fi
;;
esac
# Default to --enable-multilib.
if test x${enable_multilib} = x ; then
target_configargs="--enable-multilib ${target_configargs}"
fi
# Pass --with-newlib if appropriate. Note that target_configdirs has
# changed from the earlier setting of with_newlib.
if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
target_configargs="--with-newlib ${target_configargs}"
fi
# Different target subdirs use different values of certain variables
# (notably CXX). Worse, multilibs use *lots* of different values.
# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
# it doesn't automatically accept command-line overrides of them.
# This means it's not safe for target subdirs to share a cache file,
# which is disgusting, but there you have it. Hopefully this can be
# fixed in future. It's still worthwhile to use a cache file for each
# directory. I think.
# Pass the appropriate --build, --host, --target and --cache-file arguments.
# We need to pass --target, as newer autoconf's requires consistency
# for target_alias and gcc doesn't manage it consistently.
target_configargs="--cache-file=./config.cache ${target_configargs}"
FLAGS_FOR_TARGET=
case " $target_configdirs " in
*" newlib "*)
case " $target_configargs " in
*" --with-newlib "*)
case "$target" in
*-cygwin*)
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
;;
esac
# If we're not building GCC, don't discard standard headers.
if test -d ${srcdir}/gcc; then
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
if test "${build}" != "${host}"; then
# On Canadian crosses, CC_FOR_TARGET will have already been set
# by `configure', so we won't have an opportunity to add -Bgcc/
# to it. This is right: we don't want to search that directory
# for binaries, but we want the header files in there, so add
# them explicitly.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
# Someone might think of using the pre-installed headers on
# Canadian crosses, in case the installed compiler is not fully
# compatible with the compiler being built. In this case, it
# would be better to flag an error than risking having
# incompatible object files being constructed. We can't
# guarantee that an error will be flagged, but let's hope the
# compiler will do it, when presented with incompatible header
# files.
fi
fi
case "${target}-${is_cross_compiler}" in
i[[3456789]]86-*-linux*-no)
# Here host == target, so we don't need to build gcc,
# so we don't want to discard standard headers.
FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
;;
*)
# If we're building newlib, use its generic headers last, but search
# for any libc-related directories first (so make it the last -B
# switch).
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
# If we're building libgloss, find the startup file, simulator library
# and linker script.
case " $target_configdirs " in
*" libgloss "*)
# Look for startup file, simulator library and maybe linker script.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
# Look for libnosys.a in case the target needs it.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
# Most targets have the linker script in the source directory.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
;;
esac
;;
esac
;;
esac
;;
esac
case "$target" in
x86_64-*mingw* | *-w64-mingw*)
# MinGW-w64 does not use newlib, nor does it use winsup. It may,
# however, use a symlink named 'mingw' in ${prefix} .
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
;;
*-mingw*)
# MinGW can't be handled as Cygwin above since it does not use newlib.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
;;
esac
# Allow the user to override the flags for
# our build compiler if desired.
if test x"${build}" = x"${host}" ; then
CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
fi
# On Canadian crosses, we'll be searching the right directories for
# the previously-installed cross compiler, so don't bother to add
# flags for directories within the install tree of the compiler
# being built; programs in there won't even run.
if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
# Search for pre-installed headers if nothing else fits.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
fi
if test "x${use_gnu_ld}" = x &&
echo " ${configdirs} " | grep " ld " > /dev/null ; then
# Arrange for us to find uninstalled linker scripts.
FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
fi
# Search for other target-specific linker scripts and such.
case "${target}" in
mep*)
FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
;;
esac
# Makefile fragments.
for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
do
eval fragval=\$$frag
if test $fragval != /dev/null; then
eval $frag=${srcdir}/$fragval
fi
done
AC_SUBST_FILE(host_makefile_frag)
AC_SUBST_FILE(target_makefile_frag)
AC_SUBST_FILE(alphaieee_frag)
AC_SUBST_FILE(ospace_frag)
# Miscellanea: directories, flags, etc.
AC_SUBST(RPATH_ENVVAR)
AC_SUBST(GCC_SHLIB_SUBDIR)
AC_SUBST(tooldir)
AC_SUBST(build_tooldir)
AC_SUBST(CONFIGURE_GDB_TK)
AC_SUBST(GDB_TK)
AC_SUBST(INSTALL_GDB_TK)
# Build module lists & subconfigure args.
AC_SUBST(build_configargs)
AC_SUBST(build_configdirs)
# Host module lists & subconfigure args.
AC_SUBST(host_configargs)
AC_SUBST(configdirs)
AC_SUBST(target_configdirs)
# Target module lists & subconfigure args.
AC_SUBST(target_configargs)
# Build tools.
AC_SUBST(AR_FOR_BUILD)
AC_SUBST(AS_FOR_BUILD)
AC_SUBST(CC_FOR_BUILD)
AC_SUBST(CFLAGS_FOR_BUILD)
AC_SUBST(CXXFLAGS_FOR_BUILD)
AC_SUBST(CXX_FOR_BUILD)
AC_SUBST(DLLTOOL_FOR_BUILD)
AC_SUBST(GFORTRAN_FOR_BUILD)
AC_SUBST(GOC_FOR_BUILD)
AC_SUBST(LDFLAGS_FOR_BUILD)
AC_SUBST(LD_FOR_BUILD)
AC_SUBST(NM_FOR_BUILD)
AC_SUBST(RANLIB_FOR_BUILD)
AC_SUBST(WINDMC_FOR_BUILD)
AC_SUBST(WINDRES_FOR_BUILD)
# Generate default definitions for YACC, M4, LEX and other programs that run
# on the build machine. These are used if the Makefile can't locate these
# programs in objdir.
MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
case " $build_configdirs " in
*" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
esac
AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
case " $build_configdirs " in
*" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
esac
AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
case " $build_configdirs " in
*" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
esac
AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
case " $build_configdirs " in
*" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
*" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
esac
AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
case " $build_configdirs " in
*" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
esac
AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
case " $build_configdirs " in
*" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
*)
changequote(,)
# For an installed makeinfo, we require it to be from texinfo 4.7 or
# higher, else we use the "missing" dummy.
if ${MAKEINFO} --version \
| egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
:
else
MAKEINFO="$MISSING makeinfo"
fi
;;
changequote([,])
esac
# FIXME: expect and dejagnu may become build tools?
AC_CHECK_PROGS(EXPECT, expect, expect)
case " $configdirs " in
*" expect "*)
test $host = $build && EXPECT='$$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(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(READELF, readelf)
AC_SUBST(CC)
AC_SUBST(CXX)
AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
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
else
if test "$enable_pgo_build" != "no"; then
AC_MSG_ERROR([AR with --plugin and rc is required for LTO build])
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)
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(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(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(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$$r/$(HOST_SUBDIR)/gcc/], go)
GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
GCC_TARGET_TOOL(objcopy, OBJCOPY_FOR_TARGET, OBJCOPY, [binutils/objcopy])
GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
AC_SUBST(FLAGS_FOR_TARGET)
AC_SUBST(RAW_CXX_FOR_TARGET)
# Certain tools may need extra flags.
AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
# When building target libraries, except in a Canadian cross, we use
# the same toolchain as the compiler we just built.
COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
if test $host = $build; then
case " $configdirs " in
*" gcc "*)
COMPILER_AS_FOR_TARGET='$$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 $BUILD_CONFIG in
bootstrap-debug)
stage2_werror_flag="--enable-werror-always" ;;
"")
stage2_werror_flag="--enable-werror-always" ;;
esac
fi
])
AC_SUBST(stage2_werror_flag)
# Specify what files to not compare during bootstrap.
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
case "$target" in
hppa*64*-*-hpux*) ;;
hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/* | gcc/function-tests.o" ;;
powerpc*-ibm-aix*) compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/* | *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
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