gcc/libphobos/configure.ac
Iain Buclaw fdfcb5353c libphobos: Build all modules with -fversion=Shared when configured with --enable-shared
The libgdruntime_convenience library was built with `-fversion=Shared',
but the libphobos part wasn't when creating the static library.

As there are no issues compiling in Shared code into the static library,
to avoid mismatches the flag is now always present when --enable-shared
is turned on.  Libtool's compiler PIC D flag is now the combination of
compiler PIC and D Shared flags, and AM_DFLAGS passes `-prefer-pic' to
libtool unless --enable-shared is turned off.

libphobos/ChangeLog:

	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Substitute enable_shared, enable_static, and
	phobos_lt_pic_flag.
	* libdruntime/Makefile.am (AM_DFLAGS): Replace
	  phobos_compiler_pic_flag with phobos_lt_pic_flags, and
	  phobos_compiler_shared_flag.
	* libdruntime/Makefile.in: Regenerate.
	* src/Makefile.am (AM_DFLAGS): Replace phobos_compiler_pic_flag
	  with phobos_lt_pic_flag, and phobos_compiler_shared_flag.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/libphobos.druntime_shared/druntime_shared.exp: Remove
	-fversion=Shared and -fno-moduleinfo from default extra test flags.
	* testsuite/libphobos.phobos_shared/phobos_shared.exp: Likewise.
	* testsuite/testsuite_flags.in: Add phobos_compiler_shared_flag to
	--gdcflags.
2021-03-26 16:14:32 +01:00

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# Process this file with autoconf to produce a configure script.
# Copyright (C) 2006-2021 Free Software Foundation, Inc.
#
# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# This requires that you have your environment set-up to use explicit
# versions of automake and autoconf.
#
# export ACLOCAL=/usr/bin/aclocal-1.15
# export AUTOMAKE=/usr/bin/automake-1.15
# export AUTOM4TE=/usr/bin/autom4te2.69
# export AUTOCONF=/usr/bin/autoconf2.69
#
# autoreconf2.69
#
AC_INIT(package-unused, version-unused,, libphobos)
AC_CONFIG_SRCDIR(libdruntime/gcc/attribute.d)
AC_CONFIG_HEADERS(config.h)
AM_ENABLE_MULTILIB(, ..)
AC_CANONICAL_SYSTEM
AC_USE_SYSTEM_EXTENSIONS
target_alias=${target_alias-$target}
AC_SUBST(target_alias)
# 1.11.1: Require that version of automake.
# foreign: Don't require README, INSTALL, NEWS, etc.
# no-define: Don't define PACKAGE and VERSION.
# no-dependencies: Don't generate automatic dependencies.
# (because it breaks when using bootstrap-lean, since some of the
# headers are gone at "make install" time).
# subdir-objects: Build objects in sub-directories.
# -Wall: Issue all automake warnings.
# -Wno-portability: Don't warn about constructs supported by GNU make.
# (because GCC requires GNU make anyhow).
# -Wno-override: Overrides used in testsuite.
AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies subdir-objects -Wall -Wno-portability -Wno-override])
m4_rename([_AC_ARG_VAR_PRECIOUS],[glibd_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AM_PROG_AS
AC_PROG_CC
AC_PROG_GDC
WITH_LOCAL_DRUNTIME([GDC_CHECK_COMPILE], [])
m4_rename_force([glibd_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AC_SUBST(CFLAGS)
AM_MAINTAINER_MODE
AC_PROG_RANLIB
AC_PROG_INSTALL
AC_PROG_MAKE_SET
# Add CET specific flags if CET is enabled
GCC_CET_FLAGS(CET_FLAGS)
AC_SUBST(CET_FLAGS)
# To ensure that runtime code for CET is compiled in, add in D version flags.
AS_IF([test x$enable_cet = xyes], [
CET_DFLAGS="$CET_FLAGS -fversion=CET"
DCFG_ENABLE_CET=true
], [
CET_DFLAGS=
DCFG_ENABLE_CET=false
])
AC_SUBST(CET_DFLAGS)
AC_SUBST(DCFG_ENABLE_CET)
# This should be inherited in the recursive make, but ensure it is defined.
test "$AR" || AR=ar
AC_SUBST(AR)
CC_FOR_BUILD=${CC_FOR_BUILD:-gcc}
AC_SUBST(CC_FOR_BUILD)
AC_SUBST(CFLAGS_FOR_BUILD)
# Enable libtool
LT_INIT(dlopen)
AM_PROG_LIBTOOL
WITH_LOCAL_DRUNTIME([LT_LANG([D])], [])
AC_SUBST(enable_shared)
AC_SUBST(enable_static)
# libtool variables for Phobos shared and position-independent compiles.
#
# Use phobos_lt_pic_flag to designate the automake variable
# used to encapsulate the default libtool approach to creating objects
# with position-independent code. Default: -prefer-pic.
#
# Use phobos_compiler_shared_flag to designate the compile-time flags for
# creating shared objects. Default: -fversion=Shared.
#
# Use phobos_compiler_pic_flag to designate the compile-time flags for
# creating position-independent objects. This varies with the target
# hardware and operating system, but is often: -fPIC.
#
# The distinction between pic and shared compilation flags is not present in
# libtool, and so we make it here. How it is handled is that in shared
# compilations the `lt_prog_compiler_pic_D' variable is used to instead
# ensure that conditional compilation of shared runtime code is compiled in.
if test "$enable_shared" = yes; then
phobos_lt_pic_flag="-prefer-pic"
phobos_compiler_pic_flag="$lt_prog_compiler_pic_D"
phobos_compiler_shared_flag="-fversion=Shared"
else
phobos_lt_pic_flag=
phobos_compiler_pic_flag=
phobos_compiler_shared_flag=
fi
AC_SUBST(phobos_lt_pic_flag)
AC_SUBST(phobos_compiler_pic_flag)
AC_SUBST(phobos_compiler_shared_flag)
# Override the libtool's pic_flag and pic_mode.
# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
# NB: this impacts --with-pic and --without-pic.
lt_prog_compiler_pic_D="$phobos_compiler_pic_flag $phobos_compiler_shared_flag"
pic_mode='default'
# Determine what GCC version number to use in filesystem paths.
GCC_BASE_VER
# libphobos/libdruntime specific options and feature detection
DRUNTIME_CONFIGURE
DRUNTIME_MULTILIB
DRUNTIME_WERROR
DRUNTIME_CPU_SOURCES
DRUNTIME_OS_SOURCES
DRUNTIME_OS_THREAD_MODEL
DRUNTIME_OS_ARM_EABI_UNWINDER
DRUNTIME_OS_MINFO_BRACKETING
DRUNTIME_OS_DLPI_TLS_MODID
DRUNTIME_OS_LINK_SPEC
DRUNTIME_LIBRARIES_CLIB
WITH_LOCAL_DRUNTIME([
AC_LANG_PUSH([D])
AC_SEARCH_LIBS([malloc], [c])
AC_SEARCH_LIBS([pthread_create], [pthread])
AC_SEARCH_LIBS([cosf], [m])
AC_SEARCH_LIBS([clock_gettime], [rt])
DRUNTIME_ENABLE_ATOMIC_BUILTINS
AC_LANG_POP([D])
], [-nophoboslib])
DRUNTIME_LIBRARIES_ATOMIC
DRUNTIME_LIBRARIES_BACKTRACE
DRUNTIME_LIBRARIES_DLOPEN
DRUNTIME_LIBRARIES_NET
DRUNTIME_LIBRARIES_UCONTEXT
DRUNTIME_LIBRARIES_ZLIB
DRUNTIME_INSTALL_DIRECTORIES
AC_MSG_CHECKING([for --enable-libphobos])
AC_ARG_ENABLE(libphobos,
[AS_HELP_STRING([--enable-libphobos], [Enable libphobos])])
AC_MSG_RESULT($enable_libphobos)
AC_MSG_CHECKING([for --with-libphobos-druntime-only])
AC_ARG_WITH(libphobos-druntime-only,
AS_HELP_STRING([--with-libphobos-druntime-only={yes,no,auto}],
[build only the druntime library (default: auto)]),,
[with_libphobos_druntime_only=auto])
AC_MSG_RESULT($with_libphobos_druntime_only)
case "$with_libphobos_druntime_only" in
yes|no|auto) ;;
*) AC_MSG_ERROR([Invalid argument for --with-libphobos-druntime-only]) ;;
esac
# See if supported.
unset LIBPHOBOS_SUPPORTED
unset LIBDRUNTIME_ONLY
AC_MSG_CHECKING([for host support for libphobos])
. ${srcdir}/configure.tgt
case ${host} in
x86_64-*-solaris2.* | i?86-*-solaris2.*)
# libphobos doesn't compile with the Solaris/x86 assembler due to a
# relatively low linelength limit.
as_prog=`$CC -print-prog-name=as`
if test -n "$as_prog" && $as_prog -v /dev/null 2>&1 | grep GNU > /dev/null 2>&1; then
druntime_cv_use_gas=yes;
else
druntime_cv_use_gas=no;
fi
rm -f a.out
if test x$druntime_cv_use_gas = xno; then
LIBPHOBOS_SUPPORTED=no
fi
# 64-bit D execution fails with Solaris ld without -z relax=transtls support.
if test "$druntime_ld_gld" = "no" && test "$druntime_ld_relax_transtls" = "no"; then
LIBPHOBOS_SUPPORTED=no
fi
;;
esac
AC_MSG_RESULT($LIBPHOBOS_SUPPORTED)
# Decide if it's usable.
case $LIBPHOBOS_SUPPORTED:$enable_libphobos in
*:no) use_libphobos=no ;;
*:yes) use_libphobos=yes ;;
yes:*) use_libphobos=yes ;;
*:*) use_libphobos=no ;;
esac
AM_CONDITIONAL(ENABLE_LIBPHOBOS, test x$use_libphobos = xyes)
# Decide if only libdruntime should be built.
case $LIBDRUNTIME_ONLY:$with_libphobos_druntime_only in
*:no) only_libdruntime=no ;;
*:yes) only_libdruntime=yes ;;
yes:*) only_libdruntime=yes ;;
*:*) only_libdruntime=no ;;
esac
AM_CONDITIONAL(ENABLE_LIBDRUNTIME_ONLY, test x$only_libdruntime = xyes)
# Enable expensive internal checks
AC_ARG_ENABLE(libphobos-checking,
[AS_HELP_STRING([[--enable-libphobos-checking[=LIST]]],
[enable expensive run-time checks. With LIST,
enable only specific categories of checks.
Categories are: yes,no,all,none,release.
Flags are: assert or other strings])],
[ac_checking_flags="${enableval}"],[ac_checking_flags=release])
IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
for check in release $ac_checking_flags
do
case $check in
# These set all the flags to specific states
yes|all) RELEASE_FLAG="-fno-release" ; ASSERT_FLAG= ;;
no|none|release) RELEASE_FLAG="-frelease" ; ASSERT_FLAG= ;;
# These enable particular checks
assert) ASSERT_FLAG="-fassert" ;;
# Accept
*) ;;
esac
done
IFS="$ac_save_IFS"
CHECKING_DFLAGS="$RELEASE_FLAG $ASSERT_FLAG"
AC_SUBST(CHECKING_DFLAGS)
# Add drtbegin.o/drtend.o to startfile/endfile specs in libgphobos.spec
if test "$DCFG_MINFO_BRACKETING" = "false"; then
DRTSTUFF_SPEC=$srcdir/src/drtstuff.spec
else
DRTSTUFF_SPEC=/dev/null
fi
AC_SUBST_FILE(DRTSTUFF_SPEC)
# Add dependencies for libgphobos.spec file
SPEC_PHOBOS_DEPS="$LIBS"
AC_SUBST(SPEC_PHOBOS_DEPS)
# Libdruntime / phobos soname version
libtool_VERSION=2:0:0
AC_SUBST(libtool_VERSION)
# Set default flags (after DRUNTIME_WERROR!)
if test -z "$GDCFLAGS"; then
GDCFLAGS="-g -O2"
fi
AC_SUBST(GDCFLAGS)
WARN_DFLAGS="-Wall $WERROR_FLAG"
AC_SUBST(WARN_DFLAGS)
# Sanity check for the cross-compilation case:
AC_CHECK_HEADER(stdio.h,:,
[AC_MSG_ERROR([cannot find stdio.h.])])
AC_CONFIG_FILES(Makefile)
AC_CONFIG_FILES(libdruntime/gcc/config.d libdruntime/gcc/libbacktrace.d)
AC_CONFIG_FILES(src/libgphobos.spec)
AC_CONFIG_FILES([testsuite/testsuite_flags],[chmod +x testsuite/testsuite_flags])
# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
# that multilib installs will end up installed in the correct place.
# The testsuite needs it for multilib-aware ABI baseline files.
# To work around this not being passed down from config-ml.in ->
# srcdir/Makefile.am -> srcdir/{src,libdruntime,...}/Makefile.am, manually
# append it here. Only modify Makefiles that have just been created.
#
# Also, get rid of this simulated-VPATH thing that automake does.
AC_CONFIG_FILES(AC_FOREACH([DIR], [libdruntime src testsuite], [DIR/Makefile ]),
[cat > vpsed$$ << \_EOF
s!`test -f '$<' || echo '$(srcdir)/'`!!
_EOF
sed -f vpsed$$ $ac_file > tmp$$
mv tmp$$ $ac_file
rm vpsed$$
echo 'MULTISUBDIR =' >> $ac_file
ml_norecursion=yes
. ${multi_basedir}/config-ml.in
AS_UNSET([ml_norecursion])
])
AC_OUTPUT