https://gcc.gnu.org/g:18518d2843f868b9ff8e07512fb3c442ec59f480
commit r16-5763-g18518d2843f868b9ff8e07512fb3c442ec59f480 Author: Jose E. Marchesi <[email protected]> Date: Sat Oct 11 19:55:19 2025 +0200 a68: libga68: build system Signed-off-by: Jose E. Marchesi <[email protected]> ChangeLog * libga68/Makefile.am: New file. * libga68/configure.ac: Likewise. * libga68/Makefile.in: Generate. * libga68/aclocal.m4: Likewise. Diff: --- libga68/Makefile.am | 122 +++++ libga68/Makefile.in | 906 +++++++++++++++++++++++++++++++++++++ libga68/aclocal.m4 | 1200 ++++++++++++++++++++++++++++++++++++++++++++++++++ libga68/configure.ac | 371 ++++++++++++++++ 4 files changed, 2599 insertions(+) diff --git a/libga68/Makefile.am b/libga68/Makefile.am new file mode 100644 index 000000000000..accdd910d8d1 --- /dev/null +++ b/libga68/Makefile.am @@ -0,0 +1,122 @@ +# Makefile for libga68. +# Copyright (C) 2025 Jose E. Marchesi. +# +# 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/>. +# +# +# if this file is changed then you need to run +# +# autoreconf2.69 + +AUTOMAKE_OPTIONS = 1.8 foreign +ACLOCAL_AMFLAGS = -I .. -I ../config +# Multilib support. +MAKEOVERRIDES= + +gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER) +TOP_GCCDIR := $(shell cd $(top_srcdir) && cd .. && pwd) + +GCC_DIR = $(TOP_GCCDIR)/gcc +A68_SRC = $(GCC_DIR)/algol68 + +toolexeclibdir=@toolexeclibdir@ +toolexecdir=@toolexecdir@ +A68_FOR_TARGET=@A68_FOR_TARGET@ + +extra_darwin_ldflags_libga68=@extra_darwin_ldflags_libga68@ + +if ENABLE_DARWIN_AT_RPATH +extra_darwin_ldflags_libga68 += -Wc,-nodefaultrpaths +extra_darwin_ldflags_libga68 += -Wl,-rpath,@loader_path +endif + +A68_BUILDDIR := $(shell pwd) + +# Work around what appears to be a GNU make bug handling MAKEFLAGS +# values defined in terms of make variables, as is the case for CC and +# friends when we are called from the top level Makefile. +AM_MAKEFLAGS = \ + "GCC_DIR=$(GCC_DIR)" \ + "A68_SRC=$(A68_SRC)" \ + "AR_FLAGS=$(AR_FLAGS)" \ + "CC_FOR_BUILD=$(CC_FOR_BUILD)" \ + "CC_FOR_TARGET=$(CC_FOR_TARGET)" \ + "A68_FOR_TARGET=$(A68_FOR_TARGET)" \ + "CFLAGS=$(CFLAGS)" \ + "CXXFLAGS=$(CXXFLAGS)" \ + "CFLAGS_FOR_BUILD=$(CFLAGS_FOR_BUILD)" \ + "CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \ + "CFLAGS_LONGDOUBLE=$(CFLAGS_LONGDOUBLE)" \ + "EXPECT=$(EXPECT)" \ + "INSTALL=$(INSTALL)" \ + "INSTALL_DATA=$(INSTALL_DATA)" \ + "INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \ + "INSTALL_SCRIPT=$(INSTALL_SCRIPT)" \ + "LDFLAGS=$(LDFLAGS)" \ + "LIBCFLAGS=$(LIBCFLAGS)" \ + "LIBCFLAGS_FOR_TARGET=$(LIBCFLAGS_FOR_TARGET)" \ + "MAKE=$(MAKE)" \ + "MAKEINFO=$(MAKEINFO) $(MAKEINFOFLAGS)" \ + "PICFLAG=$(PICFLAG)" \ + "PICFLAG_FOR_TARGET=$(PICFLAG_FOR_TARGET)" \ + "SHELL=$(SHELL)" \ + "RUNTESTFLAGS=$(RUNTESTFLAGS)" \ + "exec_prefix=$(exec_prefix)" \ + "infodir=$(infodir)" \ + "libdir=$(libdir)" \ + "includedir=$(includedir)" \ + "prefix=$(prefix)" \ + "tooldir=$(tooldir)" \ + "gxx_include_dir=$(gxx_include_dir)" \ + "AR=$(AR)" \ + "AS=$(AS)" \ + "LD=$(LD)" \ + "RANLIB=$(RANLIB)" \ + "NM=$(NM)" \ + "NM_FOR_BUILD=$(NM_FOR_BUILD)" \ + "NM_FOR_TARGET=$(NM_FOR_TARGET)" \ + "DESTDIR=$(DESTDIR)" \ + "WERROR=$(WERROR)" \ + "TARGET_LIB_PATH=$(TARGET_LIB_PATH)" \ + "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)" \ + "LIBTOOL=$(A68_BUILDDIR)/libtool" \ + "DARWIN_AT_RPATH=$(DARWIN_AT_RPATH)" + +# Subdir rules rely on $(FLAGS_TO_PASS) +FLAGS_TO_PASS = $(AM_MAKEFLAGS) + +gcc_objdir = $(MULTIBUILDTOP)../../$(host_subdir)/gcc + +toolexeclib_DATA = libga68.spec +toolexeclib_LTLIBRARIES = libga68.la + +libga68_la_SOURCES = libga68.c \ + ga68-unistr.c \ + ga68-posix.c \ + ga68-alloc.c \ + ga68-error.c \ + ga68-standenv.c \ + ga68.h +libga68_la_LIBTOOLFLAGS = +libga68_la_CFLAGS = $(LIBGA68_GCFLAGS) $(LIBGA68_BOEHM_GC_INCLUDES) +libga68_la_LDFLAGS = -version-info $(libga68_VERSION) \ + $(extra_darwin_ldflags_libga68) +libga68_la_DEPENDENCIES = libga68.spec +libga68_la_LIBADD = $(LIBGA68_BOEHM_GC_LIBS) + +# target overrides +-include $(tmake_file) + +include $(top_srcdir)/../multilib.am diff --git a/libga68/Makefile.in b/libga68/Makefile.in new file mode 100644 index 000000000000..1a1f40c82c7e --- /dev/null +++ b/libga68/Makefile.in @@ -0,0 +1,906 @@ +# Makefile.in generated by automake 1.15.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2017 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +# Makefile for libga68. +# Copyright (C) 2025 Jose E. Marchesi. +# +# 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. 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Yes, it's still used +# in the wild :-( We should find a proper way to deprecate it ... +AC_SUBST([AMTAR], ['$${TAR-tar}']) + +# We'll loop over all known methods to create a tar archive until one works. +_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' + +m4_if([$1], [v7], + [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], + + [m4_case([$1], + [ustar], + [# The POSIX 1988 'ustar' format is defined with fixed-size fields. + # There is notably a 21 bits limit for the UID and the GID. In fact, + # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 + # and bug#13588). + am_max_uid=2097151 # 2^21 - 1 + am_max_gid=$am_max_uid + # The $UID and $GID variables are not portable, so we need to resort + # to the POSIX-mandated id(1) utility. Errors in the 'id' calls + # below are definitely unexpected, so allow the users to see them + # (that is, avoid stderr redirection). + am_uid=`id -u || echo unknown` + am_gid=`id -g || echo unknown` + AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) + if test $am_uid -le $am_max_uid; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + _am_tools=none + fi + AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) + if test $am_gid -le $am_max_gid; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + _am_tools=none + fi], + + [pax], + [], + + [m4_fatal([Unknown tar format])]) + + AC_MSG_CHECKING([how to create a $1 tar archive]) + + # Go ahead even if we have the value already cached. We do so because we + # need to set the values for the 'am__tar' and 'am__untar' variables. + _am_tools=${am_cv_prog_tar_$1-$_am_tools} + + for _am_tool in $_am_tools; do + case $_am_tool in + gnutar) + for _am_tar in tar gnutar gtar; do + AM_RUN_LOG([$_am_tar --version]) && break + done + am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' + am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' + am__untar="$_am_tar -xf -" + ;; + plaintar) + # Must skip GNU tar: if it does not support --format= it doesn't create + # ustar tarball either. + (tar --version) >/dev/null 2>&1 && continue + am__tar='tar chf - "$$tardir"' + am__tar_='tar chf - "$tardir"' + am__untar='tar xf -' + ;; + pax) + am__tar='pax -L -x $1 -w "$$tardir"' + am__tar_='pax -L -x $1 -w "$tardir"' + am__untar='pax -r' + ;; + cpio) + am__tar='find "$$tardir" -print | cpio -o -H $1 -L' + am__tar_='find "$tardir" -print | cpio -o -H $1 -L' + am__untar='cpio -i -H $1 -d' + ;; + none) + am__tar=false + am__tar_=false + am__untar=false + ;; + esac + + # If the value was cached, stop now. We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works. + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar <conftest.tar]) + AM_RUN_LOG([cat conftest.dir/file]) + grep GrepMe conftest.dir/file >/dev/null 2>&1 && break + fi + done + rm -rf conftest.dir + + AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) + AC_MSG_RESULT([$am_cv_prog_tar_$1])]) + +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + +m4_include([../config/acx.m4]) +m4_include([../config/depstand.m4]) +m4_include([../config/lead-dot.m4]) +m4_include([../config/multi.m4]) +m4_include([../config/no-executables.m4]) +m4_include([../config/override.m4]) +m4_include([../libtool.m4]) +m4_include([../ltoptions.m4]) +m4_include([../ltsugar.m4]) +m4_include([../ltversion.m4]) +m4_include([../lt~obsolete.m4]) diff --git a/libga68/configure.ac b/libga68/configure.ac new file mode 100644 index 000000000000..56ef197e5f40 --- /dev/null +++ b/libga68/configure.ac @@ -0,0 +1,371 @@ +# Configure script for libga68. +# Copyright (C) 2025 Jose E. Marchesi. + +# GCC is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. + +# GCC is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with GCC; see the file COPYING3. If not see +# <http://www.gnu.org/licenses/>. + +# Process this file with autoreconf to produce a configure script. + +AC_INIT(package-unused, version-unused,,libga68) +AC_CONFIG_SRCDIR(Makefile.am) +AC_CONFIG_HEADER(config.h) + +# Add --enable-multilib to configure, which defaults to enable. +AM_ENABLE_MULTILIB(, ..) + +if test "${multilib}" = "yes"; then + multilib_arg="--enable-multilib" +else + multilib_arg= +fi + +# Cope with compilers, in subsequent tests, that at this stage may not +# be able to build executables. +GCC_NO_EXECUTABLES + +# Enable extensions to C or POSIX on hosts that normally disable the +# extensions. This should be called before any macros that run the C +# compiler. +AC_USE_SYSTEM_EXTENSIONS + +# Determine the system type and set output variabls to the names of +# the canonical system types. +# +# Do not delete or change the following two lines. For why, and for +# why we are using the obsolete AC_CANONICAL_SYSTEM as ell as the +# recommended AC_CANONICAL_HOST, see +# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html +AC_CANONICAL_SYSTEM +target_alias=${target_alias-$host_alias} +AC_SUBST(target_alias) +AC_CANONICAL_HOST + +# These macro are for supporting canadian crosses, in which build /= +# host /= target. +ACX_NONCANONICAL_HOST +ACX_NONCANONICAL_TARGET +GCC_TOPLEV_SUBDIRS + +# Initialize Automake with proper options. +AM_INIT_AUTOMAKE([1.15.1 no-define foreign no-dist -Wall -Wno-portability]) + +# Tell Autoheader to include templates for PACKAGE and VERSION in +# config.h.in. +AH_TEMPLATE(PACKAGE, [Name of package]) +AH_TEMPLATE(VERSION, [Version number of package]) + +# Command-line options. + +# Enable large-file support. +AC_SYS_LARGEFILE + +AC_ARG_WITH(cross-host, +[ --with-cross-host=HOST Configuring with a cross compiler]) + +AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) +AC_ARG_ENABLE(version-specific-runtime-libs, +[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], +[case "$enableval" in + yes) version_specific_libs=yes ;; + no) version_specific_libs=no ;; + *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; + esac], +[version_specific_libs=no]) +AC_MSG_RESULT($version_specific_libs) + +AC_ARG_WITH(slibdir, +[ --with-slibdir=DIR shared libraries in DIR [LIBDIR]], +slibdir="$with_slibdir", +if test "${version_specific_libs}" = yes; then + slibdir='$(libsubdir)' +elif test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then + slibdir='$(exec_prefix)/$(host_noncanonical)/lib' +else + slibdir='$(libdir)' +fi) +AC_SUBST(slibdir) + +# Calculate toolexeclibdir +# Also toolexecdir, though it's only used in toolexeclibdir +toolexecdir=no +toolexeclibdir=no +case ${version_specific_libs} in + yes) + # Need the gcc compiler version to know where to install libraries + # and header files if --enable-version-specific-runtime-libs option + # is selected. + toolexecdir='$(libdir)/gcc/$(target_noncanonical)' + toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' + ;; + no) + if test -n "$with_cross_host" && + test x"$with_cross_host" != x"no"; then + # Install a library built with a cross compiler in tooldir, not libdir. + toolexecdir='$(exec_prefix)/$(target_noncanonical)' + toolexeclibdir='$(toolexecdir)/lib' + else + toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)' + toolexeclibdir='$(libdir)' + fi + multi_os_directory=`$CC -print-multi-os-directory` + case $multi_os_directory in + .) ;; # Avoid trailing /. + *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; + esac + ;; +esac +AC_SUBST(toolexecdir) +AC_SUBST(toolexeclibdir) + +# Add support for --enable-maintainer-mode={yes,no} to configure. +AM_MAINTAINER_MODE + +# We must force CC to /not/ be precious variables; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. +m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) +m4_define([_AC_ARG_VAR_PRECIOUS],[]) +AC_PROG_CC +AM_PROG_AS +m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) +AC_SUBST(CFLAGS) + +# In order to override CFLAGS_FOR_TARGET, all of our special flags go +# in XCFLAGS. But we need them in CFLAGS during configury. So put them +# in both places for now and restore CFLAGS at the end of config. +save_CFLAGS="$CFLAGS" + +# Find other programs we need. +AC_CHECK_TOOL(AR, ar) +AC_CHECK_TOOL(NM, nm) +AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) +AC_PROG_MAKE_SET +AC_PROG_INSTALL + +# Initialize libtool. +LT_INIT + +AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes]) + +AC_SUBST(enable_shared) +AC_SUBST(enable_static) + +# Do compilation tests using the C compiler and preprocessor. +AC_LANG_C([C]) + +# Allow the user to set CC_FOR_BUILD in the environment. +CC_FOR_BUILD=${CC_FOR_BUILD:-gcc} +AC_SUBST(CC_FOR_BUILD) + +# Search for needed functions in host libraries. +AC_SEARCH_LIBS([malloc], [c]) +AC_SEARCH_LIBS([cosf], [m]) + +# Determine what GCC version number to use in filesystem paths. +GCC_BASE_VER + +# Add dependencies for libga68.spec file +SPEC_LIBGA68_DEPS="$LIBS" +AC_SUBST(SPEC_LIBGA68_DEPS) + +# libga68 soname version +libga68_VERSION=2:0:0 +AC_SUBST(libga68_VERSION) + +# The Boehm GC + +AC_ARG_ENABLE(algol68-gc, +[AS_HELP_STRING([--enable-algol68-gc], + [enable use of Boehm's garbage collector with the + GNU Algol runtime])],,enable_algol68_gc=no) +AC_ARG_WITH([target-bdw-gc], +[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], + [specify prefix directory for installed bdw-gc package. + Equivalent to --with-target-bdw-gc-include=PATH/include + plus --with-target-bdw-gc-lib=PATH/lib])]) +AC_ARG_WITH([target-bdw-gc-include], +[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], + [specify directories for installed bdw-gc include files])]) +AC_ARG_WITH([target-bdw-gc-lib], +[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], + [specify directories for installed bdw-gc library])]) + +bdw_lib_dir= +case "$enable_algol68_gc" in +no) + use_bdw_gc=no + ;; +*) + AC_MSG_CHECKING([for bdw garbage collector]) + if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then + dnl no bdw-gw options, assuming bdw-gc in default locations + BDW_GC_CFLAGS= + BDW_GC_LIBS="-lgc" + else + dnl bdw-gw options passed by configure flags + if test "x$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$with_target_bdw_gc_lib" = x; then + AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) + else + AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) + fi + mldir=`${CC-gcc} --print-multi-directory 2>/dev/null` + bdw_val= + if test "x$with_target_bdw_gc" != x; then + for i in `echo $with_target_bdw_gc | tr ',' ' '`; do + case "$i" in + *=*) sd=${i%%=*}; d=${i#*=} ;; + *) sd=.; d=$i ;; + esac + if test "$mldir" = "$sd"; then + bdw_val=$d + fi + done + if test "x$bdw_val" = x; then + AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc]) + fi + bdw_inc_dir="$bdw_val/include" + bdw_lib_dir="$bdw_val/lib" + fi + bdw_val= + if test "x$with_target_bdw_gc_include" != x; then + for i in `echo $with_target_bdw_gc_include | tr ',' ' '`; do + case "$i" in + *=*) sd=${i%%=*}; d=${i#*=} ;; + *) sd=.; d=$i; fallback=$i ;; + esac + if test "$mldir" = "$sd"; then + bdw_val=$d + fi + done + if test "x$bdw_val" = x && test "x$bdw_inc_dir" = x && test "x$fallback" != x; then + bdw_inc_dir="$fallback" + elif test "x$bdw_val" = x; then + AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-include]) + else + bdw_inc_dir="$bdw_val" + fi + fi + bdw_val= + if test "x$with_target_bdw_gc_lib" != x; then + for i in `echo $with_target_bdw_gc_lib | tr ',' ' '`; do + case "$i" in + *=*) sd=${i%%=*}; d=${i#*=} ;; + *) sd=.; d=$i ;; + esac + if test "$mldir" = "$sd"; then + bdw_val=$d + fi + done + if test "x$bdw_val" = x; then + AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-lib]) + fi + bdw_lib_dir="$bdw_val" + fi + if test "x$bdw_inc_dir" = x; then + AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-include]) + fi + if test "x$bdw_lib_dir" = x; then + AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-lib]) + fi + BDW_GC_CFLAGS="-I$bdw_inc_dir" + if test -f $bdw_lib_dir/libgc.la; then + BDW_GC_LIBS="$bdw_lib_dir/libgc.la" + else + BDW_GC_LIBS="-L$bdw_lib_dir -lgc" + fi + AC_MSG_RESULT([found]) + fi + + case "$BDW_GC_LIBS" in + *libgc.la) + use_bdw_gc=yes + ;; + *) + AC_MSG_CHECKING([for system boehm-gc]) + save_CFLAGS=$CFLAGS + save_LIBS=$LIBS + CFLAGS="$CFLAGS $BDW_GC_CFLAGS" + LIBS="$LIBS $BDW_GC_LIBS" + dnl the link test is not good enough for ARM32 multilib detection, + dnl first check to link, then to run + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([#include <gc/gc.h>],[GC_init()])], + [ + AC_RUN_IFELSE([AC_LANG_SOURCE([[ + #include <gc/gc.h> + int main() { + GC_init(); + return 0; + } + ]])], + [system_bdw_gc_found=yes], + [system_bdw_gc_found=no], + dnl assume no system boehm-gc for cross builds ... + [system_bdw_gc_found=no] + ) + ], + [system_bdw_gc_found=no]) + CFLAGS=$save_CFLAGS + LIBS=$save_LIBS + if test x$enable_algol68_gc = xauto && test x$system_bdw_gc_found = xno; then + AC_MSG_WARN([system bdw-gc not found, building libga68 with no GC support]) + use_bdw_gc=no + elif test x$enable_algol68_gc = xyes && test x$system_bdw_gc_found = xno; then + AC_MSG_ERROR([system bdw-gc required but not found]) + else + use_bdw_gc=yes + AC_MSG_RESULT([found]) + fi + esac +esac + +if test "$use_bdw_gc" = no; then + LIBGA68_GCFLAGS='' + LIBGA68_BOEHM_GC_INCLUDES='' + LIBGA68_BOEHM_GC_LIBS='' +else + LIBGA68_GCFLAGS='-DLIBGA68_WITH_GC=1' + LIBGA68_BOEHM_GC_INCLUDES=$BDW_GC_CFLAGS + LIBGA68_BOEHM_GC_LIBS=$BDW_GC_LIBS + SPEC_LIBGA68_DEPS="$SPEC_LIBGA68_DEPS $BDW_GC_LIBS" +fi + +extra_darwin_ldflags_libga68= +case $host in + *-*-darwin*) + extra_darwin_ldflags_libga68=-Wl,-U,___algol68_main + if test -f $bdw_lib_dir/libgc.a; then + # Darwin wants to link this statically into the library + LIBGA68_BOEHM_GC_LIBS="$bdw_lib_dir/libgc.a" + # No spec entry. + BDW_GC_LIBS= + fi + ;; + *) ;; +esac +AC_SUBST(extra_darwin_ldflags_libga68) + +# Subst some variables used in Makefile.am +AC_SUBST(LIBGA68_GCFLAGS) +AC_SUBST(LIBGA68_BOEHM_GC_INCLUDES) +AC_SUBST(LIBGA68_BOEHM_GC_LIBS) + +# Output files and be done. +AC_CONFIG_SRCDIR([Makefile.am]) +AC_CONFIG_FILES([Makefile]) +AC_CONFIG_FILES(libga68.spec) +AC_MSG_NOTICE([libga68 has been configured.]) +AC_OUTPUT
