mirror of
https://github.com/gcc-mirror/gcc.git
synced 2024-11-21 13:40:47 +00:00
406 lines
12 KiB
Plaintext
406 lines
12 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
|
||
# Copyright (C) 1994-2024 Free Software Foundation, Inc.
|
||
# Originally contributed by Dave Love (d.love@dl.ac.uk).
|
||
#
|
||
#This file is part of GCC.
|
||
#
|
||
#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/>.
|
||
|
||
AC_INIT(package-unused, version-unused,, libobjc)
|
||
AC_CONFIG_SRCDIR([objc/objc.h])
|
||
AC_CONFIG_MACRO_DIRS([../config] [..])
|
||
GCC_TOPLEV_SUBDIRS
|
||
|
||
# We need the following definitions because AC_PROG_LIBTOOL relies on them
|
||
PACKAGE=libobjc
|
||
# Version is pulled out to make it a bit easier to change using sed.
|
||
VERSION=4:0:0
|
||
AC_SUBST(VERSION)
|
||
|
||
# This works around the fact that libtool configuration may change LD
|
||
# for this particular configuration, but some shells, instead of
|
||
# keeping the changes in LD private, export them just because LD is
|
||
# exported.
|
||
ORIGINAL_LD_FOR_MULTILIBS=$LD
|
||
|
||
# -------
|
||
# Options
|
||
# -------
|
||
|
||
# We use these options to decide which functions to include.
|
||
AC_ARG_WITH(target-subdir,
|
||
[ --with-target-subdir=SUBDIR
|
||
configuring in a subdirectory])
|
||
AC_ARG_WITH(cross-host,
|
||
[ --with-cross-host=HOST configuring with a cross compiler])
|
||
|
||
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
|
||
AC_ARG_ENABLE(version-specific-runtime-libs,
|
||
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
|
||
[case "$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)
|
||
|
||
# -----------
|
||
# Directories
|
||
# -----------
|
||
|
||
# Find the rest of the source tree framework.
|
||
AM_ENABLE_MULTILIB(, ..)
|
||
|
||
AC_CANONICAL_SYSTEM
|
||
ACX_NONCANONICAL_TARGET
|
||
|
||
# Export source directory.
|
||
# These need to be absolute paths, yet at the same time need to
|
||
# canonicalize only relative paths, because then amd will not unmount
|
||
# drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
|
||
case $srcdir in
|
||
[\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
|
||
*) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
|
||
esac
|
||
AC_SUBST(glibcpp_srcdir)
|
||
|
||
GCC_WITH_TOOLEXECLIBDIR
|
||
|
||
# Calculate toolexeclibdir
|
||
# Also toolexecdir, though it's only used in toolexeclibdir
|
||
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)'
|
||
case ${with_toolexeclibdir} in
|
||
no)
|
||
toolexeclibdir='$(toolexecdir)/lib'
|
||
;;
|
||
*)
|
||
toolexeclibdir=${with_toolexeclibdir}
|
||
;;
|
||
esac
|
||
else
|
||
toolexecdir='$(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/$multi_os_directory ;;
|
||
esac
|
||
;;
|
||
esac
|
||
AC_SUBST(toolexecdir)
|
||
AC_SUBST(toolexeclibdir)
|
||
|
||
# Figure out if we want to name the include directory and the
|
||
# library name changes differently.
|
||
includedirname=include
|
||
libsuffix=
|
||
case "${host}" in
|
||
*-darwin*)
|
||
# Darwin is the only target so far that needs a different include directory.
|
||
includedirname=include-gnu-runtime
|
||
libsuffix=-gnu
|
||
;;
|
||
esac
|
||
AC_SUBST(includedirname)
|
||
AC_SUBST(libsuffix)
|
||
|
||
AC_CONFIG_HEADERS(config.h)
|
||
|
||
# --------
|
||
# Programs
|
||
# --------
|
||
|
||
GCC_NO_EXECUTABLES
|
||
|
||
# We must force CC to /not/ be a precious variable; 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
|
||
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
|
||
|
||
# extra LD Flags which are required for targets
|
||
ACX_LT_HOST_FLAGS
|
||
|
||
# Add CET specific flags if CET is enabled
|
||
GCC_CET_FLAGS(CET_FLAGS)
|
||
XCFLAGS="$XCFLAGS $CET_FLAGS"
|
||
|
||
AC_SUBST(CFLAGS)
|
||
AC_SUBST(XCFLAGS)
|
||
|
||
AC_CHECK_TOOL(AS, as)
|
||
AC_CHECK_TOOL(AR, ar)
|
||
AC_CHECK_TOOL(RANLIB, ranlib, :)
|
||
AC_PROG_INSTALL
|
||
|
||
AM_MAINTAINER_MODE
|
||
|
||
# Enable Win32 DLL on MS Windows - FIXME
|
||
AC_LIBTOOL_WIN32_DLL
|
||
|
||
AC_PROG_LIBTOOL
|
||
|
||
AM_PROG_CC_C_O
|
||
|
||
AC_PROG_MAKE_SET
|
||
|
||
AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes])
|
||
|
||
# Must come after libtool is initialized.
|
||
case "${host}" in
|
||
*-darwin[[4567]]*)
|
||
# Earlier Darwin versions need -single_module when linking libobjc; they
|
||
# do not support @rpath.
|
||
extra_ldflags_libobjc='$(lt_host_flags) -Wl,-single_module'
|
||
;;
|
||
*-darwin*)
|
||
# Otherwise, single_module is the default and multi-module is ignored and
|
||
# obsolete.
|
||
extra_ldflags_libobjc='$(lt_host_flags)'
|
||
if test "x$enable_darwin_at_rpath" = "xyes"; then
|
||
extra_ldflags_libobjc="${extra_ldflags_libobjc} -Wc,-nodefaultrpaths"
|
||
extra_ldflags_libobjc="${extra_ldflags_libobjc} -Wl,-rpath,@loader_path"
|
||
fi
|
||
;;
|
||
*-cygwin*|*-mingw*)
|
||
# Tell libtool to build DLLs on Windows
|
||
extra_ldflags_libobjc='$(lt_host_flags)'
|
||
;;
|
||
esac
|
||
AC_SUBST(extra_ldflags_libobjc)
|
||
|
||
# -------
|
||
# Headers
|
||
# -------
|
||
|
||
# Sanity check for the cross-compilation case:
|
||
AC_CHECK_HEADER(stdio.h,:,
|
||
[AC_MSG_ERROR([Can't find stdio.h.
|
||
You must have a usable C system for the target already installed, at least
|
||
including headers and, preferably, the library, before you can configure
|
||
the Objective C runtime system. If necessary, install gcc now with
|
||
\`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])])
|
||
|
||
AC_HEADER_STDC
|
||
|
||
AC_CHECK_HEADERS(sched.h)
|
||
|
||
# -----------
|
||
# Miscellanea
|
||
# -----------
|
||
|
||
# Check if we have thread-local storage
|
||
GCC_CHECK_TLS
|
||
|
||
gt_BITFIELD_TYPE_MATTERS
|
||
|
||
# -----------
|
||
# boehm-gc
|
||
# -----------
|
||
|
||
AC_ARG_ENABLE(objc-gc,
|
||
[AS_HELP_STRING([--enable-objc-gc],
|
||
[enable use of Boehm's garbage collector with the
|
||
GNU Objective-C runtime])],,enable_objc_gc=no)
|
||
AC_ARG_WITH([target-bdw-gc],
|
||
[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
|
||
[specify prefix directory for installed bdw-gc package.
|
||
Equivalent to --with-target-bdw-gc-include=PATH/include
|
||
plus --with-target-bdw-gc-lib=PATH/lib])])
|
||
AC_ARG_WITH([target-bdw-gc-include],
|
||
[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
|
||
[specify directories for installed bdw-gc include files])])
|
||
AC_ARG_WITH([target-bdw-gc-lib],
|
||
[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
|
||
[specify directories for installed bdw-gc library])])
|
||
|
||
case "$enable_objc_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_objc_gc = xauto && test x$system_bdw_gc_found = xno; then
|
||
AC_MSG_WARN([system bdw-gc not found, not building libobjc_gc])
|
||
use_bdw_gc=no
|
||
elif test x$enable_objc_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
|
||
OBJC_GCFLAGS=''
|
||
OBJC_BOEHM_GC=''
|
||
OBJC_BOEHM_GC_INCLUDES=''
|
||
OBJC_BOEHM_GC_LIBS=''
|
||
else
|
||
OBJC_GCFLAGS='-DOBJC_WITH_GC=1'
|
||
OBJC_BOEHM_GC='libobjc_gc$(libsuffix).la'
|
||
OBJC_BOEHM_GC_INCLUDES=$BDW_GC_CFLAGS
|
||
OBJC_BOEHM_GC_LIBS=$BDW_GC_LIBS
|
||
fi
|
||
AC_SUBST(OBJC_GCFLAGS)
|
||
AC_SUBST(OBJC_BOEHM_GC)
|
||
AC_SUBST(OBJC_BOEHM_GC_INCLUDES)
|
||
AC_SUBST(OBJC_BOEHM_GC_LIBS)
|
||
|
||
# Determine what GCC version number to use in filesystem paths.
|
||
GCC_BASE_VER
|
||
|
||
# ------
|
||
# Output
|
||
# ------
|
||
|
||
if test ${multilib} = yes; then
|
||
multilib_arg="--enable-multilib"
|
||
else
|
||
multilib_arg=
|
||
fi
|
||
|
||
AC_CONFIG_FILES([Makefile])
|
||
AC_OUTPUT
|