# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1994-2016 Free Software Foundation, Inc.
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
# Originally contributed by Dave Love (d.love@dl.ac.uk).
#
#This file is part of GCC.
#along with GCC; see the file COPYING3. If not see
#<http://www.gnu.org/licenses/>.
-AC_PREREQ(2.64)
AC_INIT(package-unused, version-unused,, libobjc)
AC_CONFIG_SRCDIR([objc/objc.h])
GCC_TOPLEV_SUBDIRS
[version_specific_libs=no])
AC_MSG_RESULT($version_specific_libs)
-AC_ARG_ENABLE(objc-gc,
-[ --enable-objc-gc enable the use of Boehm's garbage collector with
- the GNU Objective-C runtime.],
-[case $enable_objc_gc in
- no)
- OBJC_GCFLAGS=''
- OBJC_BOEHM_GC=''
- OBJC_BOEHM_GC_INCLUDES=''
- ;;
- *)
- OBJC_GCFLAGS='-DOBJC_WITH_GC=1'
- OBJC_BOEHM_GC='libobjc_gc$(libsuffix).la'
- OBJC_BOEHM_GC_INCLUDES='-I$(top_srcdir)/../boehm-gc/include -I../boehm-gc/include'
- ;;
-esac],
-[OBJC_GCFLAGS=''; OBJC_BOEHM_GC=''; OBJC_BOEHM_GC_INCLUDES=''])
-AC_SUBST(OBJC_GCFLAGS)
-AC_SUBST(OBJC_BOEHM_GC)
-AC_SUBST(OBJC_BOEHM_GC_INCLUDES)
-
# -----------
# Directories
# -----------
esac
AC_SUBST(extra_ldflags_libobjc)
+# Add CET specific flags if CET is enabled
+GCC_CET_FLAGS(CET_FLAGS)
+XCFLAGS="$XCFLAGS $CET_FLAGS"
+
AC_SUBST(CFLAGS)
+AC_SUBST(XCFLAGS)
AC_CHECK_TOOL(AS, as)
AC_CHECK_TOOL(AR, ar)
gt_BITFIELD_TYPE_MATTERS
+# -----------
+# boehm-gc
+# -----------
+
+AC_ARG_ENABLE(objc-gc,
+[AS_HELP_STRING([--enable-objc-gc],
+ [enable use of Boehm's garbage collector with the
+ GNU Objective-C runtime])],,enable_objc_gc=no)
+AC_ARG_WITH([target-bdw-gc],
+[AS_HELP_STRING([--with-target-bdw-gc=PATHLIST],
+ [specify prefix directory for installed bdw-gc package.
+ Equivalent to --with-target-bdw-gc-include=PATH/include
+ plus --with-target-bdw-gc-lib=PATH/lib])])
+AC_ARG_WITH([target-bdw-gc-include],
+[AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST],
+ [specify directories for installed bdw-gc include files])])
+AC_ARG_WITH([target-bdw-gc-lib],
+[AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST],
+ [specify directories for installed bdw-gc library])])
+
+case "$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
# ------
projects / thirdparty / gcc.git / blobdiff