re PR tree-optimization/36218 (VRP causes stack overflow while building libgcj)

PR tree-optimization/36218
	* Makefile.def (flags_to_pass): Add LDFLAGS_FOR_BUILD.
	* Makefile.tpl (EXTRA_BUILD_FLAGS): Define.
	(all prefix="build-"): Pass them to build-system sub-makes.
	* Makefile.in: Regenerate.

config:
	* config/mh-mingw (LDFLAGS): Define.

gcc:
	* configure.ac: Use LDFLAGS="${LDFLAGS_FOR_BUILD}" when running
	configure for the build system.
	(BUILD_LDFLAGS): Define.
	* configure: Regenerate.
	* Makefile.in (BUILD_LDFLAGS): Define to @BUILD_LDFLAGS@.

From-SVN: r136563

ChangeLog

@@ -1,3 +1,11 @@
+2008-06-08  Joseph Myers  <joseph@codesourcery.com>
+
+	PR tree-optimization/36218
+	* Makefile.def (flags_to_pass): Add LDFLAGS_FOR_BUILD.
+	* Makefile.tpl (EXTRA_BUILD_FLAGS): Define.
+	(all prefix="build-"): Pass them to build-system sub-makes.
+	* Makefile.in: Regenerate.
+
 2008-06-07  Joseph Myers  <joseph@codesourcery.com>
 
 	* MAINTAINERS (mt port): Remove.

Makefile.def

@@ -215,6 +215,7 @@ flags_to_pass = { flag= INSTALL ; };
 flags_to_pass = { flag= INSTALL_DATA ; };
 flags_to_pass = { flag= INSTALL_PROGRAM ; };
 flags_to_pass = { flag= INSTALL_SCRIPT ; };
+flags_to_pass = { flag= LDFLAGS_FOR_BUILD ; };
 flags_to_pass = { flag= LEX ; };
 flags_to_pass = { flag= M4 ; };
 flags_to_pass = { flag= MAKE ; };

Makefile.in

@@ -144,6 +144,12 @@ BUILD_EXPORTS = \
 	WINDRES="$(WINDRES_FOR_BUILD)"; export WINDRES; \
 	WINDMC="$(WINDMC_FOR_BUILD)"; export WINDMC;
 
+# These variables must be set on the make command line for directories
+# built for the build system to override those in BASE_FLAGS_TO_PASSS.
+EXTRA_BUILD_FLAGS = \
+	CFLAGS="$(CFLAGS_FOR_BUILD)" \
+	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+
 # This is the list of directories to built for the host system.
 SUBDIRS = @configdirs@
 # This is set by the configure script to the arguments to use when configuring
@@ -499,6 +505,7 @@ BASE_FLAGS_TO_PASS = \
 	"INSTALL_DATA=$(INSTALL_DATA)" \
 	"INSTALL_PROGRAM=$(INSTALL_PROGRAM)" \
 	"INSTALL_SCRIPT=$(INSTALL_SCRIPT)" \
+	"LDFLAGS_FOR_BUILD=$(LDFLAGS_FOR_BUILD)" \
 	"LEX=$(LEX)" \
 	"M4=$(M4)" \
 	"MAKE=$(MAKE)" \
@@ -2762,7 +2769,7 @@ all-build-libiberty: configure-build-libiberty
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/libiberty && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-libiberty))
 @endif build-libiberty
 
@@ -2818,7 +2825,7 @@ all-build-bison: configure-build-bison
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/bison && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-bison))
 @endif build-bison
 
@@ -2874,7 +2881,7 @@ all-build-byacc: configure-build-byacc
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/byacc && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-byacc))
 @endif build-byacc
 
@@ -2930,7 +2937,7 @@ all-build-flex: configure-build-flex
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/flex && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-flex))
 @endif build-flex
 
@@ -2986,7 +2993,7 @@ all-build-m4: configure-build-m4
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/m4 && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-m4))
 @endif build-m4
 
@@ -3042,7 +3049,7 @@ all-build-texinfo: configure-build-texinfo
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/texinfo && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-texinfo))
 @endif build-texinfo
 
@@ -3098,7 +3105,7 @@ all-build-fixincludes: configure-build-fixincludes
 	s=`cd $(srcdir); ${PWD_COMMAND}`; export s; \
 	$(BUILD_EXPORTS) \
 	(cd $(BUILD_SUBDIR)/fixincludes && \
-	  $(MAKE) $(BASE_FLAGS_TO_PASS)   \
+	  $(MAKE) $(BASE_FLAGS_TO_PASS) $(EXTRA_BUILD_FLAGS)  \
 		$(TARGET-build-fixincludes))
 @endif build-fixincludes
 

Makefile.tpl

@@ -147,6 +147,12 @@ BUILD_EXPORTS = \
 	WINDRES="$(WINDRES_FOR_BUILD)"; export WINDRES; \
 	WINDMC="$(WINDMC_FOR_BUILD)"; export WINDMC;
 
+# These variables must be set on the make command line for directories
+# built for the build system to override those in BASE_FLAGS_TO_PASSS.
+EXTRA_BUILD_FLAGS = \
+	CFLAGS="$(CFLAGS_FOR_BUILD)" \
+	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+
 # This is the list of directories to built for the host system.
 SUBDIRS = @configdirs@
 # This is set by the configure script to the arguments to use when configuring
@@ -955,7 +961,8 @@ clean-stage[+id+]-[+prefix+][+module+]:
 	     target_alias=(get "target" "${target_alias}")
 	     args="$(BUILD_CONFIGARGS)" no-config-site=true +]
 
-[+ all prefix="build-" subdir="$(BUILD_SUBDIR)" exports="$(BUILD_EXPORTS)" +]
+[+ all prefix="build-" subdir="$(BUILD_SUBDIR)" exports="$(BUILD_EXPORTS)"
+	     args="$(EXTRA_BUILD_FLAGS)" +]
 [+ ENDFOR build_module +]
 
 # --------------------------------------

config/ChangeLog

@@ -1,3 +1,8 @@
+2008-06-08  Joseph Myers  <joseph@codesourcery.com>
+
+	PR tree-optimization/36218
+	* config/mh-mingw (LDFLAGS): Define.
+
 2008-06-05  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	PR driver/35916

config/mh-mingw

@@ -2,3 +2,5 @@
 # Vista (see PR33281 for details).
 BOOT_CFLAGS += -D__USE_MINGW_ACCESS
 CFLAGS += -D__USE_MINGW_ACCESS
+# Increase stack limit to same as Linux default.
+LDFLAGS = -Wl,--stack,8388608

gcc/ChangeLog

@@ -1,3 +1,12 @@
+2008-06-08  Joseph Myers  <joseph@codesourcery.com>
+
+	PR tree-optimization/36218
+	* configure.ac: Use LDFLAGS="${LDFLAGS_FOR_BUILD}" when running
+	configure for the build system.
+	(BUILD_LDFLAGS): Define.
+	* configure: Regenerate.
+	* Makefile.in (BUILD_LDFLAGS): Define to @BUILD_LDFLAGS@.
+
 2008-07-08  Anatoly Sokolov  <aesok@post.ru>
 
 	PR target/36424

gcc/Makefile.in

@@ -662,7 +662,7 @@ CC_FOR_BUILD = @CC_FOR_BUILD@
 BUILD_CFLAGS= @BUILD_CFLAGS@ -DGENERATOR_FILE
 
 # Native linker and preprocessor flags.  For x-fragment overrides.
-BUILD_LDFLAGS=$(LDFLAGS)
+BUILD_LDFLAGS=@BUILD_LDFLAGS@
 BUILD_CPPFLAGS=$(ALL_CPPFLAGS)
 
 # Actual name to use when installing a native compiler.

gcc/configure

@@ -458,7 +458,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os target_noncanonical build_libsubdir build_subdir host_subdir target_subdir GENINSRC CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT GNATBIND ac_ct_GNATBIND GNATMAKE ac_ct_GNATMAKE NO_MINUS_C_MINUS_O OUTPUT_OPTION CPP EGREP loose_warn cxx_compat_warn strict_warn warn_cflags nocommon_flag TREEBROWSER valgrind_path valgrind_path_defines valgrind_command coverage_flags enable_multilib enable_decimal_float enable_fixed_point enable_shared TARGET_SYSTEM_ROOT TARGET_SYSTEM_ROOT_DEFINE CROSS_SYSTEM_HEADER_DIR onestep PKGVERSION REPORT_BUGS_TO REPORT_BUGS_TEXI datarootdir docdir htmldir SET_MAKE AWK LN_S LN RANLIB ac_ct_RANLIB ranlib_flags INSTALL INSTALL_PROGRAM INSTALL_DATA make_compare_target have_mktemp_command MAKEINFO BUILD_INFO GENERATED_MANPAGES FLEX BISON NM AR COLLECT2_LIBS GNAT_LIBEXC LDEXP_LIB TARGET_GETGROUPS_T LIBICONV LTLIBICONV LIBICONV_DEP manext objext gthread_flags extra_modes_file extra_opt_files USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS DATADIRNAME INSTOBJEXT GENCAT CATOBJEXT host_cc_for_libada CROSS ALL SYSTEM_HEADER_DIR inhibit_libc CC_FOR_BUILD BUILD_CFLAGS STMP_FIXINC STMP_FIXPROTO collect2 LIBTOOL SED FGREP GREP LD DUMPBIN ac_ct_DUMPBIN ac_ct_AR STRIP ac_ct_STRIP lt_ECHO objdir enable_fast_install gcc_cv_as ORIGINAL_AS_FOR_TARGET gcc_cv_ld ORIGINAL_LD_FOR_TARGET gcc_cv_nm ORIGINAL_NM_FOR_TARGET gcc_cv_objdump libgcc_visibility GGC zlibdir zlibinc MAINT gcc_tooldir dollar slibdir subdirs srcdir all_compilers all_gtfiles all_lang_makefrags all_lang_makefiles all_languages all_selected_languages build_exeext build_install_headers_dir build_xm_file_list build_xm_include_list build_xm_defines build_file_translate check_languages cpp_install_dir xmake_file tmake_file extra_gcc_objs extra_headers_list extra_objs extra_parts extra_passes extra_programs float_h_file gcc_config_arguments gcc_gxx_include_dir host_exeext host_xm_file_list host_xm_include_list host_xm_defines out_host_hook_obj install lang_opt_files lang_specs_files lang_tree_files local_prefix md_file objc_boehm_gc out_file out_object_file thread_file tm_file_list tm_include_list tm_defines tm_p_file_list tm_p_include_list xm_file_list xm_include_list xm_defines c_target_objs cxx_target_objs fortran_target_objs target_cpu_default GMPLIBS GMPINC LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os target_noncanonical build_libsubdir build_subdir host_subdir target_subdir GENINSRC CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT GNATBIND ac_ct_GNATBIND GNATMAKE ac_ct_GNATMAKE NO_MINUS_C_MINUS_O OUTPUT_OPTION CPP EGREP loose_warn cxx_compat_warn strict_warn warn_cflags nocommon_flag TREEBROWSER valgrind_path valgrind_path_defines valgrind_command coverage_flags enable_multilib enable_decimal_float enable_fixed_point enable_shared TARGET_SYSTEM_ROOT TARGET_SYSTEM_ROOT_DEFINE CROSS_SYSTEM_HEADER_DIR onestep PKGVERSION REPORT_BUGS_TO REPORT_BUGS_TEXI datarootdir docdir htmldir SET_MAKE AWK LN_S LN RANLIB ac_ct_RANLIB ranlib_flags INSTALL INSTALL_PROGRAM INSTALL_DATA make_compare_target have_mktemp_command MAKEINFO BUILD_INFO GENERATED_MANPAGES FLEX BISON NM AR COLLECT2_LIBS GNAT_LIBEXC LDEXP_LIB TARGET_GETGROUPS_T LIBICONV LTLIBICONV LIBICONV_DEP manext objext gthread_flags extra_modes_file extra_opt_files USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS DATADIRNAME INSTOBJEXT GENCAT CATOBJEXT host_cc_for_libada CROSS ALL SYSTEM_HEADER_DIR inhibit_libc CC_FOR_BUILD BUILD_CFLAGS BUILD_LDFLAGS STMP_FIXINC STMP_FIXPROTO collect2 LIBTOOL SED FGREP GREP LD DUMPBIN ac_ct_DUMPBIN ac_ct_AR STRIP ac_ct_STRIP lt_ECHO objdir enable_fast_install gcc_cv_as ORIGINAL_AS_FOR_TARGET gcc_cv_ld ORIGINAL_LD_FOR_TARGET gcc_cv_nm ORIGINAL_NM_FOR_TARGET gcc_cv_objdump libgcc_visibility GGC zlibdir zlibinc MAINT gcc_tooldir dollar slibdir subdirs srcdir all_compilers all_gtfiles all_lang_makefrags all_lang_makefiles all_languages all_selected_languages build_exeext build_install_headers_dir build_xm_file_list build_xm_include_list build_xm_defines build_file_translate check_languages cpp_install_dir xmake_file tmake_file extra_gcc_objs extra_headers_list extra_objs extra_parts extra_passes extra_programs float_h_file gcc_config_arguments gcc_gxx_include_dir host_exeext host_xm_file_list host_xm_include_list host_xm_defines out_host_hook_obj install lang_opt_files lang_specs_files lang_tree_files local_prefix md_file objc_boehm_gc out_file out_object_file thread_file tm_file_list tm_include_list tm_defines tm_p_file_list tm_p_include_list xm_file_list xm_include_list xm_defines c_target_objs cxx_target_objs fortran_target_objs target_cpu_default GMPLIBS GMPINC LIBOBJS LTLIBOBJS'
 ac_subst_files='language_hooks'
 
 # Initialize some variables set by options.
@@ -868,13 +868,13 @@ echo X"$0" |
   	  /^X\(\/\).*/{ s//\1/; q; }
   	  s/.*/./; q'`
   srcdir=$ac_confdir
-  if test ! -r "$srcdir/$ac_unique_file"; then
+  if test ! -r $srcdir/$ac_unique_file; then
     srcdir=..
   fi
 else
   ac_srcdir_defaulted=no
 fi
-if test ! -r "$srcdir/$ac_unique_file"; then
+if test ! -r $srcdir/$ac_unique_file; then
   if test "$ac_srcdir_defaulted" = yes; then
     { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
    { (exit 1); exit 1; }; }
@@ -883,7 +883,7 @@ if test ! -r "$srcdir/$ac_unique_file"; then
    { (exit 1); exit 1; }; }
   fi
 fi
-(cd $srcdir && test -r "./$ac_unique_file") 2>/dev/null ||
+(cd $srcdir && test -r ./$ac_unique_file) 2>/dev/null ||
   { echo "$as_me: error: sources are in $srcdir, but \`cd $srcdir' does not work" >&2
    { (exit 1); exit 1; }; }
 srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
@@ -13571,6 +13571,7 @@ else
 	esac
 	saved_CFLAGS="${CFLAGS}"
 	CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
+	LDFLAGS="${LDFLAGS_FOR_BUILD}" \
 	${realsrcdir}/configure \
 		--enable-languages=${enable_languages-all} \
 		--target=$target_alias --host=$build_alias --build=$build_alias
@@ -14068,6 +14069,7 @@ fi
 # These are the normal (build=host) settings:
 CC_FOR_BUILD='$(CC)'
 BUILD_CFLAGS='$(ALL_CFLAGS)'
+BUILD_LDFLAGS='$(LDFLAGS)'
 STMP_FIXINC=stmp-fixinc
 
 # Possibly disable fixproto, on a per-target basis.
@@ -14085,6 +14087,7 @@ esac
 if test x$build != x$host || test "x$coverage_flags" != x
 then
     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
+    BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
 
     if test "x$TARGET_SYSTEM_ROOT" = x; then
 	if test "x$STMP_FIXPROTO" != x; then
@@ -14663,13 +14666,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:14666: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:14669: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:14669: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:14672: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:14672: output\"" >&5)
+  (eval echo "\"\$as_me:14675: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -15724,7 +15727,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 15727 "configure"' > conftest.$ac_ext
+  echo '#line 15730 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -16344,11 +16347,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16347: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16350: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:16351: \$? = $ac_status" >&5
+   echo "$as_me:16354: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -16666,11 +16669,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16669: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16672: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:16673: \$? = $ac_status" >&5
+   echo "$as_me:16676: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -16771,11 +16774,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16774: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16777: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:16778: \$? = $ac_status" >&5
+   echo "$as_me:16781: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -16826,11 +16829,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:16829: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16832: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:16833: \$? = $ac_status" >&5
+   echo "$as_me:16836: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -19623,7 +19626,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19626 "configure"
+#line 19629 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19723,7 +19726,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 19726 "configure"
+#line 19729 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -24559,6 +24562,7 @@ s,@SYSTEM_HEADER_DIR@,$SYSTEM_HEADER_DIR,;t t
 s,@inhibit_libc@,$inhibit_libc,;t t
 s,@CC_FOR_BUILD@,$CC_FOR_BUILD,;t t
 s,@BUILD_CFLAGS@,$BUILD_CFLAGS,;t t
+s,@BUILD_LDFLAGS@,$BUILD_LDFLAGS,;t t
 s,@STMP_FIXINC@,$STMP_FIXINC,;t t
 s,@STMP_FIXPROTO@,$STMP_FIXPROTO,;t t
 s,@collect2@,$collect2,;t t

gcc/configure.ac

@@ -1460,6 +1460,7 @@ else
 	esac
 	saved_CFLAGS="${CFLAGS}"
 	CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD}" \
+	LDFLAGS="${LDFLAGS_FOR_BUILD}" \
 	${realsrcdir}/configure \
 		--enable-languages=${enable_languages-all} \
 		--target=$target_alias --host=$build_alias --build=$build_alias
@@ -1756,6 +1757,7 @@ AC_SUBST(inhibit_libc)
 # These are the normal (build=host) settings:
 CC_FOR_BUILD='$(CC)'		AC_SUBST(CC_FOR_BUILD)
 BUILD_CFLAGS='$(ALL_CFLAGS)'	AC_SUBST(BUILD_CFLAGS)
+BUILD_LDFLAGS='$(LDFLAGS)'	AC_SUBST(BUILD_LDFLAGS)
 STMP_FIXINC=stmp-fixinc		AC_SUBST(STMP_FIXINC)
 
 # Possibly disable fixproto, on a per-target basis.
@@ -1773,6 +1775,7 @@ AC_SUBST(STMP_FIXPROTO)
 if test x$build != x$host || test "x$coverage_flags" != x
 then
     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
+    BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
 
     if test "x$TARGET_SYSTEM_ROOT" = x; then
 	if test "x$STMP_FIXPROTO" != x; then