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@.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@136563 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 7 deletions

diff --git a/Makefile.in b/Makefile.in
index 16b94cfeef5..1bd87fd52cb 100644
--- a/Makefile.in
+++ b/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