[PATCH] ppc32: add gcc-3.4+binutils-2.14 check

Add a build-time check for gcc-3.4 and binutils-2.14.  They don't play well
together.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc/Makefile

@@ -108,17 +108,24 @@ GOODVER	:= 2.12.1
 else
 NEW_AS	:= 0
 endif
+# gcc-3.4 and binutils-2.14 are a fatal combination.
+GCC_VERSION	:= $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
+BAD_GCC_AS	:= $(shell echo mftb 5 | $(AS) -mppc -many -o /dev/null >/dev/null 2>&1 && echo 0 || echo 1)
 
-ifneq ($(NEW_AS),0)
 checkbin:
+ifeq ($(GCC_VERSION)$(BAD_GCC_AS),03041)
+	@echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '
+	@echo 'correctly with gcc-3.4 and your version of binutils.'
+	@echo '*** Please upgrade your binutils or downgrade your gcc'
+	@false
+endif
+ifneq ($(NEW_AS),0)
 	@echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '
 	@echo 'correctly with old versions of binutils.'
 	@echo '*** Please upgrade your binutils to ${GOODVER} or newer'
 	@false
-else
-checkbin:
-	@true
 endif
+	@true
 
 CLEAN_FILES +=	include/asm-$(ARCH)/offsets.h \
 		arch/$(ARCH)/kernel/asm-offsets.s