gcc: compile libgcc and libstdc++ with -O2 instead of -Os on power pc to avoid generating references to gpr save/restore functions which cannot yet be resolved at this point

SVN-Revision: 18177

toolchain/gcc/Makefile

@@ -151,6 +151,10 @@ GCC_CONFIGURE_STAGE2:= \
 		--disable-tls \
 		--with-slibdir=$(TOOLCHAIN_DIR)/lib \
 
+ifdef CONFIG_powerpc
+  TARGET_CFLAGS := $(patsubst -Os,-O2,$(TARGET_CFLAGS))
+endif
+
 GCC_MAKE:= \
 	export SHELL="$(BASH)"; \
 	$(MAKE) \