diff --git a/pkgs/development/compilers/gcc-4.1/pass-cxxcpp.patch b/pkgs/development/compilers/gcc-4.1/pass-cxxcpp.patch
index 4f9a29ae51bb..9b0676d4fdc9 100644
--- a/pkgs/development/compilers/gcc-4.1/pass-cxxcpp.patch
+++ b/pkgs/development/compilers/gcc-4.1/pass-cxxcpp.patch
@@ -14,7 +14,7 @@ diff -rc gcc-orig/Makefile.in gcc-4.1.1/Makefile.in
   RAW_CXX_TARGET_EXPORTS = \
   	$(BASE_TARGET_EXPORTS) \
   	CXX_FOR_TARGET="$(RAW_CXX_FOR_TARGET)"; export CXX_FOR_TARGET; \
-! 	CXX="$(RAW_CXX_FOR_TARGET)"; export CXX; \
+! 	CXX="$(RAW_CXX_FOR_TARGET) $(CFLAGS_FOR_BUILD)"; export CXX; \
 ! 	CXXCPP="$(RAW_CXX_FOR_TARGET) $(CFLAGS_FOR_BUILD) -E"; export CXXCPP;
   
   NORMAL_TARGET_EXPORTS = \