diff --git a/common/build_style/gnu-makefile.sh b/common/build_style/gnu-makefile.sh
index d910011784..1c2a450dc8 100644
--- a/common/build_style/gnu-makefile.sh
+++ b/common/build_style/gnu-makefile.sh
@@ -7,6 +7,7 @@ do_build() {
 	${make_cmd} \
 		CC="$CC" CXX="$CXX" LD="$LD" AR="$AR" RANLIB="$RANLIB" \
 		CPP="$CPP" AS="$AS" OBJDUMP="$OBJDUMP" STRIP="$STRIP" \
+		CFLAGS="$CFLAGS" CXXFLAGS="$CXXFLAGS" LDFLAGS="$LDFLAGS" \
 		${makejobs} ${make_build_args} ${make_build_target}
 }