--- build/make/Makefile.orig	2014-12-05 11:21:21.000000000 -0800
+++ build/make/Makefile	2014-12-05 11:25:52.000000000 -0800
@@ -158,7 +158,7 @@ $(BUILD_PFX)%.s.o: %.s
 	$(qexec)$(AS) $(ASFLAGS) -o $@ $<
 
 .PRECIOUS: %.c.S
-%.c.S: CFLAGS += -DINLINE_ASM
+%.c.S: CFLAGS += -DINLINE_ASM $(CFLAGS_S)
 $(BUILD_PFX)%.c.S: %.c
 	$(if $(quiet),@echo "    [GEN] $@")
 	$(qexec)$(CC) -S $(CFLAGS) -o $@ $<