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-rw-r--r--pc-bios/optionrom/Makefile5
1 files changed, 1 insertions, 4 deletions
diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile
index 9bdc4979..afa48f1 100644
--- a/pc-bios/optionrom/Makefile
+++ b/pc-bios/optionrom/Makefile
@@ -10,10 +10,7 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/optionrom)
.PHONY : all clean build-all
# Compiling with no optimization creates ROMs that are too large
-ifeq ($(filter -O%, $(CFLAGS)),)
-override CFLAGS += -O2
-endif
-ifeq ($(filter -O%, $(CFLAGS)),-O0)
+ifeq ($(lastword $(filter -O%, -O0 $(CFLAGS))),-O0)
override CFLAGS += -O2
endif