-CFLAGS += \
- -Wall -Wshadow -Wno-error -Wundef \
- -Wold-style-definition \
- -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations \
- -funsigned-char -fno-builtin-strlen -finline-limit=0 -static-libgcc \
- -Os -falign-functions=1 -falign-jumps=1 -falign-loops=1 \
- -fomit-frame-pointer -ffunction-sections -fdata-sections
+# flag checks are grouped together to speed the checks up a bit..
+CFLAGS += $(call cc-option,-Wall -Wshadow,)
+CFLAGS += $(call cc-option,-Wundef -Wold-style-definition -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations,)
+CFLAGS += $(call cc-option,-Os -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer -ffunction-sections -fdata-sections,)
+CFLAGS += $(call cc-option,-static-libgcc -funsigned-char,)
+CFLAGS += $(call cc-option,-falign-functions=1 -falign-jumps=1 -falign-loops=1,)
+