Makefile

@@ -20,7 +20,7 @@ endif
 LIBDIR := /lib
 INCLUDEDIR := /usr/include
 PKGCONFIGDIR := /usr/lib/pkgconfig
-CFLAGS ?= -ggdb3 -O2 -Wall
+CFLAGS := -ggdb3 -O2 -Wall
 CPPFLAGS := -Iinclude -Iarch/${ARCH} -Iarch/common
 ifneq ($(shell uname),Darwin)
 	EXPORT_UNPREFIXED := yes
@@ -31,12 +31,12 @@ endif
 FREESTANDING := no
 
 ifeq ($(FREESTANDING),yes)
-	CPPFLAGS += -DFREESTANDING
+	CFLAGS += -DFREESTANDING
 	EXPORT_UNPREFIXED = no
 endif
 
 ifeq ($(EXPORT_UNPREFIXED),yes)
-	CPPFLAGS += -DEXPORT_UNPREFIXED
+	CFLAGS += -DEXPORT_UNPREFIXED
 endif
 
 LIBUCONTEXT_C_SRC = $(wildcard arch/${ARCH}/*.c)