-CFLAGS = -Wall -Wmissing-prototypes $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) \
- $(DEFINES) $(ASM_FLAGS) $(X11_INCLUDES) -std=c99 -ffast-math
+CFLAGS = -Wall -Wmissing-prototypes -Wdeclaration-after-statement \
+ -Wpointer-arith $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) \
+ $(DEFINES) $(ASM_FLAGS) $(X11_INCLUDES) -std=c99 -ffast-math