--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-OPTIMIZE=-g -Wall
+OPTIMIZE=-Wall
 #OPTIMIZE=-O2 
 
 GTKINC=$(shell pkg-config --cflags gtk+-2.0) -DG_DISABLE_DEPRECATED  -DGDK_DISABLE_DEPRECATED -DGTK_DISABLE_DEPRECATED
@@ -26,7 +26,7 @@ PACKAGE = kanjipad
 VERSION = 2.0.0
 
 OBJS = kpengine.o scoring.o util.o
-CFLAGS = $(OPTIMIZE) $(GTKINC) -DFOR_PILOT_COMPAT -DKP_LIBDIR=\"$(LIBDIR)\" -DBINDIR=\"$(BINDIR)\"
+CFLAGS += $(OPTIMIZE) $(GTKINC) -DFOR_PILOT_COMPAT -DKP_LIBDIR=\"$(LIBDIR)\" -DBINDIR=\"$(BINDIR)\"
 
 all: kpengine kanjipad jdata.dat