--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ SRCS=simulpic.cc tfile.cc tiofile.cc tpa
 
 ALLSRC=$(IECSRC) $(SRCS) $(INCLUDES) Makefile Copyright README simulpic.doc simulpic.1
 
-CFLAGS= -g -fPIC -O -Wall -fwritable-strings -fno-exceptions \
+CFLAGS= -g -fPIC -O2 -Wall -fno-exceptions \
 	-I. -I/usr/include/g++-3