--- Makefile	2005-10-22 13:50:03.000000000 +0200
+++ Makefile.oden	2007-08-14 12:29:32.000000000 +0200
@@ -21,6 +21,7 @@
 
 # you do use gcc, don't you?
 CC = gcc
+CFLAGS = -O2 -g -Wall
 
 # NOTE: optimization is recommended, as this driver does a lot
 # of work. Switching on optimization *does* change the output
@@ -38,7 +39,7 @@
 
 OBJS = ppmtomd.o mddata.o photocolcor.o vphotocolcor.o dyesubcolcor.o
 ppmtomd: $(OBJS)
-	$(CC) -o ppmtomd $(OBJS) $(LDLIBS) -lpnm -lppm -lpgm -lpbm -lm
+	$(CC) $(CFLAGS) -o ppmtomd $(OBJS) $(LDLIBS) -lnetpbm -lm
 
 ppmtomd.o: ppmtomd.c mddata.h
 	$(CC) $(CDEBUGFLAGS) $(DEFAULTMODEL) -W -Wall -Wstrict-prototypes -c ppmtomd.c