$OpenBSD$
--- makefile.orig	Wed Jun  7 03:55:06 2000
+++ makefile	Thu Oct 25 18:47:21 2001
@@ -1,7 +1,7 @@
 install: clustalw
 
 clean:
-	rm *.o
+	rm -f *.o clustalw
 
 OBJECTS = interface.o sequence.o showpair.o malign.o \
   	util.o trees.o gcgcheck.o prfalign.o pairalign.o \
@@ -10,9 +10,9 @@
 
 HEADERS = general.h clustalw.h
 
-CC	= cc
-CFLAGS  = -c -O
-LFLAGS	= -O -lm 
+CC	?= cc
+CFLAGS  += -c -DDATADIR=\"${PREFIX}/share/clustalw\"
+LFLAGS	=  -lm 
 
 clustalw : $(OBJECTS) amenu.o clustalw.o
 	$(CC) -o $@ $(OBJECTS) amenu.o clustalw.o $(LFLAGS)