--- Makefile.orig	1999-05-27 18:58:06.000000000 +0800
+++ Makefile	2014-01-10 14:20:30.000000000 +0800
@@ -1,6 +1,6 @@
-CC = gcc
-CFLAGS = `gtk-config --cflags`
-LDLIBS = `gtk-config --libs`
+CC ?= gcc
+CFLAGS += `$(GTK_CONFIG) --cflags`
+LDLIBS = `$(GTK_CONFIG) --libs`
 
 all:	gmessage
 
@@ -8,7 +8,7 @@ gmessage:	gmessage.c
 	$(CC) $(CFLAGS) gmessage.c -o gmessage $(OBJS) $(LDLIBS)
 
 install: gmessage
-	cp ./gmessage /usr/local/bin
+	${BSD_INSTALL_PROGRAM} gmessage $(DESTDIR)${PREFIX}/bin
 
 clean:
 	$(RM) *.o core gmessage