--- Makefile.gtk.orig	Sat Aug 28 03:46:47 1999
+++ Makefile.gtk	Sun Sep 24 00:20:45 2000
@@ -1,7 +1,9 @@
-CC = gcc
-CFLAGS = -DGTK
-GTKCONFIG = gtk12-config
+CC ?= gcc
+CFLAGS += -DGTK
+GTKCONFIG = $(GTK_CONFIG)
 OBJS = molwt.o usage.o element.o reduce.o count.o calculate.o initwidget.o allowcase.o inputformula.o addtolist.o
+
+all: gmolwt
 
 molwt: gmolwt
 	ln -s gmolwt molwt
