$OpenBSD: patch-Makefile,v 1.6 2017/11/03 13:52:15 espie Exp $

- Honor cflags
- Port to gtk+2
- don't remove -lm

Index: Makefile
--- Makefile.orig
+++ Makefile
@@ -19,11 +19,9 @@ GTK_DIR =
 #
 # add -DUSE_GNOME if you want to make grpn GNOME compliant.
 
+# We cheat by defining GTK_VER_1_1...
+CFLAGS +=`pkg-config --cflags gtk+-2.0` -DGTK_VER_1_1
 
-CFLAGS = -g -O2 -I/usr/X11/include  `$(GTK_DIR)gtk-config --cflags` -DGTK_VER_1_1
-
-DFLAGS =  -L/usr/X11/lib 
-
 # end of user configurable section
 
 
@@ -37,11 +35,11 @@ OBJS = test_gtk_ver.o real.o complex.o matrix.o number
 
 
 
-LIBS   = `$(GTK_DIR)gtk-config --libs` -lX11 -lm 
+LIBS   = `pkg-config --libs gtk+-2.0` -lm
 
 
 grpn:	$(OBJS)
-	$(CC) $(DFLAGS) -o $@ $(OBJS) $(LIBS) 
+	$(CC) -o $@ $(OBJS) $(LIBS) 
 
 pure:	$(OBJS)
 	$(PURIFY) $(CC) $(DFLAGS) -o $@ $(OBJS) $(LIBS)