--- Makefile.orig	Sat May 22 14:31:12 1999
+++ Makefile	Sat May 22 14:33:04 1999
@@ -4,7 +4,12 @@
 OBJS=	platon.o xdrvr.o
 FOPT=	-Nx800 -NL400 -Nn802
 COPT=	-I/usr/X11R6/include
-LOPT=	-L/usr/X11R6/lib -lX11 -lf2c
+LOPT=	-L/usr/X11R6/lib -lX11
+.if defined(HAVE_G2C)
+LOPT+=	-lg2c
+.else
+LOPT+=	-lf2c
+.endif
 
 all:	${OBJS}
 	${FC} -o ${TARGET} ${OBJS} ${LOPT}
