--- Makefile.orig	2015-08-09 16:36:50.000000000 -0500
+++ Makefile	2016-12-26 15:26:20.000000000 -0600
@@ -32,8 +32,8 @@
 # for linux and Apple OS X
 CC = gcc
 CLDFLAGS = -g
-CFLAGS = $(LIBINC) $(CLDFLAGS) -O2 -Wall -I$(MOTIFI) -I/opt/X11/include
-LDFLAGS = $(LIBLNK) $(CLDFLAGS) -L$(MOTIFL) -L/opt/X11/lib
+CFLAGS = $(LIBINC) $(CLDFLAGS) -O2 -Wall -I$(MOTIFI)
+LDFLAGS = $(LIBLNK) $(CLDFLAGS) -L$(MOTIFL)
 XLIBS = -lXm -lXp -lXt -lXext -lXmu -lX11
 LIBS = $(XLIBS) $(LIBLIB) -lm