--- Makefile.orig	Thu Feb  4 07:08:27 1993
+++ Makefile	Sat Jan 29 02:12:57 2000
@@ -23,15 +23,15 @@
 
 #
 # Modify these to fit the compiler setup on your system.
-CC = gcc
-CFLAGS = -O2
-LIBS = -lX11 $(IXLIBS)
+CC ?= gcc
+CFLAGS += -I${X11BASE}/include
+LIBS += -L${X11BASE}/lib -lX11 $(IXLIBS)
 
 #
 # These specify where to install the binary
 # and the manual.
-BINDIR = /usr/local/bin
-MANDIR = /usr/local/man/man1
+BINDIR = ${PREFIX}/bin
+MANDIR = ${PREFIX}/man/man1
 MANEXT = 1
 
 all: xdl
@@ -40,8 +40,8 @@
 	$(CC) $(CFLAGS) $(TIMER) $(BSDT) -o xdl xdl.c $(LIBS)
 
 install: xdl xdl.man
-	cp xdl $(BINDIR)
-	cp xdl.man $(MANDIR)/xdl.$(MANEXT)
+	${BSD_INSTALL_PROGRAM} xdl $(BINDIR)
+	${BSD_INSTALL_MAN} xdl.man $(MANDIR)/xdl.$(MANEXT)
 
 clean:
 	$(RM) xdl *.o *~ core