--- Makefile.orig	2002-12-16 06:58:36
+++ Makefile	2023-11-17 18:25:10
@@ -1,13 +1,14 @@
 # $Id: Makefile,v 1.2 2002/12/15 19:58:36 marvin Exp $
 
-CC=gcc
-CFLAGS=-Wall -w -pedantic
+CC?=gcc
+CFLAGS+=-Wall -Wextra
+prefix?=/usr/local
 
 all: pipebench
 doc: pipebench.1
 install: pipebench
-	cp pipebench /usr/local/bin/
-	cp pipebench.1 /usr/local/man/man1/
+	cp pipebench $(DESTDIR)$(prefix)/bin/
+	cp pipebench.1 $(DESTDIR)$(prefix)/share/man/man1/
 
 pipebench: pipebench.c
 	$(CC) $(CFLAGS) -o pipebench pipebench.c