--- Makefile.orig   2004-05-29 22:50:35.206186952 +0200
+++ Makefile    2004-05-29 22:51:34.209217128 +0200
@@ -1,7 +1,7 @@
-DESTDIR = /usr/local
-BINDIR = /usr/local/bin
-SHAREDIR = /usr/local/share/imapfilter
-MANDIR = /usr/local/man
+DESTDIR = /usr
+BINDIR = $(DESTDIR)/bin
+SHAREDIR = $(DESTDIR)/share/imapfilter
+MANDIR = $(DESTDIR)/man
 
 INCDIRS = -I/usr/local/include
 LIBDIRS = -L/usr/local/lib