diff -r 33e5eecb3311 Makefile
--- a/Makefile	Tue Jul 31 18:22:13 2007 +0200
+++ b/Makefile	Wed Aug 01 12:43:39 2007 +0200
@@ -31,6 +31,7 @@ clean:
 clean:
 	@echo cleaning
 	@rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz
+	@if cmp -s config.h config.default.h; then rm -f config.h; fi
 
 dist: clean
 	@echo creating dist tarball