diff -Naur fvwm.orig/doc/modules/Makefile.in fvwm/doc/modules/Makefile.in
--- fvwm.orig/doc/modules/Makefile.in	2007-06-17 21:00:51.000000000 +0200
+++ fvwm/doc/modules/Makefile.in	2007-06-17 21:03:41.000000000 +0200
@@ -370,7 +370,7 @@
 all-am: Makefile $(DATA)
 installdirs:
 	for dir in "$(DESTDIR)$(docdir)"; do \
-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	  test -z "$$dir" || $(MKDIR_P) "$(DESTDIR)$$dir"; \
 	done
 install-exec: install-exec-am
 install-data: install-data-am