--- makefile.orig	2013-09-26 15:22:07.000000000 +0200
+++ makefile	2013-09-26 15:22:46.000000000 +0200
@@ -104,4 +104,5 @@
            M1SUFFIX=$(M1SUFFIX) \
 	   MANnDIR=$(build_root)$(MANnDIR) MnFILES="$(MnFILES.f)" \
 	   MnSUFFIX=$(MnSUFFIX) \
-	   DOCDIR=$(build_root)$(DOCDIR) VERSION=$(VERSION)
+	   DOCDIR=$(build_root)$(DOCDIR) VERSION=$(VERSION) \
+	   NOPORTDOCS=${NOPORTDOCS}