--- include/Makefile.in.orig	2007-08-28 15:39:22.000000000 +0200
+++ include/Makefile.in	2007-08-28 15:36:52.000000000 +0200
@@ -229,7 +229,7 @@
 BUILT_SOURCES = nut_version.h
 CLEANFILES = nut_version.h
 SVNREV = $(shell svnversion -n $(top_srcdir) 2>/dev/null)
-NUT_VERSION = $(shell if test "$(SVNREV)" = "exported"; then echo "$(PACKAGE_VERSION)"; else echo "$(PACKAGE_VERSION)-$(SVNREV)"; fi)
+NUT_VERSION = $(shell if test "$(SVNREV)" = "exported" -o -z "${SVNREV}"; then echo "$(PACKAGE_VERSION)"; else echo "$(PACKAGE_VERSION)-$(SVNREV)"; fi)
 all: $(BUILT_SOURCES) config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am