diff -up mozilla-release/xulrunner/installer/Makefile.in.xl-nspr-ver mozilla-release/xulrunner/installer/Makefile.in
--- mozilla-release/xulrunner/installer/Makefile.in.xl-nspr-ver	2013-10-14 10:08:53.000000000 +0200
+++ mozilla-release/xulrunner/installer/Makefile.in	2013-10-14 10:11:21.342000000 +0200
@@ -91,7 +91,7 @@ endif
 	-e "s|%FULL_NSPR_LIBS%|$(FULL_NSPR_LIBS)|" \
 	-e "s|%FULL_NSPR_CFLAGS%|$(FULL_NSPR_CFLAGS)|" \
 	-e "s|%NSPR_NAME%|$(NSPR_NAME)|" \
-	-e "s|%NSPR_VERSION%|$(NSPR_VERSION)|" \
+	-e "s|%NSPR_VERSION%|__RH_NSPR_VERSION__|" \
 	-e "s|%MOZ_XUL_LINK%|$(MOZ_XUL_LINK)|" \
 	-e "s|%MOZ_JS_LINK%|$(MOZ_JS_LINK)|" > $@
 	chmod 644 $@