diff --git a/scripts/mkspec-wrapper.sh b/scripts/mkspec-wrapper.sh
index a809f486..b7ed7ab3 100644
--- a/scripts/mkspec-wrapper.sh
+++ b/scripts/mkspec-wrapper.sh
@@ -8,6 +8,8 @@ MYNAME=`basename $0`
 MKSPEC_SH="$1"
 shift
 
+FILTER_DEVEL='/include/.*.h$\|devel\|make\|lib.*\.a$\|lib.*\.so$\|*\.exp\|*\.def\|*\.lib'
+
 usage()
 {
 	echo usage: $MYNAME /path/to/mkspec.sh -h [-N name] [-T topdir] [-V version] [-S source] [-R requires] [-P project]
@@ -93,7 +95,8 @@ export \
 	PROJECT NAME \
 	SOURCE \
 	VERSION RELEASE V \
-	INSTALL_LOG
+	INSTALL_LOG \
+	FILTER_DEVEL
 
 sh $MKSPEC_SH