Index: build/makearch.info
==================================================================
--- build/makearch.info
+++ build/makearch.info
@@ -38,9 +38,9 @@
 # This script is executed after updating variables
 UPDATED=""
 
 # This script is executed immediately prior to creation of the
 # tarball
-AFTER=""
+AFTER="build/post.sh"
 
 # Files matching these (space-seperated) patterns are deleted
-TMPS="*.out HEADER build autogen.sh"
+TMPS="*.out HEADER"

ADDED   build/post.sh
Index: build/post.sh
==================================================================
--- /dev/null
+++ build/post.sh
@@ -0,0 +1,6 @@
+#! /usr/bin/env bash
+
+rm -rf build
+rm -f autogen.sh
+
+exit 0