--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build	Tue Apr 07 14:28:51 2015 +0200
@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+test -d exim || {
+    echo "exim src directory missing" >&2
+    exit 1
+}
+for dockerfile in ${*:-systems/*/Dockerfile}
+do
+    context=${dockerfile%/*}
+    system=${context#*/}
+    echo docker build -f $dockerfile -t eximtest/$system 
+    docker build -f $dockerfile -t eximtest/$system .
+done