--- a/build	Mon Aug 24 21:39:14 2015 +0200
+++ b/build	Mon Aug 24 21:39:41 2015 +0200
@@ -1,6 +1,8 @@
 #!/bin/bash
 
 set -e
+export LC_ALL=C
+
 trap '[[ $SORRY ]] && echo "FAILED: $SORRY" >&2' EXIT
 
 # update the Dockerfiles for the platforms