diff --git a/autogen.sh b/autogen.sh
index 990096c..169d689 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,2 +1,5 @@
+#!/bin/sh
 autoreconf -v --install || exit 1
-exec ./configure  "$@"
+if test -z "$NOCONFIGURE"; then
+    exec ./configure  "$@"
+fi