Add contrib/jenkins.sh for jenkins build verification

Change-Id: I88a52f4adb08826f714bd32b1dfddd249f780c99
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
new file mode 100755
index 0000000..4e21fd7
--- /dev/null
+++ b/contrib/jenkins.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -ex
+
+osmo-clean-workspace.sh
+
+autoreconf --install --force
+./configure CFLAGS="-Werror" CPPFLAGS="-Werror"
+$MAKE $PARALLEL_MAKE
+$MAKE distcheck
+
+osmo-clean-workspace.sh