fix jenkins build: add contrib/jenkins.sh expected by jobs

Change-Id: I1ef4b9ce3080ce9cad9ed92ead01619b0d6f91f4
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
new file mode 100755
index 0000000..1b09c8b
--- /dev/null
+++ b/contrib/jenkins.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+# jenkins build helper script for asn1c.  This is how we build on jenkins.osmocom.org
+
+set -ex
+
+osmo-clean-workspace.sh
+
+set +x
+echo
+echo
+echo
+echo " =============================== asn1c ==============================="
+echo
+set -x
+
+./configure # CFLAGS="-Werror" CPPFLAGS="-Werror" #-Werror currently broken
+$MAKE $PARALLEL_MAKE
+$MAKE check
+#$MAKE distcheck # distcheck currently broken
+
+osmo-clean-workspace.sh