--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contrib/packagelib.sh	Thu May 07 10:28:58 2015 -0400
@@ -0,0 +1,19 @@
+gethgversion() {
+    make clean
+    make local || make local PURE=--pure
+    HG="$PWD/hg"
+
+    $HG version > /dev/null || { echo 'abort: hg version failed!'; exit 1 ; }
+
+    hgversion=`$HG version | sed -ne 's/.*(version \(.*\))$/\1/p'`
+
+    if echo $hgversion | grep -- '-' > /dev/null 2>&1; then
+        # nightly build case, version is like 1.3.1+250-20b91f91f9ca
+        version=`echo $hgversion | cut -d- -f1`
+        release=`echo $hgversion | cut -d- -f2 | sed -e 's/+.*//'`
+    else
+        # official tag, version is like 1.3.1
+        version=`echo $hgversion | sed -e 's/+.*//'`
+        release='0'
+    fi
+}