--- a/contrib/builddeb	Wed May 06 13:13:54 2015 -0400
+++ b/contrib/builddeb	Thu May 07 10:28:58 2015 -0400
@@ -4,6 +4,8 @@
 #
 # Tested on Jessie (stable as of original script authoring.)
 
+. $(dirname $0)/packagelib.sh
+
 BUILD=1
 DEBBUILDDIR="$PWD/debbuild"
 while [ "$1" ]; do
@@ -34,23 +36,7 @@
     exit 1
 fi
 
-# build local hg and use it
-python setup.py build_py -c -d .
-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
+gethgversion
 
 cp -r $PWD/contrib/debian $DEBBUILDDIR/DEBIAN
 chmod -R 0755 $DEBBUILDDIR/DEBIAN