--- a/enable.sh Tue Mar 20 16:58:00 2012 +0100
+++ b/enable.sh Tue Mar 20 17:04:05 2012 +0100
@@ -3,6 +3,11 @@
here=`readlink -f "$0"`
repo_root=`dirname "$here"`
+if !( hg --version -q | grep -e 'version 2\.[1-9]' ); then
+ echo 'You need mercurial 2.1 or later' >&2
+ exit 2
+fi
+
cat << EOF >&2