# If there is more than one v[0-9].* tag, sort them and use the
# first. This favours, eg v2.63 over 2.63rc6.
-if which git >/dev/null 2>&1 && [ -d $1/.git ]; then
- cd $1; git describe | sed 's/^v//'
+if which git >/dev/null 2>&1 && \
+ ([ -d $1/.git ] || grep '^gitdir:' $1/.git >/dev/null 2>&1); then
+ cd $1; git describe | sed 's/^v//'
elif grep '\$Format:%d\$' $1/VERSION >/dev/null 2>&1; then
# unsubstituted VERSION, but no git available.
echo UNKNOWN