changequote(<<, >>)#dnl
+ ## Assume and hunt for dotted version multiplet.
+ ## use eval trickery, because we cannot use multi-level $() instead of ``
+ ## for compatibility reasons.
+
## grab the first version number in --version output.
eval _ver=\"\`("$1" --version || "$1" -V) 2>&1 | grep '[0-9]\.[0-9]' \
| head -n 1 \