>>>>> "Vadim" == Vadim V Zhytnikov <vvzhy at mail.ru> writes:
Vadim> My promise turned out to be a bit premature.
Vadim> Autoconf provides built-in method to check for
Vadim> some program but not for particular version
Vadim> of the program. An I don't see a simple way to do
Vadim> such check. Parse makeinfo --version or perl --version
Vadim> output? But it seems to be quite unreliable
Vadim> for this output may vary from version to version
Vadim> substantially.
Agreed.
But the build_index.pl script could probably tell you the version and
quit if perl is too old.
And since the script also produces the index, we could, perhaps, make
it print an error message if the index is not actually created.
Perhaps also mentioning that makeinfo might be too old.
Not quite as good as having configure tell us, but better than
silently failing.
I don't think we need to solve these for the imminent release, though.
Ray