Re: pgsql: Require version 0.98 of Test::More for TAP tests

I wrote:
> Seems reasonable to me, although it's not entirely clear how to hook
> the output into configure's practices --- in particular, people using
> "./configure -q" might not be pleased by unwanted diagnostic output.
> But that could probably be dealt with.

Here's a draft patch based on Andrew's script. I'm not entirely
satisfied with it, because I couldn't get the output to go where
I wanted. I think that the reports of actual module versions should
go to config.log, and not appear in configure's user-visible output,
because (a) 99% of people won't care, and (b) otherwise we don't have
a good way to silence them under -q, where 100% of people won't care.

However, the only way I could get that to happen was to redirect
prove's stderr to config.log (&AS_MESSAGE_LOG_FD), which is not great
because it means that in the failure case the only place where any useful
info appears is config.log. I tried printing the version reports to
STDOUT instead of using diag(), but that seems to get redirected to
/dev/null somewhere. Anybody know how to get prove to not do that?

regards, tom lane