Re: play nice with AC_CACHE_CHECK

[Ralf Wildenhues]

Hi Eric,

* Eric Blake wrote on Thu, Feb 23, 2006 at 08:42:18PM CET:
> > 
> > 2) Similar with getaddrinfo.m4, except there is no need to store
> > additional information here.  Beware, the getaddrinfo part of the
> > patch is completely untested.
> 
> The following patch to getaddrinfo HAS been tested:

> And it is essential for CVS coreutils to compile on cygwin with
> caching on (sorry you had to duplicate my efforts)

Oh, I did not research much about pending patches; mine is essentially
the same as yours, which is a good sign.  So yours should be applied.
Sorry about that.

I audited all use of AC_CACHE_CHECK in gnulib.  There is one more open
candidate, AM_GNU_GETTEXT, which I assume to be problematic, but its
logic is more involved.  All other uses look fine.

Cheers,
Ralf