[notmuch] preliminary FreeBSD support

[Carl Worth]

On Tue, 17 Nov 2009 11:36:14 -0800, Alex Botero-Lowry <alex.boterolowry at gmail.com> wrote:
> I saw the announcement this morning, and was very excited, as I had been
> hoping sup would be turned into a library,
> since I like the concept more than the UI (I'd rather an emacs interface).

Hi Alex,

That's great! It's good to hear that there are like-minded people out
there. I hope that Notmuch will be useful for you.

> I did a preliminary compile which worked out fine, but
> sysconf(_SC_SC_GETPW_R_SIZE_MAX) returns -1 on
> FreeBSD, so notmuch_config_open segfaulted.
> 
> Attached is a patch that supplies a default buffer size of 64 in cases where
> -1 is returned.

Thanks for the patch. As we discussed in IRC[*], we should probably
do the correct thing and check for ERANGE and loop as necessary (even if
sysconf returns a positive value). Example code here:

http://www.opengroup.org/austin/docs/austin_328.txt

-Carl

[*] #notmuch on irc.freenode.net for those who didn't just guess that
already, (and I'll add that to the website soon).