[reSIProcate] Followup on c-ares support

[Adam Roach]

Brad Spencer wrote:
> The attached patch will allow resiprocate to be configured against the
> trunk version of c-ares (1.5.3 + patches).  Of course, it still allows
> resiprocate to be configured to use contrib/ares as well.

I've checked the resip patch in (with some changes to the config/build 
integration) under 
https://svn.resiprocate.org/rep/resiprocate/branches/b-abr-cares/

(For configure script changes, make sure to run the configure script 
interactively [without -y] and in full-screen mode [with -m] to make 
sure your changes behave correctly)

By the way, the buildconf script in c-ares doesn't work under OS X -- 
for some reason, the 'libtoolize' binary is available only under its 
alternate name 'glibtoolize'. It would be quite a help if you could 
commit a change back to fix this problem.

/a