need -lresolv on MacOSX 10.6

[Darren Tucker]

Jim Basney wrote:
[...]
> OpenSSH's configure script tests for res_query with
> AC_TRY_LINK_FUNC(res_query, ...) which doesn't #include <resolv.h>, so
> it doesn't detect that -lresolv is needed for res_9_query. The attached
> patch is my attempt to fix it.

Seems reasonable to me.  Committed, thanks!

-- 
Darren Tucker (dtucker at zip.com.au)
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     Good judgement comes with experience. Unfortunately, the experience
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