Unbreak build on Solaris.
authorPhil Pennock <pdp@exim.org>
Sun, 6 May 2012 13:32:53 +0000 (06:32 -0700)
committerPhil Pennock <pdp@exim.org>
Sun, 6 May 2012 13:32:53 +0000 (06:32 -0700)
Solaris needs -lresolv, ie $(LIBRESOLV), for anything referencing DNS.
I added _res stuff to os.c.
os.c is used by multiple tools, but of those only Exim needs the DNS functionality.
So used a !defined(COMPILE_UTILITY) guard.


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