Date: Wed, 19 Jul 2006 14:57:10 -0600 From: Scott Long <scottl@samsco.org> To: Guy Helmer <ghelmer@palisadesys.com> Cc: freebsd-stable@freebsd.org Subject: Re: Can't run newly-compiled RELENG_6 programs under RELENG_6_1: missing __res_state Message-ID: <44BE9CA6.9050007@samsco.org> In-Reply-To: <44BE9B57.6090000@palisadesys.com> References: <44BE8912.9010807@palisadesys.com> <44BE9902.3050900@samsco.org> <44BE9B57.6090000@palisadesys.com>
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Guy Helmer wrote: > Scott Long wrote: > >> Guy Helmer wrote: >> >>> We just tried running programs under RELENG_6_1 that were compiled >>> under RELENG_6 checked out 2006-07-19, and couldn't because of the >>> undefined symbol "__res_state"l, which I would assume is a result of >>> the recent MFC of the BIND 9 resolver library. Is this to be >>> expected? It will cause a bit of a hassle... >>> >>> Guy >>> >> >> No, it shouldn't be that way. I heavily advocated that the STABLE >> branches should be free from exactly these kinds of problems. Hopefully >> this gets resolved. >> >> Scott > > After looking more deeply, I've found it is because our own software > plays with the semi-public _res structure to reduce the timeout and > retries in the DNS resolver routines. I found the changes in > /usr/include/resolv.h - references to _res.xxx are being changed via > macros into function calls to make the operations thread-aware. Now > that I know, I can work around it.. > > Guy > That's good to know. Still it sounds like an unintended consequence that could cause problems for others. Scott
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