Date: Tue, 25 Dec 2012 03:55:23 +0100 From: Matthew Rezny <mrezny@hexaneinc.com> To: freebsd-ports@freebsd.org Subject: multimedia/x264 workaround is broken Message-ID: <B00F7B07-CA3D-408E-A626-C39512DEACDD@hexaneinc.com>
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The Ports and Clang wiki page has x264 listed as a port with build = problems, but has Y for the USE_GCC=3Dany workaround. The last commit on = the port, over 3 months ago, has a contradictory message, noting the = workaround is insufficient and thus is only a temporary fix. I am running 9.1-RELEASE/amd64 built WITH_CLANG_IS_CC and WITHOUT_GCC. I = hit the deficiency in the workaround today while building ports. I took the default port options, except to disable PGO as I expected = that would be GCC specific. First attempt, configure fails with no = working C compiler, config.log shows it tries to call "gcc" which does = not exist because the port did not trigger any gcc from ports. Second attempt, turn on GCC4.4+ option, clean and make again. Same = failure, config.log is identical. Huh, why didn't it even try to build = some GCC from ports? Looking at the Makefile I notice the blanket = USE_GCC=3Dany and later the conditional USE_GCC?=3D4.4+. So the = workaround appears to smash the port's GCC4.4+ option and thus it could = never actually use any GCC from ports with this workaround in place. The = workaround is now the culprit in the brokenness when WITHOUT_GCC is = used. Third attempt, remove the offending USE_GCC=3Dany line from the = Makefile, turn off the GCC4.4+ option in the port, clean and make again. = Success! The port builds clean with Clang, no errors or warnings except = an ignored GCC specific option. I have not tested use of the port, that = has to wait for others to finish building so I have some way to do so. The immediate question is, what was the original error that mandated the = workaround and does that error still occur with current version of = Clang? If the latter is no, can we get rid of the temporary workaround? Happy Festivus (Air your grievances)
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