-fforce-addr causes clang error with Xcode 5.1

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Apple's clang in Xcode 5.1 (as for building with the iOS 7.1 SDK) throws an
error about the (gcc-specific?) -fforce-addr option being unknown, which
clang now thinks is evil and should abort compilation.

It looks like this also hits OS X 10.9 builds, as I see there's a patch for
theora in MacPorts for this issue: https://trac.macports.org/ticket/42934


Attached is a quick-fix patch to the theora configure.ac to remove that
option conditionally when building for Darwin, which gets my builds working
again with the iOS 7.1 SDK (OS X builds untested).

Alternatively, if the option isn't needed it could simply be removed as in
the MacPorts patch.

-- brion vibber (brion @ pobox.com / bvibber @ wikimedia.org)

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<div dir=3D"ltr">Apple&#39;s clang in Xcode 5.1 (as for building with the i=
OS 7.1 SDK) throws an error about the (gcc-specific?) -fforce-addr option b=
eing unknown, which clang now thinks is evil and should abort compilation.<=
div>
<br></div><div><div>It looks like this also hits OS X 10.9 builds, as I see=
 there&#39;s a patch for theora in MacPorts for this issue:=C2=A0<a href=3D=
"https://trac.macports.org/ticket/42934">https://trac.macports.org/ticket/4=
2934</a></div>
</div><div><br></div><div><br></div><div>Attached is a quick-fix patch to t=
he theora <a href=3D"http://configure.ac">configure.ac</a> to remove that o=
ption conditionally when building for Darwin, which gets my builds working =
again with the iOS 7.1 SDK (OS X builds untested).<br>
</div><div><br></div><div>Alternatively, if the option isn&#39;t needed it =
could simply be removed as in the MacPorts patch.</div><div><br></div><div>=
-- brion vibber (brion @ <a href=3D"http://pobox.com">pobox.com</a> / bvibb=
er @ <a href=3D"http://wikimedia.org">wikimedia.org</a>)</div>
</div>

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