On 3/5/14 7:59 AM, "René J.V. Bertin" wrote: > On Mar 05, 2014, at 09:55, Ryan Schmidt wrote: >> environment variables to build each architecture, if desired. It is not >> possible to specify different variants for each architecture; variants apply >> to the port as a whole. > But I presume it would be possible to have architecture-specific options for > a variant? If so, what I was suggesting as (temporary) fix, was to tweak the > i386-specific asm options to render it harmless. > >> Is it the case that the asm variant only works for the x86_64 architecture? > Apparently, yes. > >> If so, my proposed fix would be that the asm variant only be selectable if >> x86_64 is within the architectures that will be built, and if so, to only >> apply to that architecture and not any others. > Are we saying the same thing? > > The other way of looking at it is this: is there a reason NOT to use the asm > variant (at least for x86_64)? I suppose it exists for performance reasons, > and if justifiable it could in that case be the default. In this case (and > until the i386 issue is fixed), it would be activated for the x86_64 part, > but not for i386. That would at least get rid of the suggestion that asm is > used for all architectures. > One could keep the +asm variant (which would lead to a pure i386 build), and > one might add a +noasm variant (that would disable the asm parts in the > x86_64 binaries) if there are usage cases that are incompatible with the asm > code. > > Again, this would only make sense if the asm option is purelyinternal, > without introducing changes to the library's ABI... > _______________________________________________ > https://trac.macports.org/changeset/117612
+asm variant dropped and --disable-asm asserted whenever configuring for i386. This allows +universal to build with asm optimizations for x86_64 and without for i386. Also fixes -universal build for i386. Other possible archs are handled by the port itself. No ABI impact. Thanks for the suggestion. <https://trac.macports.org/changeset/117612>
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