On Tuesday March 03 2015 19:34:45 Thiago Macieira wrote: >> No. It really seems that ARC is only supported for 64 bit binaries, see e.g. >> here: > >"I haven't heard anything about 32-bit support"
Apple's own documentation seems to suggest that 32bit ARC was not available on 10.6, implying that it *is* on later versions. Looking at my 10.9.5 system, I see that the sample of system executables I checked are 64bit only, but all the frameworks and even the ObjC runtime (/usr/lib/libobjc.A.dylib) are 32/64 universal binaries, as is the iTunes executable. That probably means that they no longer install the full system in universal mode to save some space, but as to the use of ARC in 32bit applications one can only speculate that it would make more sense to implement ARC for 32bit than to maintain a different code base for that platform (or not use ARC at all). >I've never built 32-bit OS X binaries in Qt 5. Unlike Qt 4, Qt 5 does not do >universal binaries by default, so it's entirely possible no one has tested 32- >bit builds in quite a while. It's possible that this has been done through MacPorts, but I don't think there's any info on that (short of asking on the ML). If you give me the magic incantation to do a 32bit-only build I can try to do one for 5.4.1 qtbase, but I don't think I'm going to install all dependencies in universal mode for it... R _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
