> On Oct 7, 2016, at 08:59, René J.V. Bertin <rjvber...@gmail.com> wrote: > > On Friday October 07 2016 11:43:48 Lawrence Velázquez wrote: > > [was Re: dbusmenu-qt5 build failure on 10.7 and 10.8 buildbots because of > using libstdc++] > >> it might be useful to refine this mechanism to allow something like >> "configure.compiler.cxx macports-gcc-XYZ", which would add a direct >> library dependency on libgcc (among other things). > > Yep, that sounds like a good idea, but can that not be handled by the > existing configure.cxx syntax? > > BTW: how risky is it to replace libc++ on newer OS X versions which do in > fact provide them?
My advice is to not mess with the base OS. There is a very good reason why I force the user to use a variant and don't even give instructions on how to use darwinup to install the libcxxabi and libcxx tarballs. That being said, it's technically possible and they should be binary compatible. I was actually using the newer libcxxabi and libcxx ports on Lion and Mountain Lion for a while. The only issue I saw was that a system process (helpd or something like that) was crashing (I think on ML). I didn't dig into the issue, but it's possible it was just a bug in the daemon that was revealed by the newer C++ runtime. It's also quite possible there was a serious regression in the C++ runtime. I never got around to looking into it more closely. > And since we're talking about runtimes: is it even possible to upgrade the > ObjectiveC runtime, as far as that is of any interest when you don't upgrade > the rest of the SDK using it? It's all code and objc4 is OSS. Go nuts (http://opensource.apple.com/source/objc4/objc4-680/). Make backups. YMMV. > > R. > _______________________________________________ > macports-dev mailing list > macports-dev@lists.macosforge.org > https://lists.macosforge.org/mailman/listinfo/macports-dev
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