Changes between Version 1 and Version 2 of Ticket #54773, comment 14
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- Sep 11, 2017, 6:36:13 PM (7 years ago)
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Ticket #54773, comment 14
v1 v2 10 10 However, the resulting compiler failed to build some Qt 5.8 code (a bit surprising because that same code builds fine with the system clang). 11 11 12 '''EDIT''': belay that. The failure I saw was due to using the `c++/v1` headers from Xcode 6.2 . `port:gcc7+libcxx40` (= using those headers from llvm-4.0) builds the problem code just fine, whether I use clang 4.0.1 as the assember or the system clang (600.0.57). With the latter the build is also about 10seconds faster (7-8%). 13 14 12 15 As a side-note: a full GCC build configured with `--disable-bootstrap` using clang-mp-4.0 is over 4x faster than the `bootstrap-lean` procedure used normally, the build directory is more than 2x smaller (*after* HFS compression!) and the resulting binary image (xz-compressed tarball) is 10% smaller. I still need to do a few comparisons of compiler performance (the bootstrapped version might be faster according to the docs) but these figures justify a `+quick` variant IMHO.