On Fri, Jun 5, 2020 at 6:47 AM Vitaly Zaitsev via devel <devel@xxxxxxxxxxxxxxxxxxxxxxx> wrote: > > On 05.06.2020 09:52, Kevin Kofler wrote: > > I am opposed to this change. Chromium and Firefox build fine with GCC. I > > think that a distribution should be built with a consistent toolchain > > wherever possible. > > Clang is much better than GCC nowadays. It has better architecture, > support lots of optimizations and analyzers. > > GCC is a legacy compiler. It should be completely replaced by Clang in > the nearest future. > Having worked in a distribution that uses Clang by default (OpenMandriva), I can say that this is *not true*. Switching from GCC to Clang cost OpenMandriva a lot of performance. It also cost them a lot of security hardening at the compiler level. GCC-built binaries are still better, and remain better as long as people are continually using and developing for it. This change appears to largely be driven by the maintainers of web browser packages that upstream have no GCC validation and it has to be done in Fedora downstream. I know Chromium is a lost cause (Google couldn't possibly care any less than they do now, especially since they don't even care about Python 2 being EOL), but has anyone talked to Mozilla about introducing GCC-based CI for Firefox code? I assume they have a CI infrastructure that's relatively pluggable. Note that having stuff mix compilers is also a bad idea because LTO is compatible across the two compilers. If you want to use LTO, you need to use the same compiler across the chain, or stuff will break. I would rather see us still *strongly prefer* GCC rather than allowing this to be freely changeable at a whim. -- 真実はいつも一つ！/ Always, there's only one truth! _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
