On Sunday, 13 August 2017 06:20:31 UTC+1, Mike Hommey wrote: > On Sat, Aug 12, 2017 at 11:22:30PM -0400, Jeff Muizelaar wrote: > > On Sat, Aug 12, 2017 at 9:40 PM, Ehsan Akhgari <ehsan.akhg...@gmail.com> > > wrote: > > > Last but not least, you may ask yourself why would we want to spend this > > > much effort to switch to clang-cl on Windows? I believe this is an > > > important long term shift that is beneficial for us. First and foremost, > > > clang is a vibrant open source compiler, and being able to use open source > > > toolchains on our most important platforms is really important for us in > > > terms of being able to contribute to the compiler where needed > > > > It's worth emphasizing the value of using an open source compiler. > > Being able to find and fix bugs in the compiler instead of having to > > work around them without knowing the true cause is enormously > > valuable. A recent example of this happened to me yesterday with > > https://bugzilla.mozilla.org/show_bug.cgi?id=1382857. Once I had > > reported the issue (https://bugs.llvm.org/show_bug.cgi?id=34163) a fix > > was committed to clang trunk in less than 6 hours. That's something > > not ever possible with MSVC. > > That bugs can be fixed in a few hours is nice, but that's not the main > advantage. (also, not all bugs are fixed in a few hours. The one that > makes Firefox fail to build with current clang trunk has been open for 2 > weeks and hasn't been fixed yet). > > The main advantage is that you can take that fix, and apply it to your > compiler *right now*. As opposed to "whenever the vendor makes a new > release". We're regularly applying patches to clang and GCC. We can't > do the same to MSVC, even when we file bugs to Microsoft and they fix > them. > > Another advantage is that if you're so inclined, you can fix the > it yourself. > > Mike > > PS: And once clang-cl+lld actually works, it will also be possible to > build for Windows on Linux.
Haven't you been able to do that with MinGW on Linux since about 1998? Thanks Liam Wilson _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
