On 2014-11-01 at 17:26:26 +0100, Austin Seipp wrote: [...]
>> How long does building those two llvm binaries take? If it is >> sufficiently quick, maybe that would be a suitable distribution for >> developers as well, and avoids having to separately build, distribute, >> download, and install the binaries. > > In practice it takes a while... I haven't timed it, but I'd guess on > average it adds about 30-40 minutes for most people just to build > llvm. I'm not sure how many things we can disable to make the build > faster, but I'd ballpark it at half an hour at best (it's a few > thousand source files, after all). > > This would mostly hurt if you cleaned up the tree later (e.g. 'make > distclean'), which I do rather frequently in order to get a pristine > build tree. This also hurts buildbots as 30+ minutes is even more than a validate run takes... :-/ Otoh, we don't have to force everyone to build GHC's bundled LLVM, and could allow to use the system-wide installed LLVM binaries if a matching version is provided by the system. As an example, I currently have llvm-3.4 and llvm-3.5 installed, and could easily have a llvm-3.6 snapshot installed via the package manager (e.g. via http://llvm.org/apt/). Cheers, hvr _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
