[llvm-dev] GN build roundtable summary; adding GN build files to the repo

[Dean Michael Berris via llvm-dev]

> On 1 Nov 2018, at 10:21, Stephen Kelly via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> On 31/10/2018 22:44, Dean Michael Berris via llvm-dev wrote:
>> FWIW, this is consistent with my experience as well.
>> I also wrote a presubmit script that I run locally to build/test the cross-product of:
>> COMPILER={gcc+gold, clang+lld}
>> MODE={debug, release-with-assertions}
>> TARGETS={llvm+clang+lld+compiler-rt, compiler-rt(standalone)}
>> While the build/test times are helped by using ninja, the CMake config times are less than optimal.
> 
> 
> It is possible that we have features/complexity in our CMakeLists.txt which is not needed. The CMake files are not using modern cmake features. Maybe it's time to change that. It might simplify the buildsystem a bit.
> 

I think this might be easier when we finish the move to the monorepo, and can better coordinate/simplify the build across projects. I certainly think it’s worth doing, even if we end up with GN and CMake files in the project.

I’m personally not aware of the “modern” CMake patterns. Do you have a reference online that interested individuals might be able to casually approach?

Cheers

-- Dean