llvm dev - Oct 2020 - Contributing Bazel BUILD files similar to gn

On Thu, Oct 29, 2020 at 11:23 AM Tom Stellard via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> > tl;dr: We'd like to contribute Bazel BUILD files for LLVM and MLIR
in a
> > side-directory in the monorepo, similar to the gn build.
> Can you explain some of the benefits to using Bazel instead of CMake?
I can, and I will be very brief: None.

-- 
Stefan Teleman
stefan.teleman at gmail.com

On Thu, Oct 29, 2020 at 9:55 AM Stefan Teleman via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> On Thu, Oct 29, 2020 at 11:23 AM Tom Stellard via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>
> > > tl;dr: We'd like to contribute Bazel BUILD files for LLVM and
MLIR in a
> > > side-directory in the monorepo, similar to the gn build.
>
> > Can you explain some of the benefits to using Bazel instead of CMake?
>
> I can, and I will be very brief: None.
>
This is a fairly unhelpful email - clearly folks using Bazel derive some
benefit/have chosen some tradeoff compared to CMake. Doesn't have to be the
thing you want, but it's pretty unhelpful to dismiss/diminish the needs of
others like this.

- Dave
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> This is a fairly unhelpful email - clearly folks using Bazel derive some
benefit/have chosen some tradeoff compared to CMake. Doesn't have to be the
thing you want, but it's pretty unhelpful to dismiss/diminish the needs of
others like this.
I did not see a rationale for the Bazel proposal, outlining its
benefits over CMake.

Speaking with direct experience with Bazel - Tensorflow - I cannot
think of a single reason why it would/should be considered "better"
over the current CMake.

Everyone has their own favorite build system. That is nice, but it is
not enough of a reason to propose adding it.

I would also like to become informed as to what particular
needs/shortcomings/defects are addressed by Bazel, that are lacking in
/ cannot be addressed by CMake.

Thanks.

-- 
Stefan Teleman
stefan.teleman at gmail.com