[Mesa-dev] Lets talk about autotools

Kai Wasserb├Ąch kai at dev.carbon-project.org
Tue Sep 18 14:43:08 UTC 2018

Dylan Baker wrote on 9/17/18 6:44 PM:
> I feel like for !windows meson is in good enough shape at this point that we
> can start having the discussion about deleting the autotools build. So, is there
> anything left that autotools can do that meson cannot (that we actually want to
> implement)? And, what is a reasonable time-table to remove the autotools build?
> I think we could reasonably remove it as soon as 18.3 if others felt confident
> that it would work for them.

How do I set a specific llvm-config name to look for? I have build environments
with multiple LLVM versions (eg. 6, 7 and 8) installed in parallel. So far I
could convince each build system with LLVM_CONFIG or similar means to choose a
particular llvm-config-${LLVM_VERSION], meson can't do that AFAICT.

Eric pointed me to an ugly hack on IRC, which involves symlinking the particular
llvm-config-${VERSION} to llvm-config in $PATH
But I think this should be fixed properly before making meson mandatory. Other
modern build systems like CMake react to something like -DLLVM_DIR during
configure (see
<https://llvm.org/docs/CMake.html#embedding-llvm-in-your-project>) and Mesa's
stable build systems use LLVM_CONFIG, if set.


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