Meinersbur wrote:

> 2) the way to pass CMake arguments to runtime build is extremely user 
> unfriendly. 

Using a default runtimes build *the only caveat* is you have to add 
`-DLLVM_ENABLE_RUNTIMES=openmp` (and change `<llvm-project>/openmp` to 
`<llvm-project>/runtimes`). All openmp-specific CMake options are exactly the 
same as the standalone build. You proably think about the bootstrapping build. 
Please don't confuse the two.

> If these two can't be improved, I strongly object the removal of standalone 
> build.

I strongly object to maintaining redundant build configurations. We had 
autoconf+cmake before, no need to add extra maintainance overhead.

This discussion is off-topic. This PR is about LlVM_ENABLE_PROJECTS=openmp, not 
standalone build mode.

https://github.com/llvm/llvm-project/pull/152189
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