[llvm-dev] Naming clash: -DCLS=n and CLS in code

[U.Mutlu via llvm-dev]

Bruce Hoult via llvm-dev wrote on 06/19/2018 09:41 PM:
> If you're trying to add new functionality, why not do it like
>
> gcc -DLEVEL1_DCACHE_LINESIZE=$(getconf LEVEL1_DCACHE_LINESIZE)
>
> More obvious and much less chance of clashing with something else.
>
> The preprocessor is a very blunt hammer, doesn't know C++, doesn't respect any
> kind of scope rules. Avoid potential clashes.

Yeah, but the problem still would persist. Guess why?... :-)