[LLVMdev] include/Config/config.h discrepancies between CMake and autofoo builds

Óscar Fuentes ofv at wanadoo.es
Wed Jan 5 10:50:39 PST 2011


Anton Korobeynikov <anton at korobeynikov.info> writes:

>> contains most of them. If they're non-trivial (like the ones I needed to
>> add for OSX functionality) that's a different story.
> FWIW the difference is even more significant on, e.g. mingw32 because
> process spawning is pretty much expensive and sometimes configure time
> dominates the compile time :)

Yes, the time taken by configure tests (both by the `configure' script
and cmake) is annoyingly long.

Although I don't think it is the most pressing issue, if there is an
interest on it I'm not opposed to patches that remove unused platform
tests from the cmake build *and* from the autoconf build (as I don't
know about the autoconf build, someone familiar with it would need to
approve that part of the patches.)



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