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From: Phillip Seaver (phil_at_[hidden])
Date: 2006-04-26 08:19:51

Vladimir Prus wrote:
> On Wednesday 26 April 2006 16:07, Janssen, Olaf ST/HZA-TBE wrote:
>>> PCH is nowhere close to "release" state. There are numerous
>>> issues with
>>> PCH on MSVC:
>>> 6. Some other subtle issues I can't remember.
>> parallel build does not work (that might also be difficult to implement)
> What are specific issues with parallel build? There should be a dependency
> from exe to the used pch, to PCH should be created before exe is compiled?
> Or the problem is that two copies of compiler try to use the same PCH? It's
> possible to serialize execution of compile actions for that case.
> - Volodya

The latter. You run into the same problem with .pdb files, which is one
reason I haven't finished it. I just run without -j2 for those builds.
Would the serialization force it to do a single thread (even if I had
-j2) or would it build a separate target that didn't use the same file?


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