Re: [Boost-build] [v2] precompiled header support and parallel builds

From: Reece Dunn (msclrhd_at_[hidden])
Date: 2006-01-19 14:35:41

Janssen, Olaf  ST/HZA-TBE wrote:
>pch support doesn't work together with parallel builds, because access
>to the precompiled header file isn't synchronized, e.g.

Do you know how to synchronize the PCH header? Is it just generation+access 
at the same time where build(0) is generating the PCH and build(1) is using 
it?

Hmm. We need to make the CPP files dependant on the PCH file, so they won't 
be built until the PCH is generated.

The mechanism to associate the PCH with the CPP files isn't adding a 
dependency on that PCH. I'll have a look at this, but getting PCH support 
thus far was complex enough and it doesn't currently work in all cases!

- Reece