Re: [Boost-build] Problem with Intel compiler and pch support

Subject: Re: [Boost-build] Problem with Intel compiler and pch support
From: Vladimir Prus (ghost_at_[hidden])
Date: 2008-10-25 12:27:55

On Wednesday 22 October 2008 20:42:37 John Maddock wrote:
> Trying to compile a project that has pch support with the intel toolset on 
> win32 results in a bbv2 failure:
> 
> Error: ambiguity found when searching for best transformation
> Trying to produce type 'CPP_PCH' from:
>  -  { ../src/tr1/pch.hpp.HPP }
> Generators that succeeded:
>  -  pch.default-cpp-pch-generator
>  -  intel-win.compile.c++.pch
> First generator produced:
> Second generator produced:
>  -  { intel-win%intel-win.compile.c++.pch-pch.pch.CPP_PCH { 
> ../src/tr1/pch.hpp.H
> PP } }
>  -  { intel-win%intel-win.compile.c++.pch-pch.obj.OBJ { 
> ../src/tr1/pch.hpp.HPP }
>  }
> 
> BTW Intel on win32 has the same pch mechanism as msvc, and the attached 
> patch fixes the bbv2 errors OK 

Please commit the patch.

> but: 
> 

> * Intel changes the name of the pch file to have a ".pchi" file extension so 
> dependency checking is broken and the pch gets regenerated every time bjam 
> is run, which in turn causes the whole project to rebuild :-(

Does adding:

        type.set-generated-target-suffix PCH : <toolset>intel <target-os>windows : pchi ;

to intel-win.jam fixes this problem?

> * Intel doesn't support the -Yl option, so you get a warning emitted when 
> building the pch

Can you copy-paste the compile-c-c++-pch and  compile-c-c++-pch-s actions from
msvc.jam to intel-win.jam and remove the -Yl option?

- Volodya