Re: [Boost-build] [PING] State of PCH/msvc

From: Vladimir Prus (ghost_at_[hidden])
Date: 2006-04-26 08:04:26

On Wednesday 26 April 2006 15:57, Alex Besogonov wrote:
> Vladimir Prus wrote:
> > Any comments on below?
> >
> >> Can somebody update me on the state of PCH/msvc? Are there any docs how
> >> to use them? Any known issues?
> >>
> >> Basically, I'm trying to find out if this feature should be included in
> >> release notes for M11, or left for M12 (to appear together with PCH/gcc)
>
> No.
>
> PCH is nowhere close to "release" state. There are numerous issues with
> PCH on MSVC:
> 1. Property propagation (I've raised this issue before).

Is this the same issue that Bojan has reported.

> 2. Debug information: PCH is does not work well with C7-style debug info
>   and database-style debug storage is currently broken ("# not used yet").

What changes are necessary in this part?

> 3. Problems with PCH and static libraries.

Will   /Yl__bjam_pch_symbol option fix them?

> 4. It would be nice if Boost libraries themselves used precompiled
> headers (at least for testing purposes).

But it's lot of work.

> 5. PCH on GCC is broken (the last time I checked).

Well, I never though it works at all ;-)

- Volodya

-- 
Vladimir Prus
http://vladimir_prus.blogspot.com
Boost.Build V2: http://boost.org/boost-build2