[Libreoffice] [REVIEW-3-4-5]Re: gcc 4.6.2 + boost 1.48.0 and unordered_map assignment operator const issues [was gcc 4.6.2]

[Petr Mladek]

Caolán McNamara píše v St 21. 12. 2011 v 11:38 +0000:

> after some digging the difference between 3.4 and 3.5 that makes 3.5
> build is that the gbuild modules are additionally built with -std=c++0x
> on 3.5 (only the dmake ones are built with that on 3.4).
> 
> Seems that a recent boost + recent gcc causes this problem when an
> boost::unordered_map is used as a baseclass for something, but asking
> gcc to use -std=c++0x mode makes gcc do the right thing.
> 
> Whether its a bug in gcc or boost I'm unsure really. But it wouldn't
> happen with an older boost like the builtin one, and I think using the
> attached patch would allow people to build 3.4 with bleeding edge
> external boost and gcc without hacking loads of copy-constructors
> manually.

The patch makes sense and looks safe to me. We use the same setting in
libreoffice-3-5 branch...

So, I have pushed it to the libreoffice-3-4 branch, see
http://cgit.freedesktop.org/libreoffice/bootstrap/commit/?h=libreoffice-3-4&id=9c2ab9f4febec2b2c5fac25469f1d0cfedc6af5e

We need two more approvals for 3-4-5 branch.

Thanks a lot for looking into it.


Best Regards,
Petr