On Wed, Feb 29, 2012 at 09:50:06AM +0100, Dan Horák wrote:
Stephan Bergmann píše v St 29. 02. 2012 v 09:38 +0100:
> On 02/28/2012 09:18 PM, Bruno Wolff III wrote:
> > Are the same packages going to get automatically rebuilt in rawhide as
> > well as f17?
>
> Btw, does anybody have a pointer to that "ABI breakage in gcc 4.7 for
> c++" (i.e., was it an inadvertent breakage, or is there a planned
> incompatibility for GCC 4.7)?
from changelog in gcc-4.7.0-0.16.fc17
- fix vtable for std::num_get<char, std::istreambuf_iterator<char,
std::char_traits<char> > > and vtable for std::num_get<wchar_t,
std::istreambuf_iterator<wchar_t, std::char_traits<wchar_t> > > ABI
breakage
It was definitely not intentional and we were told that the gcc team
added new tests
Haven't added yet, but they will be soon, definitely for GCC 4.8.
So far the testing was only manual, attaching script that was used for that:
(./vtable-check.sh version1/libstdc++.a /tmp/version1; ./vtable-check.sh
version2/libstdc++.a /tmp/version2; diff -upr /tmp/version{1,2})
Jakub