C++ ABI rebuilds for rawhide too?

Jakub Jelinek jakub at redhat.com
Wed Feb 29 08:55:07 UTC 2012


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
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