#18240: fix MPIR's compliance with c++
-------------------------------------+-------------------------------------
Reporter: dimpase | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.7
Component: packages: | Resolution:
standard | Merged in:
Keywords: | Reviewers:
Authors: Dima Pasechnik | Work issues:
Report Upstream: Reported | Commit:
upstream. Developers acknowledge | d358636766bf0abae69bb07f154053180bd14a8a
bug. | Stopgaps:
Branch: u/dimpase/18240 |
Dependencies: |
-------------------------------------+-------------------------------------
Old description:
> with gcc 4.9.2, we hit this bug:
>
> [https://gcc.gnu.org/gcc-4.9/porting_to.html Header <cstddef> changes]
> The <cstddef> header was updated for C++11 support and this breaks some
> libraries which misuse macros meant for internal use by GCC only. For
> instance with GMP versions up to 5.1.3, you may see:
> {{{
> /usr/include/c++/4.9.0/cstddef:51:11: error: â::max_align_tâ has not been
> declared
> using ::max_align_t;
> }}}
>
> This has hit here: #18198, see also
> [https://gcc.gnu.org/gcc-4.9/porting_to.html sage-devel thread]
>
> The workaround suggested by the gcc people appears to work.
New description:
with gcc 4.9.2, we hit this bug:
[https://gcc.gnu.org/gcc-4.9/porting_to.html Header <cstddef> changes]
The <cstddef> header was updated for C++11 support and this breaks some
libraries which misuse macros meant for internal use by GCC only. For
instance with GMP versions up to 5.1.3, you may see:
{{{
/usr/include/c++/4.9.0/cstddef:51:11: error: â::max_align_tâ has not been
declared
using ::max_align_t;
}}}
This has hit here: #18198, see also [https://groups.google.com/d/msg/sage-
devel/Tu-egDn-zLw/0S5ouau2J1AJ sage-devel thread]
The workaround suggested by the gcc people appears to work.
--
Comment (by dimpase):
(fixed the link to sage-devel)
my understanding is that upstream is not in hurry to fix this properly, as
it's not easy.
--
Ticket URL: <http://trac.sagemath.org/ticket/18240#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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