GCC 10

[Antonio Rojas]

Building with GCC 10 for the first time, I'm hitting this error:

In file included from /usr/include/c++/10.1.0/bits/locale_conv.h:41,
                from /usr/include/c++/10.1.0/locale:43,
                from /usr/include/c++/10.1.0/iomanip:43,
                from /usr/include/recint/rudisplay.h:47,
                from /usr/include/recint/ruint.h:75,
                from /usr/include/givaro/modular-ruint.h:14,
                from /usr/include/givaro/modular.h:26,
                from /usr/include/linbox/field/field-traits.h:30,
                from /usr/include/linbox/field/gf2.h:40,
                from /usr/include/linbox/vector/stream-gf2.h:77,
                from /usr/include/linbox/vector/stream.h:872,
                from /usr/include/linbox/matrix/densematrix/blas-matrix.h:42,
                from /usr/include/linbox/matrix/dense-matrix.h:79,
                from build/cythonized/sage/matrix/matrix_modn_sparse.cpp:747:
/usr/include/c++/10.1.0/bits/unique_ptr.h: In instantiation of ‘constexpr std::unique_ptr<_Tp, _Dp>::unique_ptr() [with _Del = std::__future_base::_Result
_base::_Deleter; <template-parameter-2-2> = void; _Tp = std::__future_base::_Result_base; _Dp = std::__future_base::_Result_base::_Deleter]’:
/usr/include/c++/10.1.0/future:324:77:   required from here
/usr/include/c++/10.1.0/bits/unique_ptr.h:269:9: error: no matching function for call to ‘std::__uniq_ptr_data<std::__future_base::_Result_base, std::__fu
ture_base::_Result_base::_Deleter, true, true>::__uniq_ptr_data()’
 269 |  : _M_t()
     |         ^

Does anybody have a fix at hand?

[Dima Pasechnik]

I don't think anyone managed top build Sage with gcc 10 yet.
Sage 9.1.rc5 includes a fix allowing a build of gcc 9 using gcc 10.

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[Michael Orlitzky]

On 5/19/20 9:32 AM, Antonio Rojas wrote:
> Building with GCC 10 for the first time, I'm hitting this error:

There's a list of gcc-10.x blockers at,

https://trac.sagemath.org/ticket/29456

[Antonio Rojas]

El martes, 19 de mayo de 2020, 15:32:07 (UTC+2), Antonio Rojas escribió:

Does anybody have a fix at hand?

OK, this turned out to be easy. Simply rebuilding the linbox stack with GCC 10 fixes it.