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Bug 1908185 - Possible GCC 11 regression when building Clementine: error: static assertion failed: invalid specialization
Summary: Possible GCC 11 regression when building Clementine: error: static assertion ...
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: clementine
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Robert-André Mauchin 🐧
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F34FTBFS
TreeView+ depends on / blocked
 
Reported: 2020-12-16 03:27 UTC by Robert-André Mauchin 🐧
Modified: 2020-12-17 06:00 UTC (History)
13 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-12-17 06:00:24 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Robert-André Mauchin 🐧 2020-12-16 03:27:10 UTC 
Works in F33, fails in Rawhide:


/usr/include/c++/11/ext/numeric_traits.h: In instantiation of 'struct __gnu_cxx::__numeric_traits_integer<__int128 unsigned>':
/usr/include/c++/11/bits/uniform_int_dist.h:250:31:   required from 'static _Up std::uniform_int_distribution<_IntType>::_S_nd(_Urbg&, _Up) [with _Wp = __int128 unsigned; _Urbg = std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>; _Up = long unsigned int; _IntType = int]'
/usr/include/c++/11/bits/uniform_int_dist.h:306:35:   required from 'std::uniform_int_distribution<_IntType>::result_type std::uniform_int_distribution<_IntType>::operator()(_UniformRandomBitGenerator&, const std::uniform_int_distribution<_IntType>::param_type&) [with _UniformRandomBitGenerator = std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>; _IntType = int; std::uniform_int_distribution<_IntType>::result_type = int]'
/usr/include/c++/11/bits/uniform_int_dist.h:192:34:   required from 'std::uniform_int_distribution<_IntType>::result_type std::uniform_int_distribution<_IntType>::operator()(_UniformRandomBitGenerator&) [with _UniformRandomBitGenerator = std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>; _IntType = int; std::uniform_int_distribution<_IntType>::result_type = int]'
/builddir/build/BUILD/Clementine-ccba649f622497b8463930b9ad5b7a1cafe6c976/src/globalsearch/spotifysearchprovider.cpp:276:33:   required from here
/usr/include/c++/11/ext/numeric_traits.h:64:53: error: static assertion failed: invalid specialization
   64 |       static_assert(__is_integer_nonstrict<_Value>::__value,
      |                                                     ^~~~~~~
/usr/include/c++/11/ext/numeric_traits.h:64:53: note: 'std::__is_integer<__int128 unsigned>::__value' evaluates to false
In file included from /usr/include/c++/11/bits/stl_algo.h:66,
                 from /usr/include/c++/11/algorithm:62,
                 from /usr/include/qt5/QtCore/qglobal.h:142,
                 from /usr/include/qt5/QtCore/qiodevice.h:43,
                 from /usr/include/qt5/QtCore/qprocess.h:43,
                 from /usr/include/qt5/QtCore/QProcess:1,
                 from /builddir/build/BUILD/Clementine-ccba649f622497b8463930b9ad5b7a1cafe6c976/src/internet/spotify/spotifyservice.h:25,
                 from /builddir/build/BUILD/Clementine-ccba649f622497b8463930b9ad5b7a1cafe6c976/src/globalsearch/spotifysearchprovider.h:21,
                 from /builddir/build/BUILD/Clementine-ccba649f622497b8463930b9ad5b7a1cafe6c976/src/globalsearch/spotifysearchprovider.cpp:18:
/usr/include/c++/11/bits/uniform_int_dist.h: In instantiation of 'static _Up std::uniform_int_distribution<_IntType>::_S_nd(_Urbg&, _Up) [with _Wp = __int128 unsigned; _Urbg = std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>; _Up = long unsigned int; _IntType = int]':
/usr/include/c++/11/bits/uniform_int_dist.h:306:35:   required from 'std::uniform_int_distribution<_IntType>::result_type std::uniform_int_distribution<_IntType>::operator()(_UniformRandomBitGenerator&, const std::uniform_int_distribution<_IntType>::param_type&) [with _UniformRandomBitGenerator = std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>; _IntType = int; std::uniform_int_distribution<_IntType>::result_type = int]'
/usr/include/c++/11/bits/uniform_int_dist.h:192:34:   required from 'std::uniform_int_distribution<_IntType>::result_type std::uniform_int_distribution<_IntType>::operator()(_UniformRandomBitGenerator&) [with _UniformRandomBitGenerator = std::mersenne_twister_engine<long unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>; _IntType = int; std::uniform_int_distribution<_IntType>::result_type = int]'
/builddir/build/BUILD/Clementine-ccba649f622497b8463930b9ad5b7a1cafe6c976/src/globalsearch/spotifysearchprovider.cpp:276:33:   required from here
/usr/include/c++/11/bits/uniform_int_dist.h:251:46: error: static assertion failed: W must be twice as wide as U
  251 |           static_assert(_Wp_traits::__digits == (2 * _Up_traits::__digits),
      |                                     ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/uniform_int_dist.h:251:46: note: '(((int)__gnu_cxx::__numeric_traits_integer<__int128 unsigned>::__digits) == (2 * ((int)__gnu_cxx::__numeric_traits_integer<long unsigned int>::__digits)))' evaluates to false
[ 75%] Building CXX object src/CMakeFiles/clementine_lib.dir/internet/googledrive/googledriveurlhandler.cpp.o


https://koji.fedoraproject.org/koji/taskinfo?taskID=57541136
Comment 1 Jeff Law 2020-12-16 03:30:50 UTC 
FWIW, my tester trips this as well, but clementine was failing with gcc-10 in rawhide before the introduction of gcc-11, so it never got high enough on my todo list to chase down.
Comment 2 Jonathan Wakely 2020-12-16 13:19:00 UTC 
This is a package bug, not a GCC bug.

The build.log shows that these build flags are used:

--std=c++0x -U__STRICT_ANSI__ 

This is stupid. It asks for strict C++0x conformance, then asks for non-strict conformance.

Just use -std=gnu++0x which means non-strict mode.

Better yet, remove that flag and let GCC use its default (which is now -std=gnu++17). It's 2020, you don't need to add options to get "C++0x" features now.
Comment 3 Jonathan Wakely 2020-12-16 14:59:06 UTC 
(In reply to Jonathan Wakely from comment #2)
> This is stupid. It asks for strict C++0x conformance, then asks for
> non-strict conformance.

Or more accurately, it asks the compiler for a strict conformance mode, then lies to the standard library about what mode the compiler is using.
Comment 4 Robert-André Mauchin 🐧 2020-12-16 19:19:36 UTC 
(In reply to Jonathan Wakely from comment #2)
> This is a package bug, not a GCC bug.
> 
> The build.log shows that these build flags are used:
> 
> --std=c++0x -U__STRICT_ANSI__ 
> 
> This is stupid. It asks for strict C++0x conformance, then asks for
> non-strict conformance.
> 
> Just use -std=gnu++0x which means non-strict mode.
> 
> Better yet, remove that flag and let GCC use its default (which is now
> -std=gnu++17). It's 2020, you don't need to add options to get "C++0x"
> features now.

(In reply to Jonathan Wakely from comment #3)
> (In reply to Jonathan Wakely from comment #2)
> > This is stupid. It asks for strict C++0x conformance, then asks for
> > non-strict conformance.
> 
> Or more accurately, it asks the compiler for a strict conformance mode, then
> lies to the standard library about what mode the compiler is using.


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