ubuntu-latest runners have an incompatible combination of clang and libstdc++ #8659
Description
Description
Some ubuntu-latest runners come with a newer version of libstdc++ and still have clang 14 which only has partial consteval support. As a result, trying to compile a file that does #include <chrono> fails like this:
In file included from /home/runner/work/Panda3DS/Panda3DS/src/config.cpp:8:
In file included from /home/runner/work/Panda3DS/Panda3DS/third_party/toml11/toml.hpp:32:
In file included from /home/runner/work/Panda3DS/Panda3DS/third_party/toml11/toml/parser.hpp:9:
In file included from /home/runner/work/Panda3DS/Panda3DS/third_party/toml11/toml/combinator.hpp:16:
In file included from /home/runner/work/Panda3DS/Panda3DS/third_party/toml11/toml/result.hpp:5:
In file included from /home/runner/work/Panda3DS/Panda3DS/third_party/toml11/toml/traits.hpp:10:
/usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/chrono:2320:48: error: call to consteval function 'std::chrono::hh_mm_ss::_S_fractional_width' is not a constant expression
static constexpr unsigned fractional_width = {_S_fractional_width()};
^
/usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/chrono:2320:48: note: undefined function '_S_fractional_width' cannot be used in a constant expression
/usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/chrono:2275:2: note: declared here
_S_fractional_width()
^
1 error generated.
gmake[2]: *** [CMakeFiles/Alber.dir/build.make:104: CMakeFiles/Alber.dir/src/config.cpp.o] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:588: CMakeFiles/Alber.dir/all] Error 2
gmake: *** [Makefile:136: all] Error 2Should be fixable by using clang 17.
Platforms affected
- Azure DevOps
- GitHub Actions - Standard Runners
- GitHub Actions - Larger Runners
Runner images affected
- Ubuntu 20.04
- Ubuntu 22.04
- macOS 11
- macOS 12
- macOS 13
- Windows Server 2019
- Windows Server 2022
Image version and build link
2.310.2
Link to a failing build: https://github.com/wheremyfoodat/Panda3DS/actions/runs/6640518979/job/18041094730
Ignore the "Setting up newer Clang" step in this run, the compilation step was still using the stock ubuntu-latest clang
Is it regression?
Yes (worked fine until yesterday: https://github.com/wheremyfoodat/Panda3DS/actions/runs/6614729350/job/17965319784)
Expected behavior
Runner clang should probably be able to compile this
Actual behavior
Some (not all) ubuntu-latest runners fail to compile C++ files that do #include <chrono>
Repro steps
- Have any C++ code that does
#include <chrono>, such as the Panda3DS repo above (without updating the compiler like it does now) - Set up some
ubuntu-latestactions for it. - Specific runners should fail with the error message listed in the "Description" field