Compile errors occur when using gcc 14

[kpvdr]

When building opentelemetry-cpp 1.14.2 for Fedora using gcc-c++ 14.0.1 (which is the default for upcoming Fedora 40 and rawhide), compile errors occur. Builds for the current Fedora 38 and 39 which use gcc-c++ 13.2.1 succeed.

The errors appear to concern templates and their argument lists. The builds may be seen on Copr[1] with the build logs and environments. All the failed builds are using gcc 14.0.1. When I built 1.13.0 a few months back, Fedora 40 and rawhide were still using gcc 1.13.2, and they were successful. All the build failures for Fedora 40 and rawhide appear to be identical.

Because Copr deletes the build logs for failed builds after a few days, I have attached the log for the x86_64 rawhide build.
builder-live.log.gz

[1] https://copr.fedorainfracloud.org/coprs/kpvdr/opentelemetry-cpp/build/7153160/

[owent]

GCC 14 is not released yet. I will test and fix all the compatibility problem after GCC 14 is released.

[kpvdr]

It appears that 14 is not yet officially released on gnu.org. However, Fedora 40 has been released and uses gcc 14.0.1.

[kpvdr]

gcc 14.1 was relesaed on May 7. (https://gcc.gnu.org/gcc-14)

[owent]

Thanks, I will test it several days later.

[marcalff]

Can not reproduce.

The opentelemetry-cpp CI was upgraded to use gcc-14, and it passes without code changes:

• [CI] Upgrade Maintainers CI to ubuntu-24.04 #2670

Please reopen with details if this is still an issue.