Bugs and missing coverage in build-time or integration tests

Label for issues with patches that have not been converted into merge requests

You had a problem, so you solved it with threads, and two now problem you (Segmentation fault, core dumped.)

MSYS2 Unix-emulation environment on Windows

gcc compilers that produce native Windows executables targeting MSVCRT

FreeBSD and closely related OSs

Deprecated functionality, features that might be removed, platform support that might be dropped

Issues involving the Cygwin Unix-emulation runtime on Windows

Continuous integration issues (Gitlab-CI, Travis-CI, Appveyor)

Some issues seem easy to solve, but are not. This is unlikely to be a good starting point for new contributors.

Bugs involving automated test failures