The Winpthreads Library
-----------------------

This library provides POSIX threading APIs for mingw-w64.

For maximum compatibility, winpthreads headers expose APIs without the
`dllimport` attribute by default. If your program is linked against the
DLL, you may define the `WINPTHREADS_USE_DLLIMPORT` macro to add the
`dllimport` attribute to all APIs, which makes function calls to them a
bit more efficient.