Today I released a bugfix version of [`ghc::filesystem`](https://github.com/gulrak/filesystem). It only contains a fix for issue [#21](https://github.com/gulrak/filesystem/pull/21), where compiling on Alpine Linux with `musl` instead of `glibc` chooses the wrong `strerror_r` signature.

The musl headers sadly don’t conform to the preprocessor expression of the linux man file (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && ! _GNU_SOURCE for strerror_r, so there was no well defined preprocessor way of solving this.

In the end, the already very complex preprocessor define mix was dropped in favor of the usual dispatch by overloading a unifying wrapper [8e824ce].

You can grab the release from the releases page on GitHub.