In line with the eventual removal of 'libcrypt' and 'crypt.h' from
glibc[0], Gentoo linux, following in the footsteps of Fedora[1], has been
evaluating using libxcrypt[2] as provider of libcrypt.so* and the crypt.h
header (see [3]). As the distro continues, and is increasing in interest
with musl-libc, we have been trying to work out how best to integrate the
new libxcrypt with musl without file collisions, as it's not (yet) apparent
how to disable the built-in crypt.h within musl. Has the musl team
considered possibl compatibility with libxcrypt moving forwards yet?

[0] https://sourceware.org/ml/libc-alpha/2017-08/msg01257.html
[1]
https://fedoraproject.org/wiki/Changes/Replace_glibc_libcrypt_with_libxcrypt
[2] https://github.com/besser82/libxcrypt
[3] https://bugs.gentoo.org/show_bug.cgi?id=699422