posix/posix-user-portability-2017-3-any.pkg.tar.zst build reproducible in our test framework:
1e2585ac6e7fa6a5fb17bd8df9430aff8a4911f0a244c2b60bc4bc3f60ce894a posix-user-portability-2017-3-any.pkg.tar.zst
044ab55e9a614d1f120e168bfa9615ce475f6dc5cb7ff9aa80254d8f7201cb19 posix-user-portability-2017-3-any.pkg.tar.zst-b1.BUILDINFO.txt
044ab55e9a614d1f120e168bfa9615ce475f6dc5cb7ff9aa80254d8f7201cb19 posix-user-portability-2017-3-any.pkg.tar.zst-b2.BUILDINFO.txt