posix/posix-xsi-2017-3-any.pkg.tar.zst build reproducible in our test framework:
e449c7a32db2b5eeedf00a97b3deee541028babc8b41eaf6c3eb911df753822f posix-xsi-2017-3-any.pkg.tar.zst
d4071c6d4e094e158f2502a1d78c65624a765b82d4fe469e1c194d376e0c7f41 posix-xsi-2017-3-any.pkg.tar.zst-b1.BUILDINFO.txt
d4071c6d4e094e158f2502a1d78c65624a765b82d4fe469e1c194d376e0c7f41 posix-xsi-2017-3-any.pkg.tar.zst-b2.BUILDINFO.txt