Version 0.2.22 * Add `accept4` to FreeBSD and NetBSD * More work on Solaris/Illumos * Expose `*at` functions on more Unix platforms * Add `fdopendir` * Add `FIONREAD` for OSX * Add more `AT_*` constants * Add more `*64` syscalls on Linux * Add `fchown` * Add `UTIME_OMIT`, `UTIME_NOW` on Linux * Add `O_EXEC`, `O_SEARCH`, `O_PATH` * Add IPC, SHM, and MSG bindings for FreeBSD * Add support for `x86_64-linux-android` * Add IUTF8 to Linux * Add EXTPROC * Add pthread_atfork * Add sigprocmask * Add MINSIGSTKSZ to more platforms