unix 2.7.1.0
* Bundled with GHC 7.10.1
* Add support for `base-4.8.0.0`
* Tighten `SafeHaskell` bounds for GHC 7.10+
* Add haddock comments on `RTLD_NEXT` and `RTLD_DEFAULT`
* Deprecate function `haveRtldLocal`
* Fix `getGroupEntryForID/getGroupEntryForName` on Solaris. Solaris uses
CPP macros for required `getgrgid_r` and `getgrnam_r` functions definition
so the fix is to change from C ABI calling convention to C API calling
convention
* Fix potential type-mismatch in `telldir`/`seekdir` FFI imports
* Use CAPI FFI import for `truncate` to make sure the LFS-version is used.
* `executeFile`: Fix `ENOTDIR` error for entries with non-directory
components in `PATH` (and instead skip over non-directory `PATH`-elements)
* New functions in `System.Posix.Unistd`:
- `fileSynchronise` (aka `fsync(2)`), and
- `fileSynchroniseDataOnly` (aka `fdatasync(2)`)
* New module `System.Posix.Fcntl` providing
- `fileAdvise` (aka `posix_fadvise(2)`), and
- `fileAllocate` (aka `posix_fallocate(2)`)
* Fix SIGINFO and SIGWINCH definitions