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# Changelog for [`unix` package](http://hackage.haskell.org/package/unix)
## 2.7.2.2 *May 2017*
* Bundled with GHC 8.2.1
* Improve Autoconf detection of `telldir`/`seekdir` and define
`_POSIX_VDISABLE` if missing for Android (#91,#90)
* Fix error message of `createSymbolicLink` (#84)
## 2.7.2.1 *Nov 2016*
* Bundled with GHC 8.0.2
* Don't use `readdir_r` if its deprecated.
* Add argument documentation for Env modules
## 2.7.2.0 *Apr 2016*
* Bundled with GHC 8.0.1
* Don't assume non-POSIX `WCOREDUMP(x)` macro exists
* Don't assume existence of `termios(3)` constants beyond `B38400`
* Don't assume existence of `ctermid(3)`/`tcdrain(3)`
* Change `drainOutput`'s `tcdrain(3)` into a `safe` FFI call
* Turn build error into compile warnings for exotic `struct stat`
configurations (GHC #8859)
* Improve detection of `fdatasync(2)` (GHC #11137)
* Drop support for Hugs
* Drop support for Cygwin (and Windows in general)
## 2.7.1.0 *Dec 2014*
* 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
## 2.7.0.1 *Mar 2014*
* Bundled with GHC 7.8.1
* Handle `EROFS` and `ETXTBSY` as (non-exceptional) permission denied in
`fileAccess`
* Fix `getFileStatus` to retry `stat(2)` when it returns `EAGAIN`
(this can happen on Solaris)
## 2.7.0.0 *Nov 2013*
* New `forkProcessWithUnmask` function in the style of `forkIOWithUnmask`
* Change `forkProcess` to inherit the exception masking state of its caller
* Add new `Bool` flag to `ProcessStatus(Terminated)` constructor
indicating whether a core dump occured
* New functions in `System.Posix.Files{,.ByteString}` for operating
on high resolution file timestamps:
setFdTimesHiRes :: Fd -> POSIXTime -> POSIXTime -> IO ()
setFileTimesHiRes :: FilePath -> POSIXTime -> POSIXTime -> IO ()
setSymbolicLinkTimesHiRes :: FilePath -> POSIXTime -> POSIXTime -> IO ()
touchFd :: Fd -> IO ()
touchSymbolicLink :: FilePath -> IO ()
* Export `SignalInfo(..)` and `SignalSpecificInfo(..)` as well as
the two `Handler` constructors `CatchInfo` and `CatchInfoOnce`
from `System.Posix.Signals`
* Don't export `seekDirStream` and `tellDirStream` if the underlying
`seekdir(3)`/`telldir(3)` system calls are not available (as on Android)
* Fix library detection of `shm*` on openSUSE (#8350)
* Minor documentation fixes/updates
* Update package to `cabal-version >= 1.10` format
## 2.6.0.1 *Jan 2013*
* Bundled with GHC 7.6.2
* Fix memory corruption issue in `putEnv`
* Use `pthread_kill(3)` instead of `raise(2)` on OS X too
## 2.6.0.0 *Sep 2012*
* Bundled with GHC 7.6.1
* New functions `mkdtemp` and `mkstemps` in `System.Posix.Temp`
* New functions `setEnvironment` and `cleanEnv`
* New functions `accessTimeHiRes`, `modificationTimeHiRes`, and
`statusChangeTimeHiRes` for accessing high resolution timestamps
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