Wrap posix_fadvise(2) and posix_fallocate(2)

This adds two new functions in `System.Posix.Unistd`

 - `fileAdvise` (aka `posix_fadvise(2)`), and
 - `fileAllocate` (aka `posix_fallocate(2)`)

This is based in part on #7 and has been heavily refactored from its
original patch submission by Ricardo Catalinas Jiménez.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/unix.cabal b/unix.cabal
index 7bcf0d9..cc9c646 100644
--- a/unix.cabal
+++ b/unix.cabal
@@ -96,6 +96,8 @@ library
         System.Posix.Env
         System.Posix.Env.ByteString
 
+        System.Posix.Fcntl
+
         System.Posix.Process
         System.Posix.Process.Internals
         System.Posix.Process.ByteString