[[!comment format=mdwn
 username="https://www.google.com/accounts/o8/id?id=AItOawkSq2FDpK2n66QRUxtqqdbyDuwgbQmUWus"
 nickname="Jimmy"
 subject="comment 5"
 date="2011-03-23T16:14:22Z"
 content="""
Actually I may have just been stupid and should have read the man page on statfs...

<pre>
jtang@x00:~/develop/git-annex $ git diff
diff --git a/StatFS.hsc b/StatFS.hsc
index 8b453dc..e10b2dd 100644
--- a/StatFS.hsc
+++ b/StatFS.hsc
@@ -53,7 +53,7 @@ import Foreign.C.String
 import Data.ByteString (useAsCString)
 import Data.ByteString.Char8 (pack)
 
-#if defined (__FreeBSD__)
+#if defined (__FreeBSD__) || defined (__APPLE__)
 # include <sys/param.h>
 # include <sys/mount.h>
 #else
@@ -84,8 +84,8 @@ data CStatfs
 #ifdef UNKNOWN
 #warning free space checking code not available for this OS
 #else
-#if defined(__FreeBSD__)
-foreign import ccall unsafe \"sys/mount.h statfs\"
+#if defined(__FreeBSD__) || defined (__APPLE__)
+foreign import ccall unsafe \"sys/mount.h statfs64\"
 #else
 foreign import ccall unsafe \"sys/vfs.h statfs64\"
 #endif
</pre>

yields this...

<pre>
jtang@x00:~/develop/git-annex $ ghci StatFS.hs                                                                                                                                    
GHCi, version 6.12.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
[1 of 1] Compiling StatFS           ( StatFS.hs, interpreted )
Ok, modules loaded: StatFS.
*StatFS> s <- getFileSystemStats \".\"
Loading package bytestring-0.9.1.7 ... linking ... done.
*StatFS> s
Just (FileSystemStats {fsStatBlockSize = 4096, fsStatBlockCount = 244106668, fsStatByteCount = 999860912128, fsStatBytesFree = 423097798656, fsStatBytesAvailable = 422835654656, fsStatBytesUsed = 576763113472})
*StatFS> 
</pre>


we could just stick another if defined (__APPLE__) instead of what I previously had and it looks like it will do the right thing on OSX.


"""]]