[GHC] #2093: getSymbolicLinkStatus (and possibly other functions) broken on systems with large file system support

[GHC]

#2093: getSymbolicLinkStatus (and possibly other functions) broken on systems with
large file system support
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    Reporter:  JeremyShaw  |       Owner:                
        Type:  bug         |      Status:  new           
    Priority:  normal      |   Component:  libraries/unix
     Version:  6.8.2       |    Severity:  major         
    Keywords:              |    Testcase:                
Architecture:  x86         |          Os:  Linux         
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 This thread contains more details:

 http://www.haskell.org/pipermail/haskell-cafe/2008-February/039549.html

 Basically, it appears that the unix module is built without the large
 filesystem support enabled, so it calls the 32-bit version of lstat. But
 hsc2hs includes header files that enable large file system support, so the
 offsets are for the stat64 struct. This means many fields in FileStatus
 are filled with garbage.

 I have attached a patch which adds the AC_SYS_LARGEFILE macro to
 configure.ac. This is the same macro which enables large file support in
 ghc. There could still be a problem however. For example, if you built ghc
 on a system without large file support, and but the unix module on a
 system with large file support -- then they would be out of sync. This
 patch seems better than the current situation however.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2093>
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