[GHC] #9079: Foreign.C.Types in haskell2010

[GHC]

#9079: Foreign.C.Types in haskell2010
-----------------------------------------+---------------------------------
       Reporter:  tensor5                |             Owner:
           Type:  bug                    |            Status:  new
       Priority:  normal                 |         Milestone:
      Component:  libraries/haskell2010  |           Version:  7.8.2
       Keywords:                         |  Operating System:
   Architecture:  Unknown/Multiple       |  Unknown/Multiple
     Difficulty:  Unknown                |   Type of failure:  None/Unknown
     Blocked By:                         |         Test Case:
Related Tickets:                         |          Blocking:
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 According to Haskell 2010, a marshallable foreign type has to be a
 `newtype` of a basic type with exposed constructor. Why constructors are
 not exposed in the module `Foreign.C.Types` from `haskell2010`?
 When I replace `base` with `haskell2010` in

 {{{
 module Test where

 import Foreign.C

 foreign import ccall unsafe "sys/mount.h umount" umount :: CString -> IO
 CInt
 }}}

 I get

 {{{
 Unacceptable result type in foreign declaration: IO CInt
 When checking declaration:
   foreign import ccall unsafe "static sys/mount.h umount" umount
     :: CString -> IO CInt
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9079>
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