> cabal install c2hs
Resolving dependencies...
Configuring c2hs-0.16.3...
Building c2hs-0.16.3...
Preprocessing executable 'c2hs' for c2hs-0.16.3...
[ 1 of 26] Compiling Data.DLists      ( src/Data/DLists.hs, dist/build/c2hs/c2hs-tmp/Data/DLists.o )
[ 2 of 26] Compiling Control.StateTrans ( src/Control/StateTrans.hs, dist/build/c2hs/c2hs-tmp/Control/StateTrans.o )

src/Control/StateTrans.hs:62:8:
    Warning: In the use of `catch'
             (imported from Prelude, but defined in System.IO.Error):
             Deprecated: "Please use the new exceptions variant, Control.Exception.catch"
[ 3 of 26] Compiling Data.Errors      ( src/Data/Errors.hs, dist/build/c2hs/c2hs-tmp/Data/Errors.o )
[ 4 of 26] Compiling Data.Attributes  ( src/Data/Attributes.hs, dist/build/c2hs/c2hs-tmp/Data/Attributes.o )
[ 5 of 26] Compiling Text.Lexers      ( src/Text/Lexers.hs, dist/build/c2hs/c2hs-tmp/Text/Lexers.o )
[ 6 of 26] Compiling Control.StateBase ( src/Control/StateBase.hs, dist/build/c2hs/c2hs-tmp/Control/StateBase.o )
[ 7 of 26] Compiling Data.NameSpaces  ( src/Data/NameSpaces.hs, dist/build/c2hs/c2hs-tmp/Data/NameSpaces.o )
[ 8 of 26] Compiling C2HS.C.Attrs     ( src/C2HS/C/Attrs.hs, dist/build/c2hs/c2hs-tmp/C2HS/C/Attrs.o )
[ 9 of 26] Compiling C2HS.C.Builtin   ( src/C2HS/C/Builtin.hs, dist/build/c2hs/c2hs-tmp/C2HS/C/Builtin.o )
[10 of 26] Compiling Paths_c2hs       ( dist/build/autogen/Paths_c2hs.hs, dist/build/c2hs/c2hs-tmp/Paths_c2hs.o )
[11 of 26] Compiling C2HS.Config      ( src/C2HS/Config.hs, dist/build/c2hs/c2hs-tmp/C2HS/Config.o )

src/C2HS/Config.hs:147:1:
    Warning: newtype `CInt' is used in an FFI declaration,
             but its constructor is not in scope.
             This will become an error in GHC 7.6.1.
    When checking declaration:
      foreign import ccall safe "static config.h bitfield_direction" bitfield_direction
        :: CInt

src/C2HS/Config.hs:159:1:
    Warning: newtype `CInt' is used in an FFI declaration,
             but its constructor is not in scope.
             This will become an error in GHC 7.6.1.
    When checking declaration:
      foreign import ccall safe "static config.h bitfield_padding" bitfield_padding
        :: CInt

src/C2HS/Config.hs:167:1:
    Warning: newtype `CInt' is used in an FFI declaration,
             but its constructor is not in scope.
             This will become an error in GHC 7.6.1.
    When checking declaration:
      foreign import ccall safe "static config.h bitfield_int_signed" bitfield_int_signed
        :: CInt

src/C2HS/Config.hs:177:1:
    Warning: newtype `CInt' is used in an FFI declaration,
             but its constructor is not in scope.
             This will become an error in GHC 7.6.1.
    When checking declaration:
      foreign import ccall safe "static config.h bitfield_alignment" bitfield_alignment
        :: CInt
[12 of 26] Compiling C2HS.Switches    ( src/C2HS/Switches.hs, dist/build/c2hs/c2hs-tmp/C2HS/Switches.o )
[13 of 26] Compiling C2HS.Version     ( src/C2HS/Version.hs, dist/build/c2hs/c2hs-tmp/C2HS/Version.o )
[14 of 26] Compiling System.CIO       ( src/System/CIO.hs, dist/build/c2hs/c2hs-tmp/System/CIO.o )
[15 of 26] Compiling Control.State    ( src/Control/State.hs, dist/build/c2hs/c2hs-tmp/Control/State.o )
[16 of 26] Compiling C2HS.State       ( src/C2HS/State.hs, dist/build/c2hs/c2hs-tmp/C2HS/State.o )
[17 of 26] Compiling C2HS.CHS.Lexer   ( src/C2HS/CHS/Lexer.hs, dist/build/c2hs/c2hs-tmp/C2HS/CHS/Lexer.o )
[18 of 26] Compiling C2HS.CHS         ( src/C2HS/CHS.hs, dist/build/c2hs/c2hs-tmp/C2HS/CHS.o )
[19 of 26] Compiling C2HS.Gen.Header  ( src/C2HS/Gen/Header.hs, dist/build/c2hs/c2hs-tmp/C2HS/Gen/Header.o )
[20 of 26] Compiling C2HS.C.Trav      ( src/C2HS/C/Trav.hs, dist/build/c2hs/c2hs-tmp/C2HS/C/Trav.o )

src/C2HS/C/Trav.hs:249:28:
    Warning: A do-notation statement discarded a result of type Maybe
                                                                  CTag.
             Suppress this warning by saying "_ <- ($)
                                                     transAttrCCT
                                                     \ ac -> addDefTagC ac ide fullTag",
             or by using the flag -fno-warn-unused-do-bind
[21 of 26] Compiling C2HS.C.Names     ( src/C2HS/C/Names.hs, dist/build/c2hs/c2hs-tmp/C2HS/C/Names.o )
[22 of 26] Compiling C2HS.C           ( src/C2HS/C.hs, dist/build/c2hs/c2hs-tmp/C2HS/C.o )
[23 of 26] Compiling C2HS.Gen.Monad   ( src/C2HS/Gen/Monad.hs, dist/build/c2hs/c2hs-tmp/C2HS/Gen/Monad.o )

src/C2HS/Gen/Monad.hs:214:10:
    Warning: orphan instance: instance Read Ident
[24 of 26] Compiling C2HS.C.Info      ( src/C2HS/C/Info.hs, dist/build/c2hs/c2hs-tmp/C2HS/C/Info.o )
[25 of 26] Compiling C2HS.Gen.Bind    ( src/C2HS/Gen/Bind.hs, dist/build/c2hs/c2hs-tmp/C2HS/Gen/Bind.o )

src/C2HS/Gen/Bind.hs:724:10:
    Warning: orphan instance: instance Num CInteger
[26 of 26] Compiling Main             ( src/Main.hs, dist/build/c2hs/c2hs-tmp/Main.o )
Linking dist/build/c2hs/c2hs ...
Installing executable(s) in /home/gatoatigrado/.cabal/bin