pango doesn't build on ghc 7.6

[guest]

$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.6.1
$
$ cabal install pango
Resolving dependencies...
[1 of 2] Compiling SetupWrapper     ( /tmp/pango-0.12.4-9759/pango-0.12.4/SetupWrapper.hs, /tmp/pango-0.12.4-9759/pango-0.12.4/dist/setup/SetupWrapper.o )
[2 of 2] Compiling Main             ( /tmp/pango-0.12.4-9759/pango-0.12.4/Setup.hs, /tmp/pango-0.12.4-9759/pango-0.12.4/dist/setup/Main.o )
Linking /tmp/pango-0.12.4-9759/pango-0.12.4/dist/setup/setup ...
[1 of 2] Compiling Gtk2HsSetup      ( Gtk2HsSetup.hs, dist/setup-wrapper/Gtk2HsSetup.o )
[2 of 2] Compiling Main             ( SetupMain.hs, dist/setup-wrapper/Main.o )
Linking dist/setup-wrapper/setup ...
Configuring pango-0.12.4...
Building pango-0.12.4...
Preprocessing library pango-0.12.4...
[ 1 of 14] Compiling Graphics.Rendering.Pango.Types ( dist/build/Graphics/Rendering/Pango/Types.hs, dist/build/Graphics/Rendering/Pango/Types.o )

Graphics/Rendering/Pango/Types.chs:254:1:
    Unacceptable result type in foreign declaration: CUInt
    When checking declaration:
      foreign import ccall unsafe "static pango_context_get_type" pango_context_get_type
        :: CUInt

Graphics/Rendering/Pango/Types.chs:257:1:
    Unacceptable result type in foreign declaration: CUInt
    When checking declaration:
      foreign import ccall unsafe "static pango_layout_get_type" pango_layout_get_type
        :: CUInt

Graphics/Rendering/Pango/Types.chs:260:1:
    Unacceptable result type in foreign declaration: CUInt
    When checking declaration:
      foreign import ccall unsafe "static pango_font_get_type" pango_font_get_type
        :: CUInt

Graphics/Rendering/Pango/Types.chs:263:1:
    Unacceptable result type in foreign declaration: CUInt
    When checking declaration:
      foreign import ccall unsafe "static pango_font_family_get_type" pango_font_family_get_type
        :: CUInt

Graphics/Rendering/Pango/Types.chs:266:1:
    Unacceptable result type in foreign declaration: CUInt
    When checking declaration:
      foreign import ccall unsafe "static pango_font_face_get_type" pango_font_face_get_type
        :: CUInt

Graphics/Rendering/Pango/Types.chs:269:1:
    Unacceptable result type in foreign declaration: CUInt
    When checking declaration:
      foreign import ccall unsafe "static pango_fontset_get_type" pango_fontset_get_type
        :: CUInt
cabal: Error: some packages failed to install:
pango-0.12.4 failed during the building phase. The exception was:
ExitFailure 1

[guest]

This is also reflected on hackage: http://hackage.haskell.org/packages/archive/pango/0.12.4/logs/failure/ghc-7.6

[dmwit]

Can you give a few more details? "cabal install pango" works fine on GHC 7.6.1 here. What architecture/OS are you on? Does pango as it exists in the repository build for you?

[guest]

cabal install pango doesn't build for me either, but I'm on ghc 7.6.2.

amy@wombat$ uname -a
Linux wombat 3.2.0-4-amd64 #1 SMP Debian 3.2.35-2 x86_64 GNU/Linux
amy@wombat$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.6.2

I get the same error messages as the OP. And as already noted, it failed to build on the Hackage server.

Then I tried compiling the repository version:

darcs get http://code.haskell.org/gtk2hs/
cd gtk2hs
cd pango
cabal install

Exact same error!

[dmwit]

Aha! I think I finally managed to reproduce this error by downgrading gtk2hs-buildtools. Can you try installing the latest version of the build tools and try again?

[guest]

Worked for me! Thank you.