Support for GHC 7.10.1

[FranklinChen]

Please update base bound to allow 4.8, for GHC 7.10.1. Also, update .travis.yml accordingly, with the latest from https://github.com/hvr/multi-ghc-travis

[nomeata]

Thanks for the report. ghc-heap-view relies on internals of GHC, so it is not simply a matter of updating the bounds. Did you test whether it works for you unchanged?

[FranklinChen]

I did run cabal test, but that is all I did. I don't use ghc-heap-view directly, but am in the process of trying to get a package to compile that depends on it.

[eigengrau]

FWIW, if I force the bounds to fit, there seems to have been an API change in a dependency. Might be Cairo. I had to install Cairo/Pango/gtk2hs from git, so this was with Cairo/Pango 0.13.1.0, and gtk2hs 0.13.6. ghc-heap-view did compile, though.

In order, the following will be installed:
ghc-heap-view-0.5.3 (reinstall)
ghc-vis-0.7.2.7 (new package)
Warning: Note that reinstalls are always dangerous. Continuing anyway...
Notice: installing into a sandbox located at
/home/seb/Dev/spielwiese/hs/ghc-vis/.cabal-sandbox
Configuring ghc-heap-view-0.5.3...
Building ghc-heap-view-0.5.3...
Installed ghc-heap-view-0.5.3
Configuring ghc-vis-0.7.2.7...
Building ghc-vis-0.7.2.7...
Failed to install ghc-vis-0.7.2.7
Build log ( /home/seb/Dev/spielwiese/hs/ghc-vis/.cabal-sandbox/logs/ghc-vis-0.7.2.7.log ):
[1 of 1] Compiling Main             ( /home/seb/Dev/spielwiese/hs/ghc-vis/ghc-vis/dist/dist-sandbox-ecaa9ed3/setup/setup.hs, /home/seb/Dev/spielwiese/hs/ghc-vis/ghc-vis/dist/dist-sandbox-ecaa9ed3/setup/Main.o )
Linking /home/seb/Dev/spielwiese/hs/ghc-vis/ghc-vis/dist/dist-sandbox-ecaa9ed3/setup/setup ...
Configuring ghc-vis-0.7.2.7...
Building ghc-vis-0.7.2.7...
Preprocessing library ghc-vis-0.7.2.7...
[1 of 8] Compiling GHC.Vis.Types    ( src/GHC/Vis/Types.hs, dist/dist-sandbox-ecaa9ed3/build/GHC/Vis/Types.o )

src/GHC/Vis/Types.hs:49:22: Warning:
    Variable ‘w’ is implicitly quantified due to a context
    Use explicit forall syntax instead.
    This will become an error in GHC 7.12.
    In the type ‘WidgetClass w => w -> IO ()’
    In the definition of data constructor ‘View’

src/GHC/Vis/Types.hs:51:22: Warning:
    Variable ‘w’ is implicitly quantified due to a context
    Use explicit forall syntax instead.
    This will become an error in GHC 7.12.
    In the type ‘WidgetClass w => w -> IO ()’
    In the definition of data constructor ‘View’

src/GHC/Vis/Types.hs:99:17: Warning:
    This binding for ‘x’ shadows the existing binding
      imported from ‘Graphics.Rendering.Cairo’ at src/GHC/Vis/Types.hs:29:1-31
      (and originally defined in ‘Graphics.Rendering.Cairo.Types’)

src/GHC/Vis/Types.hs:100:15: Warning:
    This binding for ‘x’ shadows the existing binding
      imported from ‘Graphics.Rendering.Cairo’ at src/GHC/Vis/Types.hs:29:1-31
      (and originally defined in ‘Graphics.Rendering.Cairo.Types’)

src/GHC/Vis/Types.hs:101:14: Warning:
    This binding for ‘x’ shadows the existing binding
      imported from ‘Graphics.Rendering.Cairo’ at src/GHC/Vis/Types.hs:29:1-31
      (and originally defined in ‘Graphics.Rendering.Cairo.Types’)

src/GHC/Vis/Types.hs:102:15: Warning:
    This binding for ‘x’ shadows the existing binding
      imported from ‘Graphics.Rendering.Cairo’ at src/GHC/Vis/Types.hs:29:1-31
      (and originally defined in ‘Graphics.Rendering.Cairo.Types’)

src/GHC/Vis/Types.hs:103:18: Warning:
    This binding for ‘x’ shadows the existing binding
      imported from ‘Graphics.Rendering.Cairo’ at src/GHC/Vis/Types.hs:29:1-31
      (and originally defined in ‘Graphics.Rendering.Cairo.Types’)
[2 of 8] Compiling GHC.Vis.Internal ( src/GHC/Vis/Internal.hs, dist/dist-sandbox-ecaa9ed3/build/GHC/Vis/Internal.o )

src/GHC/Vis/Internal.hs:27:1: Warning:
    The import of ‘Data.Word’ is redundant
      except perhaps to import instances from ‘Data.Word’
    To import instances alone, use: import Data.Word()

src/GHC/Vis/Internal.hs:38:10: Warning:
    Orphan instance: instance Eq Box
    To avoid this
        move the instance declaration to the module of the class or of the type, or
        wrap the type with a newtype and declare the instance on the new type.
[3 of 8] Compiling GHC.Vis.View.Common ( src/GHC/Vis/View/Common.hs, dist/dist-sandbox-ecaa9ed3/build/GHC/Vis/View/Common.o )
[4 of 8] Compiling GHC.Vis.View.List ( src/GHC/Vis/View/List.hs, dist/dist-sandbox-ecaa9ed3/build/GHC/Vis/View/List.o )

src/GHC/Vis/View/List.hs:24:1: Warning:
    The import item ‘PangoLayout(..)’ suggests that
    ‘PangoLayout’ has (in-scope) constructors or class methods,
    but it has none

src/GHC/Vis/View/List.hs:24:1: Warning:
    The import item ‘WidgetClass(..)’ suggests that
    ‘WidgetClass’ has (in-scope) constructors or class methods,
    but it has none
[5 of 8] Compiling GHC.Vis.View.Graph.Parser ( src/GHC/Vis/View/Graph/Parser.hs, dist/dist-sandbox-ecaa9ed3/build/GHC/Vis/View/Graph/Parser.o )

src/GHC/Vis/View/Graph/Parser.hs:128:58:
    Not in scope: ‘getDimensions’
Updating documentation index
/home/seb/Dev/spielwiese/hs/ghc-vis/.cabal-sandbox/share/doc/x86_64-linux-ghc-7.10.1/index.html
cabal: Error: some packages failed to install:
ghc-vis-0.7.2.7 failed during the building phase. The exception was:
ExitFailure 1

[nomeata]

Well, that’s ghc-vis that needs updating here. Did you test ghc-heap-view directly, e.g. from ghci?