Am Sonntag, 17. Mai 2009 01:07:55 schrieb Gregory D. Weber:
I'd like to get the scenegraph package (http://hackage.haskell.org/cgi-bin/hackage-scripts/package/scenegraph) to work, but am encountering linkage errors. [...] Also, I notice that in the cabal file for scenegraph, the list of exposed modules
Exposed-Modules: Graphics.SceneGraph, Graphics.SceneGraph.Basic, Graphics.SceneGraph.Vector, Graphics.SceneGraph.Render, Graphics.SceneGraph.SimpleViewport, Graphics.SceneGraph.GraphViz, Graphics.SceneGraph.Library, Graphics.SceneGraph.Dump, Graphics.SceneGraph.Textures
does not include Graphics.SceneGraph.Matrix, but that should only mean that I can't call functions of that module directly -- not that the other SceneGraph modules can't call them -- right? [...]
That basically means that the scenegraph package is broken. ;-) Internal modules have to be listed in "other-modules:", a section the Cabal file doesn't contain. As a quick fix, you can add all missing modules in this section, but this should of course be fixed in the official package, too. http://www.haskell.org/cabal/release/cabal-latest/doc/users- guide/authors.html#buildinfo Cheers, S.