Hello, On Wednesday 14 January 2009 12:59, Mauricio wrote:

Hi,

Here:

http://www.haskell.org/onlinereport/modules.html

I read:

"Modules may reference other modules via explicit import declarations, each giving the name of a module to be imported and specifying its entities to be imported. Modules may be mutually recursive."

However, I get this from GHC:

--- Module imports form a cycle for modules: main:Main imports: Control.Concurrent.MVar GtkMostrarConfig GtkLerECG Graphics.UI.Gtk main:GtkMostrarConfig imports: Control.Concurrent.MVar Graphics.UI.Gtk Main ---

Aren't cycles of modules just recursive modules? Why wasn't that allowed?

Have you looked at http://www.haskell.org/ghc/docs/latest/html/users_guide/separate-compilation... ? I never tried this myself, but it seems to explain some important details about how to compile mutually recursive modules using GHC.

Thanks, Maurício

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Best regards Thorkil