Re: [wxhaskell-users] Importing modules

[Andy G. <ha...@gi...>]

If you want ghc to chase dependencies when building an executable,  
pass it the --make flag, ie try:

> ghc --make -v -package wx -o main Main.hs


I think this will give you what you need - though I'm assuming  
those .hi files don't exist, ie you haven't compiled them separately  
and not told us.  :-)

Personally, I always build via cabal these days.  More info in section  
2.4 of: http://www.haskell.org/haskellwiki/How_to_write_a_Haskell_program

Hope this helps,

-Andy

On 12 Jan 2010, at 08:13, Mark Norrish wrote:

> Hello,
> I'm trying to write a script with wxHaskell involving modules, but  
> GHC doesn't seem able to find them. My program has a main module,  
> Main.hs:
>
> module Main where
> import Graphics.UI.WX
> import BlobboControls -- Blobbo is a circle one can move around the  
> screen
> functions...
>
> and BlobboControls.hs containing
>
> import BlobboControls where
> import Graphics.UI.WX
> more functions...
>
> and when I try to compile it, I get
>
> mark@mark-laptop:~/MyCode/Blobbo$ ghc -v -package wx -o main Main.hs

[snip]

> Main.hs:3:0:
>     Failed to load interface for `BlobboControls':
>       locations searched:
>         BlobboControls.hi
>         BlobboControls.hi-boot
> *** Deleting temp files:
> Deleting: /tmp/ghc5654_0/ghc5654_0.s
> Warning: deleting non-existent /tmp/ghc5654_0/ghc5654_0.s
> *** Deleting temp dirs:
> Deleting: /tmp/ghc5654_0
>
> Does anyone know why GHC could not BlobboControls.hs, or the module  
> in the .hi files?

--
Andy Gimblett
http://gimbo.org.uk/