Re: [Haskell-beginners] Compiling Test.hs from reactive-fieldtrip

Hey, Thanks, it compiles now. But when I run it, I get a empty window not updating itself ... Does the Test.hs from reactive-fieldtrip run correctly anywhere else? Is reactive-fieldtrip up to date or is it outdated? (The last update is May 2009 ...). Regards, Nathan On Wed, 9 Jun 2010 02:41:19 -0400 Brent Yorgey wrote:

The .hs isn't necessary either. Here's the real answer: you simply need to add a -main-is flag to tell ghc that the module containing 'main' is not called 'Main'. So:

ghc --make Test -main-is Test

should do the trick.

-Brent

On Wed, Jun 09, 2010 at 03:47:55PM +1200, Stephen Blackheath [to Haskell-Beginners] wrote:

...

Nathan,

You must put the .hs on the input filename, but the '-o Test' isn't necessary. So you can type

ghc --make Test.hs

I took a look at this file, and the module name is 'Test'. If you change it to 'Main' it should work. I think this requirement was tightened up in newer versions of ghc.

Steve

On 09/06/10 15:36, Nathan Huesken wrote:

...

Hey,

Thank you for the answer. Now I get:

ghc --make Test -o Test Warning: output was redirected with -o, but no output will be generated because there is no Main module.

How am I supposed to comple this file?

On Tue, 8 Jun 2010 21:55:38 -0500 aditya siram wrote:

...

To compile an executable, tack on -o , so for instance, ghc --make HelloWorld.hs -o HelloWorld

creates an executable called `HelloWorld'. -deech

On 6/8/10, Nathan Huesken wrote:

...

Hi,

I am trying to compile the Test.hs form reactive-fieltrip. I did: ghc --make Test (22:09) [1 of 3] Compiling FRP.Reactive.FieldTrip.Adapter ( FRP/Reactive/FieldTrip/Adapter.hs, FRP/Reactive/FieldTrip/Adapter.o ) [2 of 3] Compiling FRP.Reactive.FieldTrip ( FRP/Reactive/FieldTrip.hs, FRP/Reactive/FieldTrip.o ) [3 of 3] Compiling Test ( Test.hs, Test.o )

Wonderfull, only it is not giving me an executable, only Test.o.

It has a main function, so how can I compile it? Thanks! nathan _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners

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