Re: Using -fext-core without a Main function

I suppose that does work :). Thanks! Are there any examples out there for reading in Core files using the ghc package? I can't really find anything that's up to date... -h Max Bolingbroke wrote:

The flag -fext-core is a red herring. GHC assumes any module with no "module" declaration is actually called Main and hence insists on a main declaration.

"""" mbolingbroke@Perihelion ~/tmp $ ghc -c Hal.hs

Hal.hs:1:0: The function `main' is not defined in module `Main' """

Compile this instead:

""" module Hal where addOne x = x + 1 """

Cheers, Max

On 13 April 2010 17:38, Hal Daume III wrote:

...

If I have a file 'Foo.hs' that contains one line 'addOne x = x + 1', I want to run something like:

ghc -c -fext-core Foo.hs

to get the core version of this file.

Unfortunately, when I do that, it complains that Main doesn't have a function main. And it doesn't produce the .hcr file.

I tried adding -no-hs-main but that doesn't help.

I can add 'main = undefined' to Foo.hs, but then the core file doesn't contain the declaration of addOne because it's not used.

Any suggestions?

Thanks!

-h

-- Hal Daume III --- me AT hal3 DOT name | http://www DOT hal3 DOT name "Arrest this man, he talks in maths." | http://nlpers.blogspot.com _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

-- Hal Daume III --- me AT hal3 DOT name | http://www DOT hal3 DOT name "Arrest this man, he talks in maths." | http://nlpers.blogspot.com