Using -fext-core without a Main function

[Hal Daume III]

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 at 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 <hal at cs.utah.edu> 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
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>>
>>

-- 
  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