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.
"""" mbolingbr...@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 <[email protected]> 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 > [email protected] > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users > > _______________________________________________ Glasgow-haskell-users mailing list [email protected] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
