Re: [Haskell-cafe] GLfloat on a Mac

$ ghc -package GLUT HelloWorld.lhs -o HelloWorld Illegal instruction

I'm using ghc 6.8.3 on a Mac PowerBook G4. Googling "OpenGL illegal instruction" produced an unending choice of horror stories.

Not much help, but it compiles fine for me using ghc-6.8.3 on an iBook G4. I'm running MacOS 10.5.4, with gcc-4.0.1. Is it possible you have an older version of XCode (Apple's developer tools including gcc)? Regards, Malcolm