Hi all, I'd like to make some use of OpenGL with Haskell (under Win2000). Here is some code: module Main where import Graphics.Rendering.OpenGL.GL import Graphics.Rendering.OpenGL.GLU import Graphics.UI.GLUT main = do ver <- get gluVersion putStrLn ver getArgsAndInitialize fullScreen wnd <- createWindow "Hello World" vertex (Vertex2 (100::GLint) 100) return () Compilation (linking) fails with: $ ghc --make openglapp.hs -o openglapp.exe Chasing modules from: openglapp.hs Compiling Main ( openglapp.hs, openglapp.o ) Linking ... c:/ghc/ghc-6.2/libHSGLUT.a(Initialization__158.o)(.text+0x123):ghc16024.hc: unde fined reference to `glutInit@8' c:/ghc/ghc-6.2/libHSGLUT.a(Window__61.o)(.text+0x33):ghc14736.hc: undefined refe rence to `glutFullScreen@0' c:/ghc/ghc-6.2/libHSGLUT.a(Window__53.o)(.text+0x85):ghc14736.hc: undefined refe rence to `glutCreateWindow@4' Manually adding -lglut -lglut32 does not help. Libraries libglut32.a and libglut.a are there, they contain needed symbols but with '_' prepended, like _glutInit@8. Functions from GL and GLU link perfectly. They do even work correctly when run. Only GLUT ones do not :( Has anybody compiled anything for GL recently? Google pointed me only to some old, not relevant any more, material. Am I missing something obvious here? GHC 6.2, installer for Window taken from www.haskell.org, Win2000 Professional. -- Gracjan