Hello everyone, I'm a Haskell newbie trying out various programs from the web. I'm trying to compile one called bjpop-ray (from Bernie Pope, I think) and I hit this at link-time: ghc --make -O0 -package wx Main.hs -o bjpop-ray Chasing modules from: Main.hs Skipping Data ( ./Data.hs, ./Data.o ) Skipping Sphere ( ./Sphere.hs, ./Sphere.o ) Skipping Parser ( ./Parser.hs, ./Parser.o ) Skipping Vector ( ./Vector.hs, ./Vector.o ) Skipping Polygon ( ./Polygon.hs, ./Polygon.o ) Skipping RayTrace ( ./RayTrace.hs, ./RayTrace.o ) Skipping Main ( Main.hs, Main.o ) Linking ... /usr/bin/ld: Undefined symbols: ___DISCARD__ collect2: ld returned 1 exit status I'm on Mac OS 10.4.2, using ghc 6.4 (from the haskell.org .dmg) and gcc 4.0.0. Other wxHaskell programs (the samples and my own experiments) compile without tripping over this. Googling __DISCARD__ led me to "...the binary on the ghc web site has the evil __DISCARD__ mangler problem..." on the darwinports bug mailing list, so I guess I'm not the first person to see this. Is there a workaround? Does the Darwin port have the same problem? Should I just work on the many other things I've yet to grasp? Usually ghc works fine. Thanks, Steve -- How wonderful it is that nobody need wait a single moment before starting to improve the world. -- Anne Frank Paradise is exactly where you are right now...only much, much better. -- Laurie Anderson