On Tue, Dec 2, 2008 at 6:55 PM, Claus Reinke
I finally got round to trying cabal-install with OpenGL/GLUT, using a freshly built ghc head, a cygwin bash, and [...]
C:\Program Files\Haskell\GLUT-2.1.1.2\ghc-6.11.20081202/libHSGLUT-2.1.1.2.a(Window.o):fake: (.text+0x15): undefined reference to `glutWarpPointer' [...]
I believe these errors are caused by the wrong calling convention being used in the Haskell bindings. This part in the configure script tests the build (host) platform: case "$host" in *-mingw32) CALLCONV=stdcall ;; *) CALLCONV=ccall ;; esac Since it doesn't test for Cygwin, you end up with the calling convention being ccall, which leads to the linker errors because of associated name mangling (you would also see run-time crashes if you managed to somehow link your program). Pekka