Link errors after adding OpenGL framework

[minute]

Has anybody seen link errors after adding the OpenGL framework? I have an application that runs fine on both the device and the simulator, but after I add the OpenGL framework, it starts getting link errors when I compile for the simulator. At this point, even after I remove the OpenGL framework, my project can no longer run on the simulator.

My app also uses MediaPlayer, AVFoundation and AudioToolbox frameworks.

I also tried a different tactic. I started with XCode's starter OpenGL app. I confirm it runs fine on both device and simulator. I then start adding my domain classes (no view-related code) to the project. I also add the MediaPlayer, AVFoundation and AudioToolbox frameworks. When I build, I start getting errors. I remove everything I've added (my code and the add'l frameworks) and I still get the link errors.

Here's a sampling of the error messages I get:

  "_glGetRenderbufferParameterivOES", referenced from:
      -[EAGLView createFramebuffer] in EAGLView.o
      -[EAGLView createFramebuffer] in EAGLView.o
  "_glCheckFramebufferStatusOES", referenced from:
      -[EAGLView createFramebuffer] in EAGLView.o
      -[EAGLView createFramebuffer] in EAGLView.o
  "_glDeleteFramebuffersOES", referenced from:
      -[EAGLView destroyFramebuffer] in EAGLView.o
  ".objc_class_name_EAGLContext", referenced from:
      literal-pointer@__OBJC@__cls_refs@EAGLContext in EAGLView.o
  "_kEAGLDrawablePropertyColorFormat", referenced from:
      _kEAGLDrawablePropertyColorFormat$non_lazy_ptr in EAGLView.o
  "_glClearColor", referenced from:
      -[EAGLView drawView] in EAGLView.o
  "_kEAGLDrawablePropertyRetainedBacking", referenced from:
      _kEAGLDrawablePropertyRetainedBacking$non_lazy_ptr in EAGLView.o
  "_objc_msgSendSuper", referenced from:
      -[EAGLView initWithCoder:] in EAGLView.o
      -[EAGLView dealloc] in EAGLView.o
  "___CFConstantStringClassReference", referenced from:
      cfstring=failed to make complete framebuffer object %x in EAGLView.o
  "_glGenRenderbuffersOES", referenced from:
      -[EAGLView createFramebuffer] in EAGLView.o
  "_glBindRenderbufferOES", referenced from:
      -[EAGLView drawView] in EAGLView.o
      -[EAGLView createFramebuffer] in EAGLView.o
  "_glOrthof", referenced from:
      -[EAGLView drawView] in EAGLView.o
  "_glFramebufferRenderbufferOES", referenced from:
      -[EAGLView createFramebuffer] in EAGLView.o
  "_UIApplicationMain", referenced from:
      _main in main.o

The code still compiles when targetting a device, but I've seen video tutorials that show OpenGL works on the simulator. What am I doing wrong?

[minute]

Apologies, I mistakenly posted this to the "Advanced" forum, I meant to post it to the iPhone SDK Development forum. Is there a way to move this there?

thanks,
minute

[chum]

Did you ever get an answer to this? I'm having similar problems (different errors, but same thing: link errors in sim-only for GL-built-ins.) Examples:

  "_kEAGLDrawablePropertyRetainedBacking", referenced from:
      _kEAGLDrawablePropertyRetainedBacking$non_lazy_ptr in EAGLView.o
  "_kEAGLDrawablePropertyColorFormat", referenced from:
      _kEAGLDrawablePropertyColorFormat$non_lazy_ptr in EAGLView.o
  "_CGContextFillRect", referenced from:
      +[ScratchOffView imageOfSize:andColor:] in ScratchOffView.o

I'd sure love to be able to run my app on the simulator!