[vtkusers] Building VTK for XDarwin

[Robert Brown]

I get an error building VTK for XDarwin -- ld: Undefined symbols:
_New__22vtkXOpenGLRenderWindow
_New__26vtkXRenderWindowInteractor
_New__20vtkOpenGLImageWindow
_New__20vtkXOpenGLTextMapper
.objc_class_name_NSEvent
_NSApp
_objc_msgSend
.objc_class_name_NSApplication
.objc_class_name_NSAutoreleasePool
_objc_msgSend_stret
.objc_class_name_NSTimer
.objc_class_name_NSWindow
_objc_msgSendSuper
.objc_class_name_NSOpenGLPixelFormat
.objc_class_name_NSOpenGLView
_NSLog
__NSConstantStringClassReference
/usr/bin/libtool: internal link edit command failed
make[3]: *** [/Users/ceoyoyo/compilation/VTK-X/bin/libvtkRendering.dylib] Error 1
make[2]: *** [default_target] Error 2
make[1]: *** [default_target_Rendering] Error 2
make: *** [default_target] Error 2


Compiling for Quartz works fine, but not X.  Any suggestions?

Thanks,

Robb