[vtkusers] Building VTK for XDarwin

[Marcel Prastawa]

Robert Brown wrote:
> I get an error building VTK for XDarwin -- ld: Undefined symbols:

[snip]

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

Robert,

You need to make sure that you are not linking against Apple's OpenGL 
library and link to /usr/X11R6/lib/libGL.dylib instead.

If I recall correctly, I needed to modify several files in the Rendering 
directory. In CMakeLists.txt you may need to add vtkXOpenGL... in the 
APPLE section. Also, in some of the source files, you need to change 
#include <OpenGL/gl.h> to #include <GL/gl.h> inside the #ifdef __APPLE__ 
blocks.

I did this quite some time ago, so all this may not apply to the current 
version. If you are interested, I have the 4.0 binaries for XDarwin ( a 
bit old). One warning though, VTK on XDarwin is slow (no hardware 
acceleration).

Marcel