[Cmake] .mm files in CMake

[Andy Cedilnik]

Hi Yves,

Could you write a simple (hello world) program using C, C++, Objective C
and Objective C++ and put it in CMake testing? You can copy X11 test.

			Andy

On Mon, 2002-11-25 at 22:14, Yves Starreveld wrote:
> I recently tried to build vtk for Cocoa using the latest CMake, and got  
> the following:
> 
> CMake Error: Unexpected file type  
> /Users/ystarrev/Development/VTK/Rendering/ 
> vtkCocoaRenderWindowInteractor.mm
> CMake Error: Unexpected file type  
> /Users/ystarrev/Development/VTK/Rendering/vtkCocoaRenderWindow.mm
> CMake Error: Unexpected file type  
> /Users/ystarrev/Development/VTK/Rendering/vtkCocoaWindow.mm
> CMake Error: Unexpected file type  
> /Users/ystarrev/Development/VTK/Rendering/vtkCocoaGLView.mm
> 
> 
> .mm files are required to allow this to build, since they are ObjC++  
> files (allow a mix of Objective C and C++ in the same file)
> 
> I added support for .M and .mm files to CMake in the past, but this  
> appears to have stopped working.
> 
> Can anyone comment?
> 
> Could the problem be at line 54 of cmMakefile.cxx?
> 
>    this->AddSourceGroup("Source Files",  
> "\\.(cpp|C|c|cxx|rc|def|r|odl|idl|hpj|bat)$");
> 
> not having M and mm in there?
> 
> THanks.
> 
> Clearly I need to add a .mm specific test to the regression tests run  
> on Darwin...