[CMake] CMake creates a wrong install_name for frameworks with empty INSTALL_NAME_DIR property on Mac OS X

[Michael Wild]

Hi all

If the property is empty, CMake just uses the library name <name> as  
the install_name which is wrong. It should use <name>.framework/ 
Versions/<version>/<name>.

I created a bug report with an attached fix:

http://public.kitware.com/Bug/view.php?id=9054


Michael