No subject

added but "/PrivateHeaders" which is not there.


```
SET(TK_FRAMEWORK_INCLUDES)
IF(Tk_FRAMEWORKS)
  IF(NOT TK_INCLUDE_PATH)
    FOREACH(dir ${Tk_FRAMEWORKS})
      SET(TK_FRAMEWORK_INCLUDES ${TK_FRAMEWORK_INCLUDES}
        ${dir}/Headers ${dir}/PrivateHeaders)
    ENDFOREACH(dir)
  ENDIF(NOT TK_INCLUDE_PATH)
ENDIF(Tk_FRAMEWORKS)
```



Steps to Reproduce: 
I stumbled upon this trying to build vtk on OS X.


Additional Information: 

The homebrew vtk formula
https://github.com/mxcl/homebrew/pull/12807
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2012-06-18 08:38 Samuel John    New Issue                                    
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