(svn r8605) -Codechange: [OSX] changed all objective C to objective C++ This will permanently solve the issue where compilation on OSX broke because C++ code was added to some header files -Note: (important if you develop mac specific code) taken from http://developer.apple.com/releasenotes/Cocoa/Objective-C++.html gdb lacks an integrated C++ with Objective-C parser. This means that gdb won't be able to evaluate expressions that contain both C++ and Objective-C constructs. gdb assumes that the language for ".mm" files is C++. you can change it to objective C by typing: (gdb) set language objc Mixing C++ and objective C has some limitation (see link for all of them)