Brian S wrote: > SVanVoorst wrote: > >> Please excuse my ignorance, but if FB has some QuickDraw code and Lion took away the headers, how does it even run in 10.7? > FB only needs the QuickDraw headers for linking and since we link against 10.5 libraries the QuickDraw headers are there. The headers ( .h files ) are missing in Lion. To be pedantic, headers are used in compilation only. Linking is a later step. In Lion, unless you smuggle in an old Xcode 3 developer folder, every app that FB makes is built against /Developer/SDKs/MacOSX10.6.sdk. This SDK contains full QuickDraw headers. > Execution is a different matter. The QuickDraw framework( which is separate and different from the headers ) DOES exist in Lion, so therefore execution works. Again to be pedantic, the headers exist inside the framework, along with the executable library code. Robert P.