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Pbtomake XCode proj -> Makefile
This program is used to convert an XCode project to a standard makefile. It has options that allow you to specify special options on compile and link. Once an XCode project is built with all files in project relative mode when run on the project it will produce a makefile that can be used in Linux or other UNIX systems.
Note: The pbtomake program was done before XCode when it was called ProjectBuilder