Lazarus/Free Pascal includes its own sources, and takes about 3 minutes to rebuild everything, if I recall correctly. It's single pass recursive descent compil

Lazarus/Free Pascal includes its own sources, and takes about 3 minutes to rebuild everything, if I recall correctly. It's single pass recursive descent compiler, with no macros. It doesn't have separate header files, and auto-manages dependencies, so there isn't a need for make. Units get compiled once, no matter how often they are used.