An almost-ANSI C preprocessor by Martin Minow. It is shipped with X11R5
(contrib/util/cpp) because some systems don't have a working cpp.
It runs on VMS (Vax C, Decus C), RSX-11M, RSTS/E, P/OS, RT11, A/UX and Apollo
Domain/IX 9.6 and is highly portable.
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