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arm-linux-gnueabi-cpp(1) -traditional-cpp
The C Preprocessor
    Try to imitate the behavior of old-fashioned C preprocessors, as opposed to ISO C preprocessors.


Having said that, you can often get away with using cpp on things which are not C. Other Algol-ish programming languages are often safe (Pascal, Ada, etc.) So is assembly, with caution. -traditional-cpp mode preserves more white space, and is otherwise more permissive. Many of the problems can be avoided by writing C or C++ style comments instead of native language comments, and keeping macros simple.

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