> i guess you answered that yourself. does p9p run on Plan 9?

There a plenty of programs which are made to run under both p9p and plan9.
So, no the question is still open, but I will rephrase it.

Should any program which can run under p9p and plan9 ever be compiled with
g++ or another c++ compilers?  Otherwise is it necessary to check for
__cplusplus?

   EBo --


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