Has anyone encountered, or hazard a guess at the purpose of, the #define __P I found in a header file:

#undef __P
#define    __P(protos)    protos

... 
// all functions defined as
char *func __P((int *, int *, int *));

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In reply to [OT] C preprocessor help - trying to build an XS module. by BrowserUk

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