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C51 warning C322: unknown identifier

Robert Wilcox

I am porting some code to 8051 and the existing code uses #define to determine whether or not some functionality is available

i.e. ....

#define HAVE_STRING_H
.
.
.
.

#ifndef HAVE_STRING_H
#include <string.H
#else
#include <homegrown/string.h>
#endif
Any suggestions on how I can suppress or correct C322?

Obviously, I can change
#define HAVE_STRING_H
to
#define HAVE_STRING_H 1
and then change
#ifdef HAVE_STRING_H
to
#if HAVE_STRING_H
but I am trying to preserve as much of the original code as I can.

Any help is appreciated and thanks in advance.

Robert

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