#include <stdio.h>
#include <string.h>
#define VERSION "101"
// This function is not available for linking
int unknown_function();
// This one is in standard library
int main(void) {
	int x;
      // code if VERSION is at least "101"
    } else {
      // code if VERSION is "100" or less
      x = unknown_function();
    }
	return 0;
}
 
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