#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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