fix compilation error not finding readlink() with gcc 4.9 on Linux
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@ -6,6 +6,7 @@
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#include <stdlib.h> /* exit(), srand() */
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#include <stdlib.h> /* exit(), srand() */
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#include <iostream>
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#include <iostream>
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#include <string>
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#include <string>
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#include <unistd.h>
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using namespace std;
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using namespace std;
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static void usage();
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static void usage();
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