extern "C" {
#endif
+#include <features.h>
#include <unistd.h>
ssize_t sendfile(int, int, off_t *, size_t);
-#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
+#if defined(_LARGEFILE64_SOURCE)
#define sendfile64 sendfile
#define off64_t off_t
#endif