Index: rbutil/sansapatcher/sansaio-posix.c
===================================================================
--- rbutil/sansapatcher/sansaio-posix.c (revision 13330)
+++ rbutil/sansapatcher/sansaio-posix.c (working copy)
@@ -16,6 +16,9 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
+#if defined(linux) || defined(__linux)
+#define _LARGEFILE64_SOURCE
+#endif

 #include <stdio.h>
 #include <unistd.h>