Workaround for broken large file support on HP-UX

Author: petere

src/include/port/hpux.h

@@ -15,5 +15,9 @@ typedef struct
 #endif
 #ifndef			BYTE_ORDER
 #define			BYTE_ORDER		BIG_ENDIAN
+#endif
 
+/* workaround for nonstandard large file support implementation */
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64
+#define _LARGEFILE64_SOURCE 1
 #endif