--- a/libexplain/ac/fcntl.h
+++ b/libexplain/ac/fcntl.h
@@ -65,8 +65,14 @@
  * flags values returned by the kernel.
  */
 #if defined(__linux__) && (O_LARGEFILE == 0)
+#if defined(__aarch64__)
+#define O_LARGEFILE_HIDDEN 0400000
+#elif defined(__powerpc64__)
+#define O_LARGEFILE_HIDDEN 0200000
+#else
 #define O_LARGEFILE_HIDDEN 0100000
 #endif
+#endif
 
 
 /*