diff -up mariadb-5.5.29/storage/myisam/myisamchk.c.sortbuffer mariadb-5.5.29/storage/myisam/myisamchk.c
--- mariadb-5.5.29/storage/myisam/myisamchk.c.sortbuffer	2013-02-27 16:46:02.258855014 +0100
+++ mariadb-5.5.29/storage/myisam/myisamchk.c	2013-02-27 16:46:23.456854430 +0100
@@ -294,13 +294,13 @@ static struct my_option my_long_options[
   { "sort_buffer_size", OPT_SORT_BUFFER_SIZE,
     "Deprecated. myisam_sort_buffer_size alias is being used",
     &check_param.sort_buffer_length,
-    &check_param.sort_buffer_length, 0, GET_ULL, REQUIRED_ARG,
+    &check_param.sort_buffer_length, 0, GET_ULONG, REQUIRED_ARG,
     (long) SORT_BUFFER_INIT, (long) (MIN_SORT_BUFFER + MALLOC_OVERHEAD),
     SIZE_T_MAX, (long) MALLOC_OVERHEAD, (long) 1L, 0},
   { "myisam_sort_buffer_size", OPT_SORT_BUFFER_SIZE, 
     "Alias of sort_buffer_size parameter",
     &check_param.sort_buffer_length,
-    &check_param.sort_buffer_length, 0, GET_ULL, REQUIRED_ARG,
+    &check_param.sort_buffer_length, 0, GET_ULONG, REQUIRED_ARG,
     (long) SORT_BUFFER_INIT, (long) (MIN_SORT_BUFFER + MALLOC_OVERHEAD),
     SIZE_T_MAX, (long) MALLOC_OVERHEAD, (long) 1L, 0},
   { "sort_key_blocks", OPT_SORT_KEY_BLOCKS, "",