This is consistent with nios2-linux. And resolved the warning,
cmd_nvedit.c: In function `do_env_export':
cmd_nvedit.c:660: warning: size_t format, ssize_t arg (arg 3)
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
 typedef unsigned short __kernel_uid_t;
 typedef unsigned short __kernel_gid_t;
 typedef unsigned long  __kernel_size_t;
-typedef int            __kernel_ssize_t;
+typedef long           __kernel_ssize_t;
 typedef int            __kernel_ptrdiff_t;
 typedef long           __kernel_time_t;
 typedef long           __kernel_suseconds_t;