stdarg.h uclibc lib/libc/include link..

使用ipc的message queue，include stdarg.h
stdarg.h include < machine/stdard.h >

include path是 uClinux-dist/lib/libc/

所以include path下要有machine 目錄。
這個目錄在make時才會產生。

make時會產生asm -> linux/include/asm
linux -> linux/include/linux
machine ->m68k