RT-Thread/rt-thread: KM https://github.com/RT-Thread/rt-thread.git @ e2d4a912beb77f55b12920ef2402b3e472dc2962

Meco Man 46d51a99f1 优化get_timeval set_timeval 条件编译代码结构		5 éve
..
sys	8e2a456d7a implement set_timeval	5 éve
SConscript	b2d3317c6a remove minilibc	5 éve
readme.md	bf7a3af6fd update readme	5 éve
stdlib.c	3c05a4e719 [compoenets] auto & manual formatted	5 éve
termios.h	3c05a4e719 [compoenets] auto & manual formatted	5 éve
time.c	46d51a99f1 优化get_timeval set_timeval 条件编译代码结构	5 éve
unistd.c	3c05a4e719 [compoenets] auto & manual formatted	5 éve

Attentions

This folder is "common" for armlibc newlibc and dlib.
If you want to add new .c files, please do not forget to fix SConscript file too. eg:
```
if GetDepend('RT_USING_POSIX') == False:
    SrcRemove(src, ['unistd.c'])
```