RT-Thread/rt-thread: KM https://github.com/RT-Thread/rt-thread.git @ bf7a3af6fd8e1012cc0e07ecfde059956c2f75c9

Meco Man bf7a3af6fd update readme		5 rokov pred
..
sys	598aa86f75 move clock_time_to_tick to time.c	5 rokov pred
SConscript	e927a53b41 精简exit abort system函数	5 rokov pred
readme.md	bf7a3af6fd update readme	5 rokov pred
stdlib.c	eaa3454bbe 优化abort函数	5 rokov pred
termios.h	54143409ca 增加#include <rtconfig.h> 防止开启termios功能后报错	5 rokov pred
time.c	598aa86f75 move clock_time_to_tick to time.c	5 rokov pred
unistd.c	fa8e8ed31f add RTM_EXPORT label for unistd.c	5 rokov pred

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'])
```