RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 5fc59f88c1b4b145a6deeea5cd0af459e56fc4b6

Meco Man 5fc59f88c1 update		vor 5 Jahren
..
sys	5fc59f88c1 update	vor 5 Jahren
SConscript	b3ab8a99e1 Signed-off-by: mysterywolf	vor 5 Jahren
readme.md	d5f8830177 add newlib/dlib readme	vor 5 Jahren
termios.h	54143409ca 增加#include <rtconfig.h> 防止开启termios功能后报错	vor 5 Jahren
time.c	ac500f35d6 change RT_USING_PTHREADS to RT_USING_POSIX	vor 5 Jahren
unistd.c	fa8e8ed31f add RTM_EXPORT label for unistd.c	vor 5 Jahren

Attentions

This folder is "common" for armlibc newlibc and dlib. It's not "common" for minilibc.
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'])
```