RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 32533127584b6bf98754591a168b5f2962d02ee1

Meco Man 3253312758 remove difftime()		há 4 anos atrás
..
sys	598aa86f75 move clock_time_to_tick to time.c	há 5 anos atrás
SConscript	b2d3317c6a remove minilibc	há 5 anos atrás
readme.md	bf7a3af6fd update readme	há 5 anos atrás
stdlib.c	2b98ac215a [kernel] rearrange rt_thread_control() - schedule the thread when close it	há 5 anos atrás
termios.h	54143409ca 增加#include <rtconfig.h> 防止开启termios功能后报错	há 5 anos atrás
time.c	3253312758 remove difftime()	há 4 anos atrás
unistd.c	19c8cab8bd update	há 5 anos atrás

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'])
```