RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 4e66a20fbf9824dd01331e9f381de97f658969c5

Meco Man d9abe8fa30 修复在simulator win32平台下，nonegcc文件夹路径没有添加到工程的bug		4 lat temu
..
none-gcc	d9abe8fa30 修复在simulator win32平台下，nonegcc文件夹路径没有添加到工程的bug	4 lat temu
sys	1a55702ccb 修复DST_NONE 等宏定义位置放错导致报错的问题	4 lat temu
SConscript	d9abe8fa30 修复在simulator win32平台下，nonegcc文件夹路径没有添加到工程的bug	4 lat temu
dirent.h	f9ba41f4c2 更改libc目录为common 以及 none-gcc	4 lat temu
readme.md	f9ba41f4c2 更改libc目录为common 以及 none-gcc	4 lat temu
stdlib.c	3c05a4e719 [compoenets] auto & manual formatted	4 lat temu
termios.h	3c05a4e719 [compoenets] auto & manual formatted	4 lat temu
time.c	8fee8d2c8c remove const in set_timeval	4 lat temu
unistd.c	19347ed454 [libc][unistd] 完善isatty()	4 lat temu

Attentions

This folder is "common" for all toolchains.
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'])
```