RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ bc6e8c544a4266c4d8c0f5bf8d3d239679ff055f

zrkadlo https://github-proxy.rt-thread.io/RT-Thread/rt-thread.git

qiuyiuestc 5f838f86aa add libdl and extension examples		15 rokov pred
..
SConscript	5f838f86aa add libdl and extension examples	15 rokov pred
extapp.c	5f838f86aa add libdl and extension examples	15 rokov pred