RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 87c7e890b272f7bd668da2a70f2c8eaa0e77e3e3

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

qiuyiuestc e98032b284 implement sin and cos function		15 lat temu
..
sys	b4a98e4457 Improve the Device File System of the POSIX compatibility	15 lat temu
SConscript	b5fbf220b3 add newlib stub building script.	16 lat temu
math.c	e98032b284 implement sin and cos function	15 lat temu
syscalls.c	b5fbf220b3 add newlib stub building script.	16 lat temu