CC build\kernel\src\idle.o C:\Users\TAARIMI7\Downloads\f1c100s\rt-thread\src\idle.c:43:33: error: 'RT_CPUS_NR' undeclared here (not in a function ) 43 | #define _CPUS_NR RT_CPUS_NR | ^~~~ C:\Users\TAARIMI7\Downloads\f1c100s\rt-thread\src\idle.c:48:37: note: in expa...