Use of Make in OpenWrt

Make command Simple description
Make v=99
v=99 indicates output verbose debug information

Make World
Represents compiling all

Make j=2 v=99
As Multicore CPUs, the plus j=2 option can theoretically speed up compilation
Make-j 2 v=99 to speed up compilation (deprecated)

Clear only one module
Make Package/qos/clean

Compile only one module
Make Package/qos/clean
Make Package/qos/compile
Make Package/qos/install

Make v=99 | Tee Compile_v1.0.0.log
The Hybrid Tee command places the compilation information in the Compile_v1.0.0.log file for easy viewing.

Use of Make in OpenWrt