You can report an error from the beginning!
I could not find X11 or any software. In fact, I simply searched manually before!
In fact, I should not manually find these, but according to its error report, directly to the corresponding cmake, find the corresponding path to modify!
Cmake is mainly the header file. H and its path location, as well as the path of some library files.
To sum up the problem, we need to learn more about the functions of CMake, such as cross-compiling.
 
 
On general application in findpackage is https://blog.csdn.net/chengde6896383/article/details/86497016;
Go to the corresponding nodule for the corresponding findxxx.cmake file to solve the problem.