We use a tool to detect 138 dependence issues in the Makefile. Most of them are missing of c source files and header files. 

Those issues can cause incorrect results when we want to do incremental build and parallel build.

For example, any changes in "Include/typeslots.h" will not cause "Modules/atexitmodule.o" to be rebuilt, which is incorrect.

I've fixed all of them in the github PR:
https://github.com/python/cpython/pull/14758

I've tested it on my computer and the fixed version works as expected.