If I am not misunderstanding the PR and changes in some cmake-files, the internal libs are still compiled as libraries (.so files).
The target is to have them compiled as part of the core, so there will be just kamailio binary and no .so files other than the modules. In other words, the `.c` and `.h` files in the `src/lib/.../` are part of the core and, as an example. should be compiled into `kamailio` in the same way `src/core/mem/*.{c,h}` are compiled.
With the old-Makefiles, once I did the changes for #4041 , the core files are including the internal lib files, see:
- https://github.com/kamailio/kamailio/blob/master/src/Makefile.sources#L13-L2...