For example,
If I modify only the registrar module,
I thought the steps were:

1. make modules=modules\registrar modules
2. copy the registrar.so to the installed path

And when starting kamailio I got the error message below:

ERROR: <core> [sr_module.c:417]: 
version_control(): ERROR: module compile flags mismatch for  [my installed path]/registrar.so 

I've searched for the answer and it seems to need to re-build and re-install kamailio and all the module again...

Is there more efficient way for just updating the specified module  ??

Thanks a lot.:)