Right, maybe I was overexcited to find out what was *really* happening. So the process:
1.- I start my make and everything goes smoothly until the message with the autorevert-tests appears and stays there for some time
2.- At this point I open a second terminal and use 'ps -ef' to see what is really happen.
3.- There I see that make is stuck in the shadowfile-tests
4.- I examine the log file and disconver that it is waiting on the message
"Autosave file on local temporary directory, do you want to continue? (yes or no"
5.- I go back to the terminal where make is running and type 'yes<Enter>' and the make process finishes correctly.
From this I fear that the shadowfile-tests need some interaction which is not compatible with an automated make process