This is a test version of "nations.c". Rename the proper "nations.c" to something else, rename the attached file as "nations.c", then either start a new game as a Spanish privateer or load a savegame. Go to the tavern, stand in front of the tavern keeper, then save game again. (I still have your savegames from the experiments with marriage, so I started with one of those. )
This version of "nations.c" has all the randomness removed. As in a previous experiment, it's set to force a relation change every day. There's a line to set variables i and j to specific nations, and another to set their starting relation. All the random choices of relation change are now fixed. You can therefore edit the file to choose nations and check whichever relation change you want. It's currently set to use Spain and Holland, relation initially neutral, then Spain will declare war on Holland.
It also has some 'traceandlog' statements to show what is going on.
This version of "nations.c" has all the randomness removed. As in a previous experiment, it's set to force a relation change every day. There's a line to set variables i and j to specific nations, and another to set their starting relation. All the random choices of relation change are now fixed. You can therefore edit the file to choose nations and check whichever relation change you want. It's currently set to use Spain and Holland, relation initially neutral, then Spain will declare war on Holland.
It also has some 'traceandlog' statements to show what is going on.