building mod

In Civ4, multipliers are additive unless a change in DLL is made. For example, cities with both Library and University will get 150%(100% + 25% + 25%) the base amount of science, not 156.25%(100% * 125% * 125%). Which part of the code do I have to change?

Hi,everyone,I've got the issue for hours and havn't solved yet. Like the title,if I don't add the buildings.xml into action,it'll be ok.But when I add some new buildings, things went bad. I have taken sevral hours to discover what problem was, but I don't get the idea yet. Now the situation is...

Overhauls district buildings in the game to provide bonuses in addition to base building yields. *Base building yield from Library/University/Madrasa/Research Lab lowered to 1/2/3/3 Science respectively. * Libraries increase Science yield of all Rainforests and Woods in their city by 1. *...