third party libaries

[Johannes Drever]

Hello everyone!

what is the best way to add the dependency on third party libaries to my 
project? The project has many "subproject" which i want to able to build 
seperately, and each "subproject" depends on other third party libraries.

i am totaly unsure where to put the dependencies, so i would be glad to 
have some advice, or example, or a good tutorial to look at.

Thanks,

Johannes