All in one repository or many repositories ?

[Pachounet]

Hi,

We have a library L shared between projects A B and C.

New user to CVS, we are wondering wether it is better to

1- Have L, A, B and C in a unique repository ?
(so they would be each one a branch from a commun trunk).

2- Have L, A, B, and C in 4 repositories ?

3- Have LA, LB, LC in three repositories ?

Thanks,