how to compare permissions between two dirs

[Aryeh M. Friedman]

In switching to a new make file for a personal project I have run into 
the problem of under the old makefile everything works (web site) and 
under the new one it does not... when manually looking at the two dirs 
they appear identical in layout, sizes and perms (dir and file level) 
but I want to make sure... is there any way to compare two diff dirs and 
see if they only differ in date stamps? (note since there are several 
developers working on this project I need to compare even if the owners 
are diff)