How to specify a library as dependecy to a executable

[ittium]

Group,
I have a Makefile.am which is building a executable. This executable
depends on certain libraries. I want to put these libraries as dependencies
to the executable so that when library got build, executable is also built
(if build from top level dir), I have many tried some option from net e.g
specifying "LIBRARY=" variable, none is working. Please let me know, how to
do this.
thanks
Ittium