Copying a file after each subdirectory build

[Russell Shaw]

Hi,
I have lots of libraries and programs in separate directories, each
with its own configure.ac and Makefile.am.

What can i put into Makefile.am so that after each library is built,
it will copy its header file and object file to another directory in
the project tree?

I want all the library headers in a header directory and library objects
in an objects directory, in the same layout that they will be installed
on the host system. I also want the rest of the programs in the project
to be linked to them during the project "make".