check-local for different versions

Hello,

I am using automake (version 1.9).

A part of our project can be configured in two different ways, by
modifying macro definitions in a header file. We would like to test the
two versions.

Writing this to the Makefile.am of that subproject:

check-local:
	<commands that modify the header file>
	make check

would lead to infinite recursion (target `check' calls target
`check-local', etc.).

Any idea how to do this?

-- dave