SUBDIRs and alternate names for "Makefile"

[Harlan Stenn]

I have an automake/autoconf application where the auto* generated stuff  has 
to co-exist with a different "make" application, and cannot use [Mm]akefile
for the names of the generated targets.

I have a solution for this for the "flat" case, but I now have to do a
SUBDIR case, too.

In the main subdirectory I generate and use Makefile.boot for the bootstrap
case (the one which uses automake/autoconf).

I figure I can "subvert" the problem by using fake targets to generate the
builds in the subdirectories using "cd foo && $(MAKE) -f Makefile.boot", but 
is there a better way?

H