[CMake] including other Makefiles into CMake-generated makefile

[Michael Reed]

I'm trying to use a library/middleware called ACE, and it has it's own, 
complex Makefiles.  Normally, these are just included in a standard 
Makefile like so:

include $(ACE_ROOT)/include/makeinclude/wrapper_macros.GNU
include $(ACE_ROOT)/include/makeinclude/macros.GNU
include $(ACE_ROOT)/include/makeinclude/rules.common.GNU
include $(ACE_ROOT)/include/makeinclude/rules.nonested.GNU
include $(ACE_ROOT)/include/makeinclude/rules.bin.GNU
include $(ACE_ROOT)/include/makeinclude/rules.local.GNU

I'd rather not modify by hand the Makefiles that CMake generates.  Is 
there a "CMake way" of including these Makefiles in a CMake-generated 
Makefile?

Thanks,
Mike