Description of Problem:

1. After changing CFLAGS in CDL files and manually running 'ecosconfig tree' to
regenerate makefiles (cf. bug #58055), object files affected by the change in
CFLAGS are not recompiled.

Object files should be rebuilt when the CFLAGS change, or at least when the
makefile is changed.

2. In an attempt to work around the above bug, the object files were removed, to
ensure that they got rebuilt. Even this did not actually cause them to be
rebuilt, though - the .o files seem to be only a side-effect of the creation of
the .o.d files.