- hooks load the _stack files of every directory between the stack path root
and the stack, outermost first: make included both $(dir)/*.mk and
$(dir)/*/*.mk, so a stack in a subdirectory saw its parent's settings
- a group may be declared in <group>/<group>.env, where the stack lives
- MYOS_STACK_DIR lets a hook read a file it ships next to itself
- myos_filter no longer confuses a literal * in a make pattern with a wildcard,
and the list helpers no longer let the shell expand a * into filenames
- MACHINE, SYSTEM, HOST and DOMAINNAME join the framework variables a hook sees
- the make shim gains $(call myos-var,NAME), so a .mk target can read a
setting that now lives in a hook, and it picks up the .mk of every stack
directory rather than only the project's
Yann Autissier
084a25c627