The macro MPM_REGISTER_COMPONENT did not work as described: in case
the default enable was set to ON and all dependencies were met, the
module was still not enabled.
Also made the status prints more helpful:
- print the default value,
- print the user override (if one was provided)
- print the resulting VAR = VALUE
- print the override hint only if the user did not
already specify an override
Example of old incorrect behavior:
-- Configuring Mykonos support...
-- Dependency ENABLE_LIBMPM = ON
-- Disabling Mykonos support.
-- Override with -DENABLE_MYKONOS=ON/OFF
Example of new correct behavior (also with changed prints):
-- Configuring Mykonos support...
-- Default value ENABLE_MYKONOS = ON
-- Dependency ENABLE_LIBMPM = ON
-- Enabling Mykonos support (ENABLE_MYKONOS = ON)
-- Override with -DENABLE_MYKONOS=ON/OFF
Added cmake variable to set the component (currently UHD or MPM).
so the banner printed by the log_resource would reference the correct
component. Added accessor function and appropriate calls in log.cpp.
Signed-off-by: michael-west <michael.west@ettus.com>