CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.9.1 2017-03-12T19:28:45+00:00 2017-03-12T19:28:45+00:00 Paul Sokolovsky pfalcon@users.sourceforge.net 2017-03-12T19:28:45+00:00 urn:sha1:736a8a8ac7abfeab5edb8dfd73ecf0b2c0282e61 This is a typical problem with make: we want to trigger rebuilds only if file actually changed, not if its timestamp changed. In this case, it's aggravated by the fact that prj.conf depends on the value of BOARD variable, so we need to do some tricks anyway. We still don't try to detect if just BOARD changed, just try to generate new prj.conf.tmp every time (quick), but do actual replacement of prj.conf only if its content changed.