Most of the incompatitbilities are luckily similar to the darwin build.
- New target OS __PX4_CYGWIN added because in other build environments on Windows defines will very likely be completely different
- added all necessary exeptions to the defines
- disabled priorities completely because on Windows they are defined 1-32 and with all the arbitrary +40 -40 priority settings there were a lot of problems
not only did some threads/"virtual tasks" not start because of out of bound priorities but also the resulting scheduling was totally random and inadequate
with default priorities it ran toally fine during my first tests, should be rethought when windows is used onboard in the future
* For some reason cppcheck complains with `fp != nullptr` but accepts truthiness
of handle by itself.
* Note that the expressions are equivalent according to the C++ standard ("A
prvalue of arithmetic, unscoped enumeration, pointer, or pointer to member
type can be converted to a prvalue of type bool. A zero value, null pointer
value, or null member pointer value is converted to false; any other value is
converted to true. A prvalue of type std::nullptr_t can be converted to a
prvalue of type bool; the resulting value is false.")
The packet_count was actually an error_count, therefore we should
process RC input only when the error_count since the last packet is 0.
Also, this commit fixes the RSSI scaling for st24.
It makes more sense to set the optimization flags on a platform basis
instead of individually for each module. This allows for different
optimization options for SITL, NuttX, Snapdragon, etc.
* Low impact changes from path_cleanup branch.
This is a step towards minimizing the diff with path_cleanup branch.
* Update ecl.
* Revert matrix update.
* Revert ecl and matrix.
* Update sitl gazebo.
* Revert sitl_gazebo and matrix changes.