Using FeatherFault with SleepyDog fails to compile

[prototypicalpro]

FeatherFault fails to compile when being used with the Adafruit SleepyDog Library. This issue is caused by both FeatherFault and SleepyDog defining WDT_Handler function, causing a multiple definition error during link time:

C:\Users\User\AppData\Local\Temp\arduino_build_638914\libraries\Adafruit_SleepyDog_Library\utility\WatchdogSAMD.cpp.o: In function `WDT_Handler':

C:\Users\User\Documents\Arduino\libraries\Adafruit_SleepyDog_Library\utility/WatchdogSAMD.cpp:167: multiple definition of `WDT_Handler'

C:\Users\User\AppData\Local\Temp\arduino_build_638914\libraries\FeatherFault\FeatherFault.cpp.o:C:\Users\zackp\OneDrive\Documents\Arduino\libraries\FeatherFault\src/FeatherFault.cpp:148: first defined here

collect2.exe: error: ld returned 1 exit status

FeatherFault needs to be able to respond to the watchdog timer, so removing WDT_Handler is out of the question. The only idea I have to resolve this issue is to implement the FeatherFault watchdog code in terms of the SleepyDog library--resulting in less-than-ideal reliability and another dependency.

For the moment I will mark this as wontfix, though I am open to other solutions.

[kamocat]

We knew about this conflict when we started this library.
The best option is to use something else to time your sleep - the OPEnS RTC works very well.
Another option might be to implement sleep functionality in the FeatherFault library, to replace SleepyDog entirely. I would be open to including a loop counter to allow for a sleep period of several minutes (although the feather would still wake up every 8 seconds to service the watchdog interrupt)