Bug#1073304: firmware-microbit-micropython: FTBFS: cc1plus: error: '-fcf-protection=full' is not supported for this target

[Petter Reinholdtsen]

I was recommended that updating debian/rules with hardening=-branch
could help, ie like this:

  export DEB_BUILD_MAINT_OPTIONS = hardening=-branch

But it only triggered other build problems.  I also tried with

  export DEB_BUILD_MAINT_OPTIONS = hardening=-all

I suspect the best solution is to not use flags from dpkg-buildflags at all.

-- 
Happy hacking
Petter Reinholdtsen