> eg++: error: unrecognized command line option '-fconstexpr-steps=2000000'; did you mean '-fconstexpr-depth='?
> gmake: *** [build/main.mk:500: derived/sparc-openbsd-opt/obj/Autofire.cc.o] Error 1
main.mk looks at CXX to decide whether it is clang or gcc, which does
not work since we (always?) pass CXX=c++ which is then the usual symlink
in ${WRKDIR}/bin/ to CHOSEN_COMPILER.
Pass our choice and use that to decide.
Builds/packages fine on amd64 and sparc64.
Zap default python version while here.
OK sthen