d5ef3c3ecb
Added -std=c++20 to enable std::atomic_flag::test which was introduced in gcc 11.1: https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2020 (see P1135R6) For older compilers -DNO_STD_LIB=1 can be used to enable a code path without std::atomic_flag::test, copied from: https://github.com/DragonFlyBSD/DeltaPorts/commit/cfc388e6a6bf011e28f0cbebaeae74d2bb516a02 Signed-off-by: Bernd Kuhls <bernd@kuhls.net> Signed-off-by: Julien Olivain <ju.o@free.fr>