COMMON_FLAGS="-O2 -pipe -mcpu=cortex-a72 -ftree-vectorize -fomit-frame-pointer" RUSTFLAGS="-C target_cpu=cortex-a72 -C opt-level=3 -C debuginfo=0" VIDEO_CARDS="v3d vc4" # not supported by qemu-user FEATURES="${FEATURES} -ipc-sandbox -pid-sandbox -network-sandbox" USE="${USE}"