with structuredAttrs lists will be bash arrays which cannot be exported
which will be a issue with some patches and some wrappers like cc-wrapper
this makes it clearer that NIX_CFLAGS_COMPILE must be a string as lists
in env cause a eval failure
checkInputs used to be added to nativeBuildInputs. Now we have
nativeCheckInputs to do that instead. Doing this treewide change allows
to keep hashes identical to before the introduction of
nativeCheckInputs.
QEMU 3.1 already had support for building with python3, so this should
be a change that doesn't have any effect on the produced binaries.
Python2 removal tracking issue: https://github.com/NixOS/nixpkgs/issues/148779
i don't think running the unit tests really adds anything given that we
have proper integration tests working, and it just introduces another
build dependency and possibility for spurious breakage.
