Antoine Pitrou <report@bugs.python.org> wrote:
> Why is OPT duplicated in get_config_vars(...)?

I missed that, thanks.

> Why do OPT and BASECFLAGS environ vars override their Makefile values
> instead of accumulating with them?

I think it would go too far to append in three places. If the environment
CFLAGS go to the end, everything can be overridden with a single variable.

> Why is EXTRA_CFLAGS not configurable through environ?

I don't know. Ideally the Debian people would comment if they had any
reasons for that. For me it would be sufficient if CFLAGS were configurable
without deleting OPT, BASECFLAGS or EXTRA_CFLAGS.