Upstream autotools configuration to buildstream-plugins (or use the upstream one if It's possible to do buildir != srcdir)
Currently we define quite a lot of common stuff at https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/blob/master/include/_private/autotools-conf.yml
Most of the stuff there are considered good practices nowadays, so we can probably upstream them to https://gitlab.com/freedesktop-sdk/freedesktop-sdk/-/blob/master/include/_private/autotools-conf.yml , so ideally we only have to set the variables we need (maybe none would be needed)
Edited by Javier Jardón