So, it seems that the complaints (https://news.ycombinator.com/item?id=8024654) and (https://news.ycombinator.com/item?id=8025561) have been partially heard.
It fixes the Pkg-Config complaint, the Werror one, the sys/sysctl.h one, the main() symbol visibility issue and the infamous signature for the release :)
It seems they're listening.