imsg-compat 7.4.0

sync sources to latest, thanks to @omar-polo ❤️

also try to use POSIX make to appease the gods \o/

imsg-compat 6.8.2

updated sources from openbsd
added new pkgconfig file libimsg.pc

imsg-compat 6.8.1

fix super tiny typo in man page

imsg-compat 6.8.0

first release!