gtk.ffi: stop using find-library.
gtk.ffi: stop using find-library.

mrjbq7/factor,nicolas-p/factor,AlexIljin/factor,tgunr/factor,bpollack/factor,bjourne/factor,bpollack/factor,tgunr/factor,factor/factor,tgunr/factor,tgunr/factor,bpollack/factor,nicolas-p/factor,bpollack/factor,bjourne/factor,factor/factor,bjourne/factor,nicolas-p/factor,AlexIljin/factor,nicolas-p/factor,bjourne/factor,bpollack/factor,AlexIljin/factor,nicolas-p/factor,bpollack/factor,bjourne/factor,AlexIljin/factor,mrjbq7/factor,bjourne/factor,nicolas-p/factor,factor/factor,AlexIljin/factor,mrjbq7/factor,bjourne/factor,bpollack/factor,factor/factor,mrjbq7/factor,tgunr/factor,factor/factor,mrjbq7/factor,AlexIljin/factor,mrjbq7/factor,factor/factor,AlexIljin/factor,nicolas-p/factor,tgunr/factor