Don't fail compiling dokeysto by using a newer extunix
Don't fail compiling dokeysto by using a newer extunix

With extunix.0.1.1 if fails with dozens of messages like

gcc: error: src/eventfd.o: No such file or directory

ocaml/opam-repository,djs55/opam-repository,ocaml/opam-repository,djs55/opam-repository,astrada/opam-repository,pirbo/opam-repository,nberth/opam-repository,kkirstein/opam-repository,Leonidas-from-XIV/opam-repository,pqwy/opam-repository,codinuum/opam-repository,fpottier/opam-repository,jhwoodyatt/opam-repository,pqwy/opam-repository,kkirstein/opam-repository,hannesm/opam-repository,Leonidas-from-XIV/opam-repository,emillon/opam-repository,nberth/opam-repository,astrada/opam-repository,pirbo/opam-repository,codinuum/opam-repository,hannesm/opam-repository,fpottier/opam-repository,emillon/opam-repository,jhwoodyatt/opam-repository