Include sys/timeout.h to make if_gre.c compile without pf. No binary change.  OK henning@
Include sys/timeout.h to make if_gre.c compile without pf.
No binary change.  OK henning@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars