module x
implicit none
contains
subroutine control(f)
interface
subroutine f()
end subroutine f
end interface
call f
end subroutine control
end module x
module x
implicit none
contains
subroutine control(f)
interface
subroutine f()
end subroutine f
end interface
call f
end subroutine control
end module x