The older version didn't check for this error.
You are calling a procedure that accepts another procedure as an argument. The declaration of the dummy argument procedure doesn't match that of the procedure you are passing.
For example, if I have this:
[fortran]
program test
interface
subroutine myproc(a)
integer a
end subroutine myproc
end interface
call callit(myproc)
contains
subroutine callit (proc)
interface
subroutine proc (a)
real a
end subroutine proc
end interface
end subroutine callit
end program test
[/fortran]
you would get the error:
t.f90(7): error #7061: The characteristics of dummy argument 1 of the associated actual procedure differ from the characteristics of dummy argument 1 of the dummy procedure. (12.2) [MYPROC]
call callit(myproc)
------------^
The "12.2" is a reference to a section of the Fortran standard, but probably Fortran 90. We should remove that part of the message. But do note that the message that comes out has more information than what you typed into your post.
