NAME
	SumLibrary -- compute and check the checksum on a library

   SYNOPSIS
	SumLibrary(library)
		   A1

	void SumLibrary(struct Library *);

   FUNCTION
	SumLibrary computes a new checksum on a library.  It can also be
	used to check an old checksum.	If an old checksum does not match,
	and the library has not been marked as changed, then the system
	will call Alert().

	This call could also be periodically made by some future
	system-checking task.

   INPUTS
	library - a pointer to the library to be changed

   NOTE
	An alert will occur if the checksum fails.

   SEE ALSO
	SetFunction()