Installing motionsearch.h?

Hi -

	The header file motionsearch.h (from the utils/ directory) is not
	being installed since it is listed in the 'noinst_HEADERS' section
	of Makefile.am

	This is causing a problem (at least on some systems) when programs use
	the motionsearch routines from libmjpegutils. Referencing the 
	pointers to functions such as 'psumsq', 'psad_00', 'pbsumsq', ...
	means that the prototypes:

	extern int (*psumsq) (uint8_t *blk1, uint8_t *blk2, ...

		...

	must be in scope.   Otherwise, on some systems, the program will 
	crash when they jump off to an illegal location (felt like the 
	compiler thought it was a simple function - not a pointer to a
	function - and didn't do the extra indirection).

	I think that since the motion search functions (and pointers)  are in 
	the mjpegutils library that their prototypes should be available.

	Any objection(s) to installing motionsearch.h into the 
	.../include/mjpegtools/ directory?

	Cheers,
	Steven Schultz


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