This Patch fixes:
* Fix mjpegtool's #include <SDL/SDL.h>
http://www.libsdl.org/faq.php?action=listentries&category=2#19
Conforming to libsdl's recommendation fixes a compile failure in some build
scenarios too interesting for me to explain them. Please accept this patch
as an improvement to your buildsystem :-).
* Insert SDL_CFLAGS into Makefile.am
fixes compile errors for portage-multilib reported on 2010/03/03 by xming
