2003-10-01  Sven Neumann  <sven@gimp.org>

	* app/composite/gimp-composite-altivec.c
	* app/composite/gimp-composite-mmx.c
	* app/composite/gimp-composite-sse.c
	* app/composite/gimp-composite-sse2.c
	* app/composite/gimp-composite-vis.c: moved includes out of the
	#if __GNUC__ >= 3 to make the code compile on other compilers.

	* app/composite/gimp-composite-3dnow.[ch]: added the same stubs here
	for symmetry.