2004-07-20  Sven Neumann  <sven@gimp.org>

	* plug-ins/MapObject/Makefile.am (MapObject_SOURCES): added back
	arcball.h.

	* plug-ins/MapObject/mapobject_main.c
	* plug-ins/MapObject/mapobject_preview.c: no need to include
	arcball.h here.