Removed the broken --enable-canvas-pixbuf option. Added the stuff

Removed the broken --enable-canvas-pixbuf option. Added the stuff

2000-01-16  Federico Mena Quintero  <federico@helixcode.com>

	* configure.in: Removed the broken --enable-canvas-pixbuf option.
	Added the stuff necessary to substitute the variables in
	gnomecanvaspixbufConf.sh.in.

	* gnomecanvaspixbufConf.sh.in: New gnome-config handler for the
	tiny gnomecanvaspixbuf library.

	* Makefile.am: Build gnomecanvaspixbufConf.sh.

	* gdk-pixbuf/Makefile.am: Create a libgnomecanvaspixbuf and only
	build it if gdk-pixbuf is being built outside of gnome-libs.

	* doc/gdk-pixbuf-sections.txt: Added gdk_pixbuf_render_pixmap_and_mask().

	* gdk-pixbuf/gdk-pixbuf-render.c
	(gdk_pixbuf_render_pixmap_and_mask): Renamed from
	gdk_pixbuf_render_pixmap().  Do not create the mask if it is not
	needed, and do not use a clipping mask when rendering the pixmap.
	Tweaked documentation a little.

	* HACKING: New file with hacking policies for the gdk-pixbuf
	module.

	* doc/Makefile.am (tmpl_sources): Added missing backslash.

	* doc/Makefile.am: Use gnomecanvaspixbuf in gnome-config when
	scanning for docstrings.

	* gdk-pixbuf/gdk-pixbuf-util.c (gdk_pixbuf_copy_area): Made sanity
	checks more stringent.  Removed "gint" abominations.  Made
	documentation consistent with the rest of the functions.

	* doc/gdk-pixbuf-sections.txt: Added gdk_pixbuf_copy_area() to the
	utilities section.