* dep-in.sed: Don't modify .o to .lo here. Output one filename

	* dep-in.sed: Don't modify .o to .lo here.  Output one filename
	per line with all lines having continuation backslash.  Prefix
	first line with "A", following lines with "B".
	* Makefile.am (DEP): Don't use dep.sed here.
	(DEP1): Run $MKDEP on single files, modify .o to .lo here.  Use
	dep.sed here on dependencies, sort and uniq.
	* Makefile.in: Regenerate.