dependency tracking in ld

dependency tracking in ld

ld/:
	* Makefile.am (AUTOMAKE_OPTIONS): Remove cygnus.  Add
	no-texinfo.tex, no-dist, foreign.
	(TEXINFO_TEX): New variable.
	(install-data-local): Removed, not needed any more.
	(all): Dependencies upon info and ld.1 not needed any more.
	(MKDEP, DEP, DEP1, dep.sed, dep, dep-in, dep-am): Removed.
	(mkdep generated section): Removed.
	(ldgram.o, ldlex.o, deffilep.o, ldmain.o, ldfile.o): Rewrite to
	use automake dependency tracking mechanism.
	(EXTRA_ld_new_SOURCES): Add pep-dll.c, pe-dll.c, and
	$(ALL_EMULATIONS:.o=.c) $(ALL_64_EMULATIONS:.o=.c) so their
	dependencies are tracked too.
	(BUILT_SOURCES): New, list $(GENERATED_HFILES) to ensure they
	are built early.
	* configure.in: Use AM_MAINTAINER_MODE.
	* configure, Makefile.in: Regenerate.