gdb

gdb
	* configure: Rebuild.
	* configure.ac (READLINE_TEXI_INCFLAG): New subst.
gdb/doc
	* gdb.texinfo (Top): Check SYSTEM_READLINE.
	(Editing): Likewise.
	(Command History): Likewise.
	(TUI Keys): Likewise.
	(Bug Reporting): Conditionally include rluser.texi and
	inc-history.texinfo.
	* Makefile.in (READLINE_TEXI_INCFLAG): New variable.
	(GDB_DOC_SOURCE_INCLUDES): Add comment.
	(GDBvn.texi): Set SYSTEM_READLINE when appropriate.
	(gdb.dvi): Use READLINE_TEXI_INCFLAG.
	(gdb.pdf): Likewise.
	(gdb.info): Likewise.
	(gdb/index.html): Likewise.