Add ability to use system libedit and update bundled libedit.

The version of libedit that is bundled with asterisk is old and has some bugs.
This patch updates the bundled version of libedit within asterisk, and also
updates asterisk to use the system libedit instead if one is available (and
pkg-config is available).  This review integrates several patches from other
users specifically kkm and tzafrir.

(closes issue #15929)
Reported by: kkm
Patches:
      015929-astcli-editrc-trunk.240324.diff uploaded by kkm (license 888)

(issue #16858)
Reported by: jw-asterisk

(closes issue #17039)
Reported by: tzafrir
Patches:
      0001-allow-using-system-copy-of-libedit.patch uploaded by tzafrir (license 46)

Review: https://reviewboard.asterisk.org/r/807/


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.8@280019 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 0 insertions, 63 deletions

diff --git a/main/editline/refresh.h b/main/editline/refresh.h
deleted file mode 100644
index 33c0887c1..000000000
--- a/main/editline/refresh.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*	$NetBSD: refresh.h,v 1.4 2001/01/10 07:45:42 jdolecek Exp $	*/
-
-/*-
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Christos Zoulas of Cornell University.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)refresh.h	8.1 (Berkeley) 6/4/93
- */
-
-/*
- * el.refresh.h: Screen refresh functions
- */
-#ifndef _h_el_refresh
-#define	_h_el_refresh
-
-#include "histedit.h"
-
-typedef struct {
-	coord_t	r_cursor;	/* Refresh cursor position	*/
-	int	r_oldcv;	/* Vertical locations		*/
-	int	r_newcv;
-} el_refresh_t;
-
-protected void	re_putc(EditLine *, int, int);
-protected void	re_clear_lines(EditLine *);
-protected void	re_clear_display(EditLine *);
-protected void	re_refresh(EditLine *);
-protected void	re_refresh_cursor(EditLine *);
-protected void	re_fastaddc(EditLine *);
-protected void	re_goto_bottom(EditLine *);
-
-#endif /* _h_el_refresh */