Update libreadline with vendor patches 8-13 as fetched from:

ftp://ftp.cwru.edu/pub/bash/readline-5.2-patches/

MFC after:	2 weeks

3 files changed, 51 insertions, 28 deletions

diff --git a/contrib/libreadline/display.c b/contrib/libreadline/display.c
index 728364f..bab04d7 100644
--- a/contrib/libreadline/display.c
+++ b/contrib/libreadline/display.c
@@ -392,14 +392,14 @@ rl_expand_prompt (prompt)
       t = ++p;
       local_prompt = expand_prompt (p, &prompt_visible_length,
 				       &prompt_last_invisible,
-				       (int *)NULL,
+				       &prompt_invis_chars_first_line,
 				       &prompt_physical_chars);
       c = *t; *t = '\0';
       /* The portion of the prompt string up to and including the
 	 final newline is now null-terminated. */
       local_prompt_prefix = expand_prompt (prompt, &prompt_prefix_length,
 						   (int *)NULL,
-						   &prompt_invis_chars_first_line,
+						   (int *)NULL,
 						   (int *)NULL);
       *t = c;
       local_prompt_len = local_prompt ? strlen (local_prompt) : 0;
@@ -911,6 +911,10 @@ rl_redisplay ()
 	     second and subsequent lines start at inv_lbreaks[N], offset by
 	     OFFSET (which has already been calculated above).  */
 
+#define INVIS_FIRST()	(prompt_physical_chars > _rl_screenwidth ? prompt_invis_chars_first_line : wrap_offset)
+#define WRAP_OFFSET(line, offset)  ((line == 0) \
+					? (offset ? INVIS_FIRST() : 0) \
+					: ((line == prompt_last_screen_line) ? wrap_offset-prompt_invis_chars_first_line : 0))
 #define W_OFFSET(line, offset) ((line) == 0 ? offset : 0)
 #define VIS_LLEN(l)	((l) > _rl_vis_botlin ? 0 : (vis_lbreaks[l+1] - vis_lbreaks[l]))
 #define INV_LLEN(l)	(inv_lbreaks[l+1] - inv_lbreaks[l])
@@ -945,7 +949,13 @@ rl_redisplay ()
 		  _rl_last_c_pos != o_cpos &&
 		  _rl_last_c_pos > wrap_offset &&
 		  o_cpos < prompt_last_invisible)
-		_rl_last_c_pos -= wrap_offset;
+		_rl_last_c_pos -= prompt_invis_chars_first_line;	/* XXX - was wrap_offset */
+	      else if (linenum == prompt_last_screen_line && prompt_physical_chars > _rl_screenwidth &&
+			(MB_CUR_MAX > 1 && rl_byte_oriented == 0) &&
+			cpos_adjusted == 0 &&
+			_rl_last_c_pos != o_cpos &&
+			_rl_last_c_pos > (prompt_last_invisible - _rl_screenwidth - prompt_invis_chars_first_line))
+		_rl_last_c_pos -= (wrap_offset-prompt_invis_chars_first_line);
 		  
 	      /* If this is the line with the prompt, we might need to
 		 compensate for invisible characters in the new line. Do
@@ -1049,7 +1059,7 @@ rl_redisplay ()
 		tx = _rl_col_width (&visible_line[pos], 0, nleft) - visible_wrap_offset;
 	      else
 		tx = nleft;
-	      if (_rl_last_c_pos > tx)
+	      if (tx >= 0 && _rl_last_c_pos > tx)
 		{
 	          _rl_backspace (_rl_last_c_pos - tx);	/* XXX */
 	          _rl_last_c_pos = tx;
@@ -1205,7 +1215,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
      int current_line, omax, nmax, inv_botlin;
 {
   register char *ofd, *ols, *oe, *nfd, *nls, *ne;
-  int temp, lendiff, wsatend, od, nd;
+  int temp, lendiff, wsatend, od, nd, twidth, o_cpos;
   int current_invis_chars;
   int col_lendiff, col_temp;
 #if defined (HANDLE_MULTIBYTE)
@@ -1221,7 +1231,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
   if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
     temp = _rl_last_c_pos;
   else
-    temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset);
+    temp = _rl_last_c_pos - WRAP_OFFSET (_rl_last_v_pos, visible_wrap_offset);
   if (temp == _rl_screenwidth && _rl_term_autowrap && !_rl_horizontal_scroll_mode
 	&& _rl_last_v_pos == current_line - 1)
     {
@@ -1466,6 +1476,8 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	_rl_last_c_pos = lendiff;
     }
 
+  o_cpos = _rl_last_c_pos;
+
   /* When this function returns, _rl_last_c_pos is correct, and an absolute
      cursor postion in multibyte mode, but a buffer index when not in a
      multibyte locale. */
@@ -1475,7 +1487,9 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
   /* We need to indicate that the cursor position is correct in the presence of
      invisible characters in the prompt string.  Let's see if setting this when
      we make sure we're at the end of the drawn prompt string works. */
-  if (current_line == 0 && MB_CUR_MAX > 1 && rl_byte_oriented == 0 && _rl_last_c_pos == prompt_physical_chars)
+  if (current_line == 0 && MB_CUR_MAX > 1 && rl_byte_oriented == 0 && 
+      (_rl_last_c_pos > 0 || o_cpos > 0) &&
+      _rl_last_c_pos == prompt_physical_chars)
     cpos_adjusted = 1;
 #endif
 #endif
@@ -1566,11 +1580,16 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	    }
 	  else
 	    {
-	      /* We have horizontal scrolling and we are not inserting at
-		 the end.  We have invisible characters in this line.  This
-		 is a dumb update. */
 	      _rl_output_some_chars (nfd, temp);
 	      _rl_last_c_pos += col_temp;
+	      /* If nfd begins before any invisible characters in the prompt,
+		 adjust _rl_last_c_pos to account for wrap_offset and set
+		 cpos_adjusted to let the caller know. */
+	      if (current_line == 0 && wrap_offset && ((nfd - new) <= prompt_last_invisible))
+		{
+		  _rl_last_c_pos -= wrap_offset;
+		  cpos_adjusted = 1;
+		}
 	      return;
 	    }
 	  /* Copy (new) chars to screen from first diff to last match. */
@@ -1578,15 +1597,15 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	  if ((temp - lendiff) > 0)
 	    {
 	      _rl_output_some_chars (nfd + lendiff, temp - lendiff);
-#if 1
 	     /* XXX -- this bears closer inspection.  Fixes a redisplay bug
 		reported against bash-3.0-alpha by Andreas Schwab involving
 		multibyte characters and prompt strings with invisible
 		characters, but was previously disabled. */
-	      _rl_last_c_pos += _rl_col_width (nfd+lendiff, 0, temp-col_lendiff);
-#else
-	      _rl_last_c_pos += _rl_col_width (nfd+lendiff, 0, temp-lendiff);
-#endif
+	      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+		twidth = _rl_col_width (nfd+lendiff, 0, temp-col_lendiff);
+	      else
+		twidth = temp - lendiff;
+	      _rl_last_c_pos += twidth;
 	    }
 	}
       else
@@ -1780,7 +1799,7 @@ _rl_move_cursor_relative (new, data)
   int woff;			/* number of invisible chars on current line */
   int cpos, dpos;		/* current and desired cursor positions */
 
-  woff = W_OFFSET (_rl_last_v_pos, wrap_offset);
+  woff = WRAP_OFFSET (_rl_last_v_pos, wrap_offset);
   cpos = _rl_last_c_pos;
 #if defined (HANDLE_MULTIBYTE)
   /* If we have multibyte characters, NEW is indexed by the buffer point in
@@ -1794,7 +1813,11 @@ _rl_move_cursor_relative (new, data)
       /* Use NEW when comparing against the last invisible character in the
 	 prompt string, since they're both buffer indices and DPOS is a
 	 desired display position. */
-      if (new > prompt_last_invisible)		/* XXX - don't use woff here */
+      if ((new > prompt_last_invisible) ||		/* XXX - don't use woff here */
+	  (prompt_physical_chars > _rl_screenwidth &&
+	   _rl_last_v_pos == prompt_last_screen_line &&
+	   wrap_offset != woff &&
+	   new > (prompt_last_invisible-_rl_screenwidth-wrap_offset)))
 	{
 	  dpos -= woff;
 	  /* Since this will be assigned to _rl_last_c_pos at the end (more
diff --git a/contrib/libreadline/input.c b/contrib/libreadline/input.c
index 85b56c9..a84038b 100644
--- a/contrib/libreadline/input.c
+++ b/contrib/libreadline/input.c
@@ -154,7 +154,7 @@ _rl_unget_char (key)
     {
       pop_index--;
       if (pop_index < 0)
-	pop_index = ibuffer_len - 1;
+	pop_index = ibuffer_len;
       ibuffer[pop_index] = key;
       return (1);
     }
diff --git a/contrib/libreadline/support/shobj-conf b/contrib/libreadline/support/shobj-conf
index ef7863a..358b278 100755
--- a/contrib/libreadline/support/shobj-conf
+++ b/contrib/libreadline/support/shobj-conf
@@ -10,7 +10,7 @@
 # Chet Ramey
 # chet@po.cwru.edu
 
-# Copyright (C) 1996-2002 Free Software Foundation, Inc.
+# Copyright (C) 1996-2007 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -114,7 +114,7 @@ linux*-*|gnu*-*|k*bsd*-gnu-*)
 	SHLIB_LIBVERSION='$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)$(SHLIB_MINOR)'
 	;;
 
-freebsd2* | netbsd*)
+freebsd2*)
 	SHOBJ_CFLAGS=-fpic
 	SHOBJ_LD=ld
 	SHOBJ_LDFLAGS='-x -Bshareable'
@@ -125,7 +125,7 @@ freebsd2* | netbsd*)
 
 # FreeBSD-3.x ELF
 freebsd[3-9]*|freebsdelf[3-9]*|freebsdaout[3-9]*|dragonfly*)
-	SHOBJ_CFLAGS=-fpic
+	SHOBJ_CFLAGS=-fPIC
 	SHOBJ_LD='${CC}'
 
 	if [ -x /usr/bin/objformat ] && [ "`/usr/bin/objformat`" = "elf" ]; then
@@ -142,7 +142,7 @@ freebsd[3-9]*|freebsdelf[3-9]*|freebsdaout[3-9]*|dragonfly*)
 	;;
 
 # Darwin/MacOS X
-darwin8*)
+darwin[89]*)
 	SHOBJ_STATUS=supported
 	SHLIB_STATUS=supported
 	
@@ -153,7 +153,7 @@ darwin8*)
 	SHLIB_LIBVERSION='$(SHLIB_MAJOR)$(SHLIB_MINOR).$(SHLIB_LIBSUFF)'
 	SHLIB_LIBSUFF='dylib'
 
-	SHOBJ_LDFLAGS='-undefined dynamic_lookup'
+	SHOBJ_LDFLAGS='-dynamiclib -dynamic -undefined dynamic_lookup -arch_only `/usr/bin/arch`'
 	SHLIB_XLDFLAGS='-dynamiclib -arch_only `/usr/bin/arch` -install_name $(libdir)/$@ -current_version $(SHLIB_MAJOR)$(SHLIB_MINOR) -compatibility_version $(SHLIB_MAJOR) -v'
 
 	SHLIB_LIBS='-lncurses'	# see if -lcurses works on MacOS X 10.1 
@@ -171,7 +171,7 @@ darwin*|macosx*)
 	SHLIB_LIBSUFF='dylib'
 
 	case "${host_os}" in
-	darwin[78]*)	SHOBJ_LDFLAGS=''
+	darwin[789]*)	SHOBJ_LDFLAGS=''
 			SHLIB_XLDFLAGS='-dynamiclib -arch_only `/usr/bin/arch` -install_name $(libdir)/$@ -current_version $(SHLIB_MAJOR)$(SHLIB_MINOR) -compatibility_version $(SHLIB_MAJOR) -v'
 			;;
 	*)		SHOBJ_LDFLAGS='-dynamic'
@@ -182,7 +182,7 @@ darwin*|macosx*)
 	SHLIB_LIBS='-lncurses'	# see if -lcurses works on MacOS X 10.1 
 	;;
 
-openbsd*)
+openbsd*|netbsd*)
 	SHOBJ_CFLAGS=-fPIC
 	SHOBJ_LD='${CC}'
 	SHOBJ_LDFLAGS='-shared'
@@ -247,7 +247,7 @@ osf*)
 	SHLIB_LIBVERSION='$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)'
 	;;
 
-aix4.[2-9]*-*gcc*)		# lightly tested by jik@cisco.com
+aix4.[2-9]*-*gcc*|aix[5-9].*-*gcc*)		# lightly tested by jik@cisco.com
 	SHOBJ_CFLAGS=-fpic
 	SHOBJ_LD='ld'
 	SHOBJ_LDFLAGS='-bdynamic -bnoentry -bexpall'
@@ -258,7 +258,7 @@ aix4.[2-9]*-*gcc*)		# lightly tested by jik@cisco.com
 	SHLIB_LIBVERSION='$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)'
 	;;
 
-aix4.[2-9]*)
+aix4.[2-9]*|aix[5-9].*)
 	SHOBJ_CFLAGS=-K
 	SHOBJ_LD='ld'
 	SHOBJ_LDFLAGS='-bdynamic -bnoentry -bexpall'
@@ -329,7 +329,7 @@ hpux10*-*gcc*)
 	SHOBJ_LD='${CC}'
 	# if you have problems linking here, moving the `-Wl,+h,$@' from
 	# SHLIB_XLDFLAGS to SHOBJ_LDFLAGS has been reported to work
-	SHOBJ_LDFLAGS='-shared -Wl,-b -Wl,+s'
+	SHOBJ_LDFLAGS='-shared -fpic -Wl,-b -Wl,+s'
 
 	SHLIB_XLDFLAGS='-Wl,+h,$@ -Wl,+b,$(libdir)'
 	SHLIB_LIBSUFF='sl'