--- rxvt-unicode/src/command.C	2012/06/29 13:57:26	1.523
+++ rxvt-unicode/src/command.C	2012/12/29 15:59:51	1.528
@@ -6,7 +6,7 @@
  * Copyright (c) 1992      John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk>
  *				- original version
  * Copyright (c) 1994      Robert Nation <nation@rocket.sanders.lockheed.com>
- * 				- extensive modifications
+ *				- extensive modifications
  * Copyright (c) 1995      Garrett D'Amore <garrett@netcom.com>
  *				- vt100 printing
  * Copyright (c) 1995      Steven Hirsch <hirsch@emba.uvm.edu>
@@ -22,7 +22,7 @@
  *				  and Linux 1.2.x
  * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
  * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
- * 				- extensive modifications
+ *				- extensive modifications
  * Copyright (c) 1998      Alfredo K. Kojima <kojima@windowmaker.org>
  * Copyright (c) 2001      Marius Gedminas
  *				- Ctrl/Mod4+Tab works like Meta+Tab (options)
@@ -943,7 +943,7 @@
 {
   flush_ev.stop ();
 
-#ifdef HAVE_BG_PIXMAP
+#ifdef HAVE_IMG
   if (bg_flags & BG_NEEDS_REFRESH)
     {
       bg_flags &= ~BG_NEEDS_REFRESH;
@@ -1840,7 +1840,7 @@
 #endif
 }
 
-#if ENABLE_TRANSPARENCY || ENABLE_PERL
+#if BG_IMAGE_FROM_ROOT || ENABLE_PERL
 void ecb_hot
 rxvt_term::rootwin_cb (XEvent &ev)
 {
@@ -1860,7 +1860,7 @@
         if (ev.xproperty.atom == xa[XA_XROOTPMAP_ID]
             || ev.xproperty.atom == xa[XA_ESETROOT_PMAP_ID])
           {
-# if ENABLE_TRANSPARENCY
+#if BG_IMAGE_FROM_ROOT
             bg_set_root_pixmap ();
             update_background ();
 #endif
@@ -2389,6 +2389,8 @@
       if (len == (size_t)-1)
         {
           mbstate.reset (); // reset now undefined conversion state
+          // a -1 might indicate that a previous incomplete char is invalid (previous return -2)
+          // in which case we "erroneously" return the next byte which might be valid.
           return (unsigned char)*cmdbuf_ptr++; // the _occasional_ latin1 character is allowed to slip through
         }
 
@@ -3453,7 +3455,8 @@
       case URxvt_Color_border:
         process_color_seq (op, Color_border, str, resp);
         break;
-#if ENABLE_TRANSPARENCY
+
+#if BG_IMAGE_FROM_ROOT
       case URxvt_Color_tint:
         process_color_seq (op, Color_tint, str, resp);
         {