===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/layout.c,v
retrieving revision 1.23
retrieving revision 1.24
diff -c -r1.23 -r1.24
*** src/usr.bin/tmux/layout.c	2015/04/19 21:34:21	1.23
--- src/usr.bin/tmux/layout.c	2015/09/18 09:55:22	1.24
***************
*** 1,4 ****
! /* $OpenBSD: layout.c,v 1.23 2015/04/19 21:34:21 nicm Exp $ */
  
  /*
   * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
--- 1,4 ----
! /* $OpenBSD: layout.c,v 1.24 2015/09/18 09:55:22 nicm Exp $ */
  
  /*
   * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
***************
*** 686,691 ****
--- 686,693 ----
  	case LAYOUT_LEFTRIGHT:
  		if (size < 0)
  			size2 = ((sx + 1) / 2) - 1;
+ 		else if (insert_before)
+ 			size2 = sx - size - 1;
  		else
  			size2 = size;
  		if (size2 < PANE_MINIMUM)
***************
*** 699,704 ****
--- 701,708 ----
  	case LAYOUT_TOPBOTTOM:
  		if (size < 0)
  			size2 = ((sy + 1) / 2) - 1;
+ 		else if (insert_before)
+ 			size2 = sy - size - 1;
  		else
  			size2 = size;
  		if (size2 < PANE_MINIMUM)