Fix info crashes when resizing window

texinfo-4.11-res_win_segfault.patch

@@ -0,0 +1,58 @@
+--- texinfo-4.11/info/window.c_old	2007-07-01 23:20:31.000000000 +0200
++++ texinfo-4.11/info/window.c	2007-11-13 10:52:44.000000000 +0100
+@@ -1,5 +1,5 @@
+ /* window.c -- windows in Info.
+-   $Id: texinfo-4.11-res_win_segfault.patch,v 1.1 2007/11/13 11:27:40 vcrhonek Exp $
++   $Id: texinfo-4.11-res_win_segfault.patch,v 1.1 2007/11/13 11:27:40 vcrhonek Exp $
+ 
+    Copyright (C) 1993, 1997, 1998, 2001, 2002, 2003, 2004, 2007
+    Free Software Foundation, Inc.
+@@ -249,9 +249,22 @@
+               break;
+             }
+           else
+-            win= win->next;
++            win = win->next;
+         }
+     }
++
++  /* One more loop.  If any heights or widths have become negative,
++     set them to zero.  This can apparently happen with resizing down to
++     very small sizes.  Sadly, it is not apparent to me where in the
++     above calculations it goes wrong.  */
++  for (win = windows; win; win = win->next)
++    {
++      if (win->height < 0)
++        win->height = 0;
++
++      if (win->width < 0)
++        win->width = 0;
++    }
+ }
+ 
+ /* Make a new window showing NODE, and return that window structure.
+--- texinfo-4.11/info/display.c_old	2007-07-01 23:20:29.000000000 +0200
++++ texinfo-4.11/info/display.c	2007-11-13 10:53:58.000000000 +0100
+@@ -1,5 +1,5 @@
+ /* display.c -- How to display Info windows.
+-   $Id: texinfo-4.11-res_win_segfault.patch,v 1.1 2007/11/13 11:27:40 vcrhonek Exp $
++   $Id: texinfo-4.11-res_win_segfault.patch,v 1.1 2007/11/13 11:27:40 vcrhonek Exp $
+ 
+    Copyright (C) 1993, 1997, 2003, 2004, 2006, 2007
+    Free Software Foundation, Inc.
+@@ -136,8 +136,13 @@
+   if (display_inhibited)
+     display_was_interrupted_p = 1;
+ 
+-  /* If the window has no height, or display is inhibited, quit now. */
+-  if (!win->height || display_inhibited)
++  /* If the window has no height, or display is inhibited, quit now.
++     Strictly speaking, it should only be necessary to test if the
++     values are equal to zero, since window_new_screen_size should
++     ensure that the window height/width never becomes negative, but
++     since historically this has often been the culprit for crashes, do
++     our best to be doubly safe.  */
++  if (win->height <= 0 || win->width <= 0 || display_inhibited)
+     return;
+ 
+   /* If the window's first row doesn't appear in the_screen, then it

texinfo.spec

@@ -1,7 +1,7 @@
 Summary: Tools needed to create Texinfo format documentation files
 Name: texinfo
 Version: 4.11
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: GPLv3
 Group: Applications/Publishing
 Url: http://www.gnu.org/software/texinfo/
@@ -9,6 +9,7 @@ Source0: ftp://ftp.gnu.org/gnu/texinfo/texinfo-%{version}.tar.bz2
 Source1: info-dir
 Source2: texi2pdf.man
 Patch0: texinfo-4.11-zlib.patch
+Patch1: texinfo-4.11-res_win_segfault.patch
 Requires(post): /sbin/install-info
 Requires(preun): /sbin/install-info
 Buildroot: %{_tmppath}/%{name}-%{version}-root
@@ -59,6 +60,7 @@ for printing using TeX.
 %prep
 %setup -q
 %patch0 -p1 -b .zlib
+%patch1 -p1 -b .res_win_segfault
 
 %build
 
@@ -137,6 +139,10 @@ fi
 %{_mandir}/man1/texi2pdf.1*
 
 %changelog
+* Tue Nov 13 2007 Vitezslav Crhonek <vcrhonek@redhat.com> - 4.11-2
+- Fix info crashes when resizing window
+  Resolves: #243971
+
 * Wed Sep 26 2007 Vitezslav Crhonek <vcrhonek@redhat.com> - 4.11-1
 - Rebase to upstream texinfo-4.11 (update zlib.patch, drop
   texindex.patch and 0xA0.patch -- both included in upstream)