Fix bug #11587 with a crash in an Info buffer under linum-mode.

 src/xdisp.c (handle_stop): Detect whether we have overlay strings
 loaded by testing it->current.overlay_string_index to be
 non-negative, instead of checking whether n_overlay_strings is
 positive.

diff --git a/src/ChangeLog b/src/ChangeLog
index d8d14005d1e2c0e0dbf7e6419f447dd40084f178..489c40a4d4d0c3fce3ecece6fe851709e8de379b 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2012-05-30  Eli Zaretskii  <eliz@gnu.org>
+
+       * xdisp.c (handle_stop): Detect whether we have overlay strings
+       loaded by testing it->current.overlay_string_index to be
+       non-negative, instead of checking whether n_overlay_strings is
+       positive.  (Bug#11587)
+
 2012-05-30  Chong Yidong  <cyd@gnu.org>
 
        * keymap.c (describe_map_tree): Revert 2011-07-07 change (Bug#1169).

diff --git a/src/xdisp.c b/src/xdisp.c
index a3227b556a939abefdd7313315f917f04138ba2e..6762bf85eb459f47c1856c89df82f8858e2897ef 100644 (file)
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -3157,7 +3157,7 @@ handle_stop (struct it *it)
                     onto the stack one more time, which is not
                     expected by the rest of the code that processes
                     overlay strings.  */
-                 || (it->n_overlay_strings <= 0
+                 || (it->current.overlay_string_index < 0
                      ? !get_overlay_strings_1 (it, 0, 0)
                      : 0))
                {