Minor fix in .gdbinit

* src/.gdbinit (xprintsym): Don't attempt to print the
symbol's name if it is not yet set.  This happens with
built-in symbols at the beginning of 'main'.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/.gdbinit b/src/.gdbinit
index b8b303104f5..8c9a227ee33 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -1059,8 +1059,10 @@ end
 define xprintsym
   xsymname $arg0
   xgetptr $symname
-  set $sym_name = (struct Lisp_String *) $ptr
-  xprintstr $sym_name
+  if $ptr != 0
+    set $sym_name = (struct Lisp_String *) $ptr
+    xprintstr $sym_name
+  end
 end
 document xprintsym
   Print argument as a symbol.