Bash-4.2 patch 6

patchlevel.h

@@ -25,6 +25,6 @@
    regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
    looks for to find the patch level (for the sccs version string). */
 
-#define PATCHLEVEL 5
+#define PATCHLEVEL 6
 
 #endif /* _PATCHLEVEL_H_ */

variables.c

@@ -3660,7 +3660,7 @@ chkexport (name)
   SHELL_VAR *v;
 
   v = find_variable (name);
-  if (exported_p (v))
+  if (v && exported_p (v))
     {
       array_needs_making = 1;
       maybe_make_export_env ();