--- bash-4.0/shell.c.orig	2009-10-15 15:57:56.000000000 -0400
+++ bash-4.0/shell.c	2009-10-15 15:58:28.000000000 -0400
@@ -572,7 +572,7 @@
 
       /* running_under_emacs == 2 for `eterm' */
       running_under_emacs = (emacs != 0) || (term && STREQN (term, "emacs", 5));
-      running_under_emacs += term && STREQN (term, "eterm", 5) && strstr (emacs, "term");
+      running_under_emacs += term && STREQN (term, "eterm", 5) && (emacs != 0) && strstr (emacs, "term");
 
       if (running_under_emacs)
 	gnu_error_format = 1;