From 11d0fdf779380d2951b9ff0cc37a6872cb1a7438 Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet@caleb.ins.cwru.edu>
Date: Fri, 2 Nov 2012 10:06:20 -0400
Subject: [PATCH 1/1] Bash-4.2 patch 39

---
 expr.c       | 10 ++++++++++
 patchlevel.h |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/expr.c b/expr.c
index 14cdca2..98d75b6 100644
--- a/expr.c
+++ b/expr.c
@@ -1009,6 +1009,12 @@ expr_streval (tok, e, lvalue)
   arrayind_t ind;
 #endif
 
+/*itrace("expr_streval: %s: noeval = %d", tok, noeval);*/
+  /* If we are suppressing evaluation, just short-circuit here instead of
+     going through the rest of the evaluator. */
+  if (noeval)
+    return (0);
+
   /* [[[[[ */
 #if defined (ARRAY_VARS)
   v = (e == ']') ? array_variable_part (tok, (char **)0, (int *)0) : find_variable (tok);
@@ -1182,6 +1188,10 @@ readtok ()
 #endif /* ARRAY_VARS */
 
       *cp = '\0';
+      /* XXX - watch out for pointer aliasing issues here */
+      if (curlval.tokstr && curlval.tokstr == tokstr)
+	init_lvalue (&curlval);
+
       FREE (tokstr);
       tokstr = savestring (tp);
       *cp = c;
diff --git a/patchlevel.h b/patchlevel.h
index 99d2ea2..7193c0c 100644
--- a/patchlevel.h
+++ b/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 38
+#define PATCHLEVEL 39
 
 #endif /* _PATCHLEVEL_H_ */
-- 
2.7.4