From 0209a386fbff465d69133ec159bd519be3fc0d78 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Wed, 24 Oct 2001 22:49:12 +0000
Subject: [PATCH] (substitute-env-vars): Quote the arg to rx.

---
 lisp/env.el | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lisp/env.el b/lisp/env.el
index e19f9f7f5da..1da48e05ea9 100644
--- a/lisp/env.el
+++ b/lisp/env.el
@@ -59,9 +59,9 @@ the entire variable name in braces.  Use `$$' to insert a single
 dollar sign."
   (let ((start 0))
     (while (string-match 
-	    (rx (or (and "$" (submatch (1+ (in "a-zA-Z0-9_"))))
-		    (and "${" (submatch (minimal-match (0+ anything))) "}")
-		    "$$"))
+	    (rx '(or (and "$" (submatch (1+ (in "a-zA-Z0-9_"))))
+		     (and "${" (submatch (minimal-match (0+ anything))) "}")
+		     "$$"))
 	    string start)
       (cond ((match-beginning 1)
 	     (let ((value (getenv (match-string 1 string))))
-- 
2.39.5