(math-read-token): Add local variable.

1 files changed, 4 insertions, 3 deletions

diff --git a/lisp/calc/calc-aent.el b/lisp/calc/calc-aent.el
index 9a693a18466..e174d81c41d 100644
--- a/lisp/calc/calc-aent.el
+++ b/lisp/calc/calc-aent.el
@@ -784,7 +784,8 @@ in Calc algebraic input.")
                    math-exp-pos (match-end 0)
                    math-expr-data (math-restore-dashes
                              (math-match-substring math-exp-str 1)))
-             (let ((code (assoc math-expr-data math-tex-ignore-words)))
+             (let ((code (assoc math-expr-data math-tex-ignore-words))
+                   envname)
                (cond ((null code))
                      ((null (cdr code))
                       (math-read-token))
@@ -801,8 +802,8 @@ in Calc algebraic input.")
                                  (string= envname "bmatrix")
                                  (string= envname "smallmatrix")
                                  (string= envname "pmatrix"))
-                             (if (setq j (string-match (concat "\\\\end{" envname "}")
-                                               math-exp-str math-exp-pos))
+                             (if (string-match (concat "\\\\end{" envname "}")
+                                               math-exp-str math-exp-pos)
                                  (setq math-exp-str 
                                        (replace-match "]" t t math-exp-str))
                                (error "%s" (concat "No closing \\end{" envname "}"))))))