1 files changed, 3 insertions, 0 deletions
diff --git a/subst.h b/subst.h
index 33d3f49..e07055b 100644
--- a/subst.h
+++ b/subst.h
@@ -151,6 +151,9 @@ extern char *expand_string_to_string __P((char *, int));
 extern char *expand_string_unsplit_to_string __P((char *, int));
 extern char *expand_assignment_string_to_string __P((char *, int));
 
+/* Expand an arithmetic expression string */
+extern char *expand_arith_string __P((char *, int));
+
 /* De-quoted quoted characters in STRING. */
 extern char *dequote_string __P((char *));