--- /dev/null
+--- bc-1.06/bc/scan.l.wiget Fri Apr 13 18:49:49 2001
++++ bc-1.06/bc/scan.l Fri Apr 13 18:50:58 2001
+@@ -143,7 +143,7 @@
+
+ /* Definitions for readline access. */
+ extern FILE *rl_instream;
+-_PROTOTYPE(char *readline, (char *));
++_PROTOTYPE(char *readline, (const char *));
+
+ /* rl_input puts upto MAX characters into BUF with the number put in
+ BUF placed in *RESULT. If the yy input file is the same as