--- /dev/null
+--- demian/bc/scan.l.orig Wed Sep 13 14:25:47 2000
++++ demion/bc/scan.l Sun Jun 10 18:18:42 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