--- a/mcabber/mcabber/screen.c	Sun Mar 27 12:45:41 2011 +0200
+++ b/mcabber/mcabber/screen.c	Sun Mar 27 13:35:08 2011 +0200
@@ -3206,7 +3206,7 @@
 
 //  scr_cmdhisto_addline()
 // Add a line to the inputLine history
-static inline void scr_cmdhisto_addline(char *line)
+static void scr_cmdhisto_addline(char *line)
 {
   int max_histo_lines;
 
@@ -3231,6 +3231,19 @@
   cmdhisto_nblines++;
 }
 
+//  scr_cmdhisto_reset()
+// Reset the inputLine history
+static void scr_cmdhisto_reset(void)
+{
+  while (cmdhisto_nblines) {
+    g_free(cmdhisto->data);
+    cmdhisto = g_list_delete_link(cmdhisto, cmdhisto);
+    cmdhisto_nblines--;
+  }
+  cmdhisto_backup[0] = 0;
+  cmdhisto_cur = NULL;
+}
+
 //  scr_cmdhisto_prev()
 // Look for previous line beginning w/ the given mask in the inputLine history
 // Returns NULL if none found
@@ -3496,6 +3509,13 @@
   return 0;
 }
 
+//  readline_clear_history()
+// Clear command line history.
+void readline_clear_history(void)
+{
+  scr_cmdhisto_reset();
+}
+
 void readline_cancel_completion(void)
 {
   scr_cancel_current_completion();