1. xemacs
  2. speedbar

Source

speedbar / sb-rmail.el

Diff from to

File sb-rmail.el

 ;;             "Rmail specific speedbar button generator.")
 ;;
 ;;   This file requires speedbar.
+(eval-when-compile (require 'speedbar))
 
 ;;; Change log:
 ;; 0.1   - first revision copied from speedbspec.el V 0.1.1