(:name vhdl-mode
       :description "Major mode for editing VHDL source code."
       :website "http://www.iis.ee.ethz.ch/~zimmi/emacs/vhdl-mode.html"
       :type http-tar
       :options ("xzf")
       :url "https://guest.iis.ee.ethz.ch/~zimmi/emacs/vhdl-mode-3.38.1.tar.gz"
       :prepare (progn
                  (add-to-list 'auto-mode-alist
                               '("\\.vhdl?\\'" . vhdl-mode))))