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diff --git a/lisp/term/fbterm.el b/lisp/term/fbterm.el
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+;;; fbterm.el  -*- lexical-binding:t -*-
+
+;; Copyright (C) 2022 Free Software Foundation, Inc.
+
+;; Note that, in some versions of fbterm, the TERM environment
+;; variable is set to "linux".  When that's the case, the code below
+;; will not be executed, and only 8 colors will be available.  It is
+;; therefore necessary, with these versions of fbterm, to set that
+;; environment variable to "fbterm" to enable its 256 color mode
+;; extension.  See also the node "Emacs in a Linux console" of the
+;; Emacs FAQ.
+
+(require 'term/xterm)
+
+(defun terminal-init-fbterm ()
+  "Terminal initialization function for fbterm."
+
+  ;; fbterm can't display underlines, even though its terminfo data
+  ;; says it can.
+  (tty-no-underline)
+
+  ;; fbterm supports xterm's 256 color mode extension.
+  (xterm-register-default-colors xterm-standard-colors))
+
+(provide 'term/fbterm)
+
+;;; fbterm.el ends here