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diff --git a/configs/shared/emacs/.emacs.d/elpa/docker-tramp-20170206.1925/docker-tramp-compat.el b/configs/shared/emacs/.emacs.d/elpa/docker-tramp-20170206.1925/docker-tramp-compat.el
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+++ b/configs/shared/emacs/.emacs.d/elpa/docker-tramp-20170206.1925/docker-tramp-compat.el
@@ -0,0 +1,87 @@
+;;; docker-tramp-compat.el --- TRAMP integration for docker containers  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2015 Mario Rodas <marsam@users.noreply.github.com>
+
+;; Author: Mario Rodas <marsam@users.noreply.github.com>
+;; URL: https://github.com/emacs-pe/docker-tramp.el
+;; Keywords: docker, convenience
+;; Version: 0.1
+;; Package-Requires: ((emacs "24"))
+
+;; This file is NOT part of GNU Emacs.
+
+;;; License:
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+(require 'tramp-sh)
+
+(when (version< tramp-version "2.3")
+;; Overwrite `tramp-wait-for-output' to work with Alpine busy boxes in Tramp<2.3
+;;
+;; See:
+;; + https://lists.gnu.org/archive/html/tramp-devel/2016-05/msg00000.html
+;; + http://git.savannah.gnu.org/cgit/tramp.git/commit/?id=98a511248a9405848ed44de48a565b0b725af82c
+(defconst tramp-device-escape-sequence-regexp "\e[[0-9]+n"
+  "Terminal control escape sequences for device status.")
+
+(defun tramp-wait-for-output (proc &optional timeout)
+  "Wait for output from remote command."
+  (unless (buffer-live-p (process-buffer proc))
+    (delete-process proc)
+    (tramp-error proc 'file-error "Process `%s' not available, try again" proc))
+  (with-current-buffer (process-buffer proc)
+    (let* (;; Initially, `tramp-end-of-output' is "#$ ".  There might
+	   ;; be leading escape sequences, which must be ignored.
+	   ;; Busyboxes built with the EDITING_ASK_TERMINAL config
+	   ;; option send also escape sequences, which must be
+	   ;; ignored.
+	   (regexp (format "[^#$\n]*%s\\(%s\\)?\r?$"
+			   (regexp-quote tramp-end-of-output)
+			   tramp-device-escape-sequence-regexp))
+	   ;; Sometimes, the commands do not return a newline but a
+	   ;; null byte before the shell prompt, for example "git
+	   ;; ls-files -c -z ...".
+	   (regexp1 (format "\\(^\\|\000\\)%s" regexp))
+	   (found (tramp-wait-for-regexp proc timeout regexp1)))
+      (if found
+	  (let (buffer-read-only)
+	    ;; A simple-minded busybox has sent " ^H" sequences.
+	    ;; Delete them.
+	    (goto-char (point-min))
+	    (when (re-search-forward "^\\(.\b\\)+$" (point-at-eol) t)
+	      (forward-line 1)
+	      (delete-region (point-min) (point)))
+	    ;; Delete the prompt.
+	    (goto-char (point-max))
+	    (re-search-backward regexp nil t)
+	    (delete-region (point) (point-max)))
+	(if timeout
+	    (tramp-error
+	     proc 'file-error
+	     "[[Remote prompt `%s' not found in %d secs]]"
+	     tramp-end-of-output timeout)
+	  (tramp-error
+	   proc 'file-error
+	   "[[Remote prompt `%s' not found]]" tramp-end-of-output)))
+      ;; Return value is whether end-of-output sentinel was found.
+      found)))
+)
+
+(provide 'docker-tramp-compat)
+
+;;; docker-tramp-compat.el ends here