Merge branch 'feature/emacs-26.3'v1.0.0

Creating a merge commit in order to create a 1.0.0 tag.

Note that this merge has breaking changes, as described in the NEWS
section.

* feature/emacs-26.3:
  autobuild: Recognize NetBSD and install packages via pkgin
  Bump the minimum Emacs version to 26.3! 🎉🤞
  Extend docker testing framework to test against Emacs versions
  Update and cleanup the Install section
  Make sure pkg-config is correctly set in autobuild
  Add support for Alpine Linux to autobuild
  Render crisp images for HiDPI screens by default
  Remove Emacs 24.4 guards for cua-mode
  Remove compatibility function for image-mode-winprops
  Remove pdf-util-window-pixel-width, fallback to window-body-width
  Remove macro / function re-definitions
  Remove bugfix for imenu in Emacs 24.3 and below
  Remove guards in `pdf-virtual` tests and code.
  Explicitly declare documentation files as Org files
  Add a byteclean target in the Makefile

1 files changed, 0 insertions, 17 deletions

diff --git a/lisp/pdf-outline.el b/lisp/pdf-outline.el
index a9212b7..fc75b02 100644
--- a/lisp/pdf-outline.el
+++ b/lisp/pdf-outline.el
@@ -572,23 +572,6 @@ not call `imenu-sort-function'."
     (cons title
           (nconc (nreverse keep-at-top) menulist))))
 
-;; bugfix for imenu in Emacs 24.3 and below.
-(when (condition-case nil
-          (progn (imenu--truncate-items '(("" 0))) nil)
-        (error t))
-  (eval-after-load "imenu"
-    '(defun imenu--truncate-items (menulist)
-       "Truncate all strings in MENULIST to `imenu-max-item-length'."
-       (mapc (lambda (item)
-               ;; Truncate if necessary.
-               (when (and (numberp imenu-max-item-length)
-                          (> (length (car item)) imenu-max-item-length))
-                 (setcar item (substring (car item) 0 imenu-max-item-length)))
-               (when (imenu--subalist-p item)
-                 (imenu--truncate-items (cdr item))))
-             menulist))))
-
-
 
 (provide 'pdf-outline)