Ensure package-pinned-packages is bound before referencing it

Add a bound-and-true-p guard to package-pinned-packages before
referencing it in use-package-ensure-elpa.

Package pinning was introduced in Emacs 24.4, and hence
package-pinned-packages in unbound by default in earlier versions.

Relevant commits:
	 72452b5 Merge pull request https://github.com/jwiegley/use-package/issues/367 from ketbra/master
	 5053f75 Make pin and ensure compatible

Fixes https://github.com/jwiegley/use-package/issues/375

Copyright-paperwork-exempt: yes

diff --git a/lisp/use-package/use-package.el b/lisp/use-package/use-package.el
index a2f9883a110657358407c665954c80782df90e2e..427945ff5b034c37ca1a95734ef84314ec107438 100644 (file)
--- a/lisp/use-package/use-package.el
+++ b/lisp/use-package/use-package.el
@@ -500,7 +500,8 @@ manually updated package."
 (defun use-package-ensure-elpa (package &optional no-refresh)
   (if (package-installed-p package)
       t
-    (if (and (not no-refresh) (assoc package package-pinned-packages))
+    (if (and (not no-refresh)
+             (assoc package (bound-and-true-p package-pinned-packages)))
         (package-read-all-archive-contents))
     (if (or (assoc package package-archive-contents) no-refresh)
         (package-install package)