Index: clang-format.el
===================================================================
--- clang-format.el
+++ clang-format.el
@@ -35,9 +35,21 @@
   "Format code using clang-format."
   :group 'tools)
 
+;; Some distros don't provide a real clang-format. A noteable example is on
+;; Debian Jessie where clang-format-3.4 and clang-format-3.5 are both available
+;; packages, but the work hasn't been done to set up /etc/alternatives to allow
+;; aliasing one to be clang-format
+;;
+;; This is kind of a hack because there could be a potentially large list of
+;; clang versions we need to support, but AFAK Debian Jessie is the only major
+;; Linux distro that has this idiosyncacy (and I'd imagine it will be fixed by
+;; the next the next Debian stable release is out).
 (defcustom clang-format-executable
-  (or (executable-find "clang-format")
-      "clang-format")
+  (cond
+   ((executable-find "clang-format") "clang-format")
+   ((executable-find "clang-format-3.5") "clang-format-3.5")
+   ((executable-find "clang-format-3.4") "clang-format-3.4"))
+
   "Location of the clang-format executable.
 
 A string containing the name or the full path of the executable."