+2014-06-14 Glenn Morris <rgm@gnu.org>
+
+ * progmodes/cc-langs.el: Require cl-lib. (Bug#17463)
+ Replace delete-duplicates and mapcan by cl- versions throughout.
+ And cl-macroexpand-all by macroexpand-all.
+ (delete-duplicates, mapcan, cl-macroexpand-all): No need to declare.
+
2014-06-14 Eli Zaretskii <eliz@gnu.org>
* subr.el (posn-col-row): Doc fix. (Bug#17768)