bug#12255: 24.2; [PATCH] wrong regexp in c-basic-matchers-before

[Leo]

It seems to me this regexp in c-basic-matchers-before would never
succeed unless @ is of word syntax.

(concat "\\<"
        (regexp-opt
         '("@interface" "@implementation" "@protocol")
         t)
        "\\>")

Should this patch be applied?

diff --git a/lisp/progmodes/cc-fonts.el b/lisp/progmodes/cc-fonts.el
index 2d116e1e..f0f40d54 100644
--- a/lisp/progmodes/cc-fonts.el
+++ b/lisp/progmodes/cc-fonts.el
@@ -855,7 +855,7 @@ (c-lang-defconst c-basic-matchers-before
 
            ;; The @interface/@implementation/@protocol directives.
            ,(c-make-font-lock-search-function
-             (concat "\\<"
+             (concat "\\_<"
                      (regexp-opt
                       '("@interface" "@implementation" "@protocol")
                       t)