(autoconf-font-lock-keywords): Check start boundary of symbols.

lisp/ChangeLog

+2006-02-09 Masatake YAMATO  <jet@gyve.org>
+
+	* progmodes/autoconf.el (autoconf-font-lock-keywords): Check start 
+	boundary of symbols.
+
 2006-02-08  Peter Doornbosch  <peter.doornbosch@luminis.nl>  (tiny change)
 
 	* vc-svn.el (vc-svn-print-log): Show recent commits as well.

lisp/progmodes/autoconf.el

@@ -52,7 +52,7 @@
   "AC_\\(SUBST\\|DEFINE\\(_UNQUOTED\\)?\\)(\\(\\sw+\\)")
 
 (defvar autoconf-font-lock-keywords
-  `(("A[CHMS]_\\sw+" . font-lock-keyword-face)
+  `(("\\_<A[CHMS]_\\sw+" . font-lock-keyword-face)
     (,autoconf-definition-regexp
      3 font-lock-function-name-face)
     ;; Are any other M4 keywords really appropriate for configure.in,