* lisp/progmodes/autoconf.el (autoconf-font-lock-keywords): Apply
font-lock-keyword-face also to Libtool's LT_* macros (bug#50659).
"A\\(?:H_TEMPLATE\\|C_\\(?:SUBST\\|DEFINE\\(?:_UNQUOTED\\)?\\)\\)(\\[*\\(\\(?:\\sw\\|\\s_\\)+\\)\\]*")
(defvar autoconf-font-lock-keywords
- `(("\\_<A[CHMS]_\\(?:\\sw\\|\\s_\\)+" . font-lock-keyword-face)
+ `(("\\_<\\(?:A[CHMS]\\|LT\\)_\\(?:\\sw\\|\\s_\\)+" . font-lock-keyword-face)
(,autoconf-definition-regexp
1 font-lock-function-name-face)
;; Are any other M4 keywords really appropriate for configure.ac,