Regenerate semantic grammars if the generating code changes

* admin/grammars/Makefile.in (emacs): Set load-prefer-newer.
(grammar_bovine, grammar_wisent): New variables.
(${bovinedir}/%-by.el, ${bovinedir}/scm-by.el)
(${cedetdir}/semantic/%-wy.el, ${wisentdir}/%-wy.el)
(${wisentdir}/javat-wy.el, ${cedetdir}/srecode/srt-wy.el):
Depend on the source file for the generating function.
* lisp/cedet/semantic/bovine/grammar.el (bovine--make-parser-1):
* lisp/cedet/semantic/wisent/grammar.el (wisent--make-parser-1):
Force generation of the output file.  The previous "is the output
newer than the input" failed to account for changes in the
generation code itself.  Force so we can let make figure it out.

admin/grammars/Makefile.in

@@ -34,7 +34,7 @@ top_builddir = @top_builddir@
 unexport EMACSDATA EMACSDOC EMACSPATH
 
 EMACS = ${top_builddir}/src/emacs
-emacs = EMACSLOADPATH= "${EMACS}" -batch --no-site-file --no-site-lisp
+emacs = EMACSLOADPATH= "${EMACS}" -batch --no-site-file --no-site-lisp --eval '(setq load-prefer-newer t)'
 
 make_bovine = ${emacs} -l semantic/bovine/grammar -f bovine-batch-make-parser
 make_wisent = ${emacs} -l semantic/wisent/grammar -f wisent-batch-make-parser
@@ -43,6 +43,9 @@ cedetdir = ${top_srcdir}/lisp/cedet
 bovinedir = ${cedetdir}/semantic/bovine
 wisentdir = ${cedetdir}/semantic/wisent
 
+grammar_bovine = ${bovinedir}/grammar.el
+grammar_wisent = ${wisentdir}/grammar.el
+
 BOVINE = \
 	${bovinedir}/c-by.el \
 	${bovinedir}/make-by.el \
@@ -68,36 +71,33 @@ bovine: ${BOVINE}
 
 wisent: ${WISENT}
 
-## TODO add dependencies on semantic/{bovine,wisent}/grammar.el
-
 ## c-by.el, make-by.el.
-${bovinedir}/%-by.el: ${srcdir}/%.by
+${bovinedir}/%-by.el: ${srcdir}/%.by ${grammar_bovine}
 	$(AM_V_GEN)[ ! -f "$@" ] || chmod +w "$@"
 	$(AM_V_at)${make_bovine} -o "$@" $<
 
-${bovinedir}/scm-by.el: ${srcdir}/scheme.by
+${bovinedir}/scm-by.el: ${srcdir}/scheme.by ${grammar_bovine}
 	$(AM_V_GEN)[ ! -f "$@" ] || chmod +w "$@"
 	$(AM_V_at)${make_bovine} -o "$@" $<
 
 ## grammar-wy.el
-${cedetdir}/semantic/%-wy.el: ${srcdir}/%.wy
+${cedetdir}/semantic/%-wy.el: ${srcdir}/%.wy ${grammar_wisent}
 	$(AM_V_GEN)[ ! -f "$@" ] || chmod +w "$@"
 	$(AM_V_at)${make_wisent} -o "$@" $<
 
 ## js-wy.el, python-wy.el
-${wisentdir}/%-wy.el: ${srcdir}/%.wy
+${wisentdir}/%-wy.el: ${srcdir}/%.wy ${grammar_wisent}
 	$(AM_V_GEN)[ ! -f "$@" ] || chmod +w "$@"
 	$(AM_V_at)${make_wisent} -o "$@" $<
 
-${wisentdir}/javat-wy.el: ${srcdir}/java-tags.wy
+${wisentdir}/javat-wy.el: ${srcdir}/java-tags.wy ${grammar_wisent}
 	$(AM_V_GEN)[ ! -f "$@" ] || chmod +w "$@"
 	$(AM_V_at)${make_wisent} -o "$@" $<
 
-${cedetdir}/srecode/srt-wy.el: ${srcdir}/srecode-template.wy
+${cedetdir}/srecode/srt-wy.el: ${srcdir}/srecode-template.wy ${grammar_wisent}
 	$(AM_V_GEN)[ ! -f "$@" ] || chmod +w "$@"
 	$(AM_V_at)${make_wisent} -o "$@" $<
 
-
 .PHONY: distclean bootstrap-clean maintainer-clean extraclean gen-clean
 
 distclean:

lisp/cedet/semantic/bovine/grammar.el

@@ -475,7 +475,7 @@ Menu items are appended to the common grammar menu.")
 	     (with-current-buffer (find-file-noselect infile)
 	       (setq infile buffer-file-name)
 	       (if outdir (setq default-directory outdir))
-	       (semantic-grammar-create-package nil t))
+	       (semantic-grammar-create-package t t))
 	   (error (message "%s" (error-message-string err)) nil)))
 	lang filename copyright-end)
     (when (and packagename

lisp/cedet/semantic/wisent/grammar.el

@@ -477,7 +477,7 @@ Menu items are appended to the common grammar menu.")
 	 (condition-case err
 	     (with-current-buffer (find-file-noselect infile)
 	       (if outdir (setq default-directory outdir))
-	       (semantic-grammar-create-package nil t))
+	       (semantic-grammar-create-package t t))
 	   (error (message "%s" (error-message-string err)) nil)))
 	output-data)
     (when (setq output-data (assoc packagename wisent-make-parsers--parser-file-name))