Regenerate texi-from-org if ox-texinfo.el changes

* doc/misc/Makefile.in (top_srcdir): New, set by configure.
(emacs): Set load-prefer-newer.
(org_template): Make output depend on ox-texinfo.el.

doc/misc/Makefile.in

@@ -22,7 +22,7 @@ SHELL = @SHELL@
 # Where to find the source code.  $(srcdir) will be the doc/misc subdirectory
 # of the source tree.  This is set by configure's '--srcdir' option.
 srcdir=@srcdir@
-
+top_srcdir = @top_srcdir@
 top_builddir = @top_builddir@
 
 ## Where the output files go.
@@ -235,14 +235,14 @@ ${buildinfodir}/tramp.info tramp.html: ${srcdir}/trampver.texi
 
 abs_top_builddir = @abs_top_builddir@
 EMACS = ${abs_top_builddir}/src/emacs
-emacs = "${EMACS}" -batch --no-site-file --no-site-lisp
+emacs = "${EMACS}" -batch --no-site-file --no-site-lisp --eval '(setq load-prefer-newer t)'
 
 # Generated .texi files go in srcdir so they can be included in the
 # release tarfile along with the others.
 # Work in srcdir (and use abs_top_builddir) so that +setupfile and
 # things like org-setup's "version" macro work.  Sigh.
 define org_template
- $(1:.org=.texi): $(1)
+ $(1:.org=.texi): $(1) ${top_srcdir}/lisp/org/ox-texinfo.el
 	$${AM_V_GEN}cd "$${srcdir}" && $${emacs} -l ox-texinfo \
 	  -f org-texinfo-export-to-texinfo-batch $$(notdir $$<) $$(notdir $$@)
 endef