Index: Makefile.am
===================================================================
--- Makefile.am	(révision 6166)
+++ Makefile.am	(copie de travail)
@@ -83,6 +83,11 @@
 long-checks:
 	cd tp/tests && $(MAKE) long-checks
 
+check-dtd-changes:
+	$(MKDIR_P) tp/maintain
+	(cd tp/maintain && wget -N http://www.gnu.org/software/texinfo/dtd/$(TEXINFO_DTD_VERSION)/texinfo.dtd)
+	-diff $(DIFF_U_OPTION) tp/maintain/texinfo.dtd $(srcdir)/util/texinfo.dtd
+
 # From coreutils.
 # Verify that all source files using _() are listed in po/POTFILES.in.
 # Run this before making pretests, as well as official releases, so that