maint: maintainer-release-check.

* tests/Makefile.am (maintainer-release-check): New.
* Makefile.am (MAINTAINER_CHECKS): New.
Support maintainer-release-check.
* README-hacking: Document it, and syntax-check too.

Makefile.am

@@ -30,16 +30,13 @@ EXTRA_DIST = .prev-version .version \
   djgpp/subpipe.c djgpp/subpipe.h djgpp/djunpack.bat \
   djgpp/fnchange.lst djgpp/testsuite.sed
 
-.PHONY: maintainer-check
-maintainer-check:
-	$(AM_V_GEN)cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
-
-.PHONY: maintainer-push-check
-maintainer-push-check:
-	$(AM_V_GEN)cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
-
-.PHONY: maintainer-xml-check
-maintainer-xml-check:
+MAINTAINER_CHECKS =				\
+  maintainer-check				\
+  maintainer-push-check				\
+  maintainer-xml-check				\
+  maintainer-release-check
+.PHONY: $(MAINTAINER_CHECKS)
+$(MAINTAINER_CHECKS):
 	$(AM_V_GEN)cd tests && $(MAKE) $(AM_MAKEFLAGS) $@
 
 # See comments in build-aux/git-version-gen.  However, we make .version depend

README-hacking

@@ -180,6 +180,9 @@ release:
 - Build with -DGNULIB_POSIXCHECK.  It suggests gnulib modules that can
   fix portability issues.
 
+- Check with `make syntax-check' if there are issues diagnosed by
+  gnulib.
+
 - run `make maintainer-check' which:
   - runs `valgrind -q bison' to run Bison under Valgrind.
   - runs the parsers under Valgrind.
@@ -197,6 +200,9 @@ release:
   Bison's included XSLT style sheets with the output of --report=all and
   --graph.
 
+- running `make maintainer-release-check' takes care of running
+  maintainer-check, maintainer-push-check and maintainer-xml-check.
+
 - Change tests/atlocal/CFLAGS to add your preferred options.  For
   instance, `-traditional' to check that the parsers are K&R.  Note
   that it does not make sense for glr.c, which should be ANSI,

tests/Makefile.am

@@ -100,3 +100,6 @@ maintainer-push-check:
 .PHONY: maintainer-xml-check
 maintainer-xml-check:
 	BISON_TEST_XML=1 $(MAKE) $(AM_MAKEFLAGS) maintainer-check
+
+.PHONY: maintainer-release-check
+maintainer-release-check: maintainer-check maintainer-push-check maintainer-xml-check