Merge branch 'maint'

* maint:
  vala tests: source test-init.sh, not ./defs
  tests: fix a spurious typo-related failure
  tests: remove spurious leftover use of 'Exit'
  tests: can check our recipes avoid trailing backslashes
  vala: improve comments to AM_PROG_VALAC
  news: update w.r.t. recent vala changes
  vala: if no proper compiler found, set $(VALAC) to 'valac'
  vala: AM_PROG_VALAC should not produce an error for tool-old valac
  docs: document recent changes to AM_PROG_VALAC
  tests: enhance tests on AM_PROG_VALAC
  vala: style fixes in vala.m4
  vala: add action arguments, for when no proper vala compiler is found

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --cc .gitignore
Simple merge

diff --cc Makefile.am
index ddf71b3,45bf2fc..065500f
--- 1/Makefile.am
--- 2/Makefile.am
+++ b/Makefile.am
@@@ -484,8 -497,19 +497,19 @@@ check-tests-syntax
  check-local: check-tests-syntax
  .PHONY: check-tests-syntax
  
+ # Recipes with a trailing backslash character (possibly followed by
+ # blank characters only) can cause spurious syntax errors with at
+ # least older bash versions (e.g., bash 2.05b), and can be potentially
+ # be unportable to other weaker shells.  Run the testsuite in a way
+ # that helps catching such problems in Automake-generated recipes.
+ # See automake bug#10436.
+ check-no-trailing-backslash-in-recipes:
+       $(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) check \
+         CONFIG_SHELL='$(abs_top_builddir)/t/ax/shell-no-trail-bslash'
+ .PHONY: check-no-trailing-backslash-in-recipes
+ 
  ## Checking the list of tests.
 -test_subdirs = t t/pm
 +test_subdirs = t t/pm contrib/t
  include $(srcdir)/t/CheckListOfTests.am
  
  # Run the testsuite with the installed aclocal and automake.

diff --cc NEWS
Simple merge

diff --cc doc/automake.texi
Simple merge

diff --cc t/list-of-tests.mk
Simple merge