Merge branch 'maint' into msvc

* maint:
  tests: drop unnecessary requirement in 'subpkg.test'
  gitlog-to-changelog: new auxiliary script, synced from gnulib
  docs: "aclocal --install -I /abs/dir" actually copies files
  docs: fix node names for automake and aclocal invocations

diff --cc ChangeLog
Simple merge

diff --cc NEWS
Simple merge

diff --cc doc/automake.texi
Simple merge

diff --cc lib/Makefile.am
index 5bdc02e,4102828..f4acc8a
--- 1/lib/Makefile.am
--- 2/lib/Makefile.am
+++ b/lib/Makefile.am
@@@ -29,9 -28,9 +29,9 @@@ dist_pkgvdata_DATA = COPYING INSTALL te
  scriptdir = $(pkgvdatadir)
  dist_script_DATA = config.guess config.sub install-sh mdate-sh missing \
    mkinstalldirs elisp-comp ylwrap acinstall depcomp compile py-compile \
 -  symlink-tree
 +  symlink-tree ar-lib
  
- EXTRA_DIST = gnupload
+ EXTRA_DIST = gnupload gitlog-to-changelog
  
  install-data-hook:
        @$(POST_INSTALL)

diff --cc tests/Makefile.am
Simple merge

diff --cc tests/subpkg.test
Simple merge