compat: reinstate AM_PROG_MKDIR_P, for gettext

Do not remove AM_PROG_MKDIR_P just yet.

gettext (latest from git) still AC_REQUIRE's AM_PROG_MKDIR_P via its
intl.m4 and po.m4 files, which are pulled into *many* projects.

When I try to build one of those projects (coreutils) using the latest
from automake.git/master, I see this failure:

    $ aclocal -I m4
    configure.ac:477: warning: AM_PROG_MKDIR_P is m4_require'd \
      but not m4_defun'd
    m4/po.m4:23: AM_PO_SUBDIRS is expanded from...
    m4/gettext.m4:57: AM_GNU_GETTEXT is expanded from...
    configure.ac:477: the top level

That is because AM_PROG_MKDIR_P was removed (via commit
v1.12-20-g8a1c64f) in preparation for the next release of automake.

* NEWS: Remove the paragraph that announced the removal of
AM_PROG_MKDIR_P.
* Makefile.am (dist_automake_ac_DATA): Add m4/mkdirp.m4.
* m4/mkdirp.m4: Re-add file.
* t/mkdirp-deprecation.sh: Likewise.
* t/list-of-tests.mk: Add it.
* automake.in: Restore removed code, and adjust comments, s/1.13/1.14/
to reflect new plan for removal.
* doc/automake.texi (Obsolete Macros): Restore the section, but
now with only one entry: the one for AM_PROG_MKDIR_P.

1 files changed, 48 insertions, 0 deletions

diff --git a/t/mkdirp-deprecation.sh b/t/mkdirp-deprecation.sh
new file mode 100755
index 000000000..8482dea36
--- /dev/null
+++ b/t/mkdirp-deprecation.sh
@@ -0,0 +1,48 @@
+#! /bin/sh
+# Copyright (C) 2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Check that the AM_PROG_MKDIR_P macro is deprecated.  It will be
+# be removed in the next major Automake release.
+
+. ./defs || exit 1
+
+echo AM_PROG_MKDIR_P >> configure.ac
+: > Makefile.am
+
+grep_err ()
+{
+  loc='^configure.ac:4:'
+  grep "$loc.*AM_PROG_MKDIR_P.*deprecated" stderr
+  grep "$loc.* use .*AC_PROG_MKDIR_P" stderr
+  grep "$loc.* use '\$(MKDIR_P)' instead of '\$(mkdir_p)'.*Makefile" stderr
+}
+
+$ACLOCAL
+
+$AUTOCONF -Werror -Wobsolete 2>stderr && { cat stderr >&2; exit 1; }
+cat stderr >&2
+grep_err
+
+$AUTOCONF -Werror -Wno-obsolete
+
+#AUTOMAKE_fails
+#grep_err
+AUTOMAKE_fails --verbose -Wnone -Wobsolete
+grep_err
+
+$AUTOMAKE -Wno-obsolete
+
+: