gettext: avoid obsolete macro AM_PROG_MKDIR_P It is obsolete and is planned to be removed from Automake 1.14; see <http://lists.gnu.org/archive/html/automake/2012-12/msg00029.html>. * build-aux/po/Makefile.in.in (install-data, install-data-yes) (installdirs-data, installdirs-data-yes): Use $(MKDIR_P), not $(mkdir_p). * m4/intl.m4 (AM_INTL_SUBDIR): * m4/po.m4 (AM_PO_SUBDIRS): Require AC_PROG_MKDIR_P, not AM_PROG_MKDIR_P.