Need to update autotools

[morevnaproject]

Synfig-core build fails with the following error

 ------ synfigcore-master clean build
 ------ synfigcore-master build

running libtooize (/build/packet/linux-64/synfigcore-master/envdeps_native/bin/libtoolize)...
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'config'.
libtoolize: copying file 'config/compile'
libtoolize: copying file 'config/config.guess'
libtoolize: copying file 'config/config.sub'
libtoolize: copying file 'config/depcomp'
libtoolize: copying file 'config/install-sh'
libtoolize: copying file 'config/missing'
libtoolize: copying file 'config/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltargz.m4'
libtoolize: copying file 'm4/ltdl.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
libtoolize: putting libltdl files in LT_CONFIG_LTDL_DIR, 'libltdl'.
libtoolize: copying file 'libltdl/COPYING.LIB'
libtoolize: creating file 'libltdl/Makefile.am'
libtoolize: copying file 'libltdl/README'
libtoolize: creating file 'libltdl/configure.ac'
libtoolize: copying file 'libltdl/aclocal.m4'
libtoolize: creating file 'libltdl/Makefile.in'
libtoolize: copying file 'libltdl/config-h.in'
libtoolize: creating file 'libltdl/configure'
libtoolize: copying file 'libltdl/libltdl/lt__alloc.h'
libtoolize: copying file 'libltdl/libltdl/lt__argz_.h'
libtoolize: copying file 'libltdl/libltdl/lt__dirent.h'
libtoolize: copying file 'libltdl/libltdl/lt__glibc.h'
libtoolize: copying file 'libltdl/libltdl/lt__private.h'
libtoolize: copying file 'libltdl/libltdl/lt__strl.h'
libtoolize: copying file 'libltdl/libltdl/lt_dlloader.h'
libtoolize: copying file 'libltdl/libltdl/lt_error.h'
libtoolize: copying file 'libltdl/libltdl/lt_system.h'
libtoolize: copying file 'libltdl/libltdl/slist.h'
libtoolize: copying file 'libltdl/loaders/dld_link.c'
libtoolize: copying file 'libltdl/loaders/dlopen.c'
libtoolize: copying file 'libltdl/loaders/dyld.c'
libtoolize: copying file 'libltdl/loaders/load_add_on.c'
libtoolize: copying file 'libltdl/loaders/loadlibrary.c'
libtoolize: copying file 'libltdl/loaders/preopen.c'
libtoolize: copying file 'libltdl/loaders/shl_load.c'
libtoolize: copying file 'libltdl/lt__alloc.c'
libtoolize: copying file 'libltdl/lt__argz.c'
libtoolize: copying file 'libltdl/lt__dirent.c'
libtoolize: copying file 'libltdl/lt__strl.c'
libtoolize: copying file 'libltdl/lt_dlloader.c'
libtoolize: copying file 'libltdl/lt_error.c'
libtoolize: copying file 'libltdl/ltdl.c'
libtoolize: copying file 'libltdl/ltdl.h'
libtoolize: copying file 'libltdl/slist.c'
running autopoint...
Copying file ABOUT-NLS
Copying file config/config.rpath
Copying file m4/codeset.m4
Copying file m4/gettext.m4
Copying file m4/glibc2.m4
Copying file m4/glibc21.m4
Copying file m4/iconv.m4
Copying file m4/intdiv0.m4
Copying file m4/intmax.m4
...
libtoolize: copying file 'libltdl/loaders/shl_load.c'
libtoolize: copying file 'libltdl/lt__alloc.c'
libtoolize: copying file 'libltdl/lt__argz.c'
libtoolize: copying file 'libltdl/lt__dirent.c'
libtoolize: copying file 'libltdl/lt__strl.c'
libtoolize: copying file 'libltdl/lt_dlloader.c'
libtoolize: copying file 'libltdl/lt_error.c'
libtoolize: copying file 'libltdl/ltdl.c'
libtoolize: copying file 'libltdl/ltdl.h'
libtoolize: copying file 'libltdl/slist.c'
configure.ac:25: error: possibly undefined macro: AC_CONFIG_MACRO_DIRS
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
autoreconf: /usr/bin/autoconf failed with exit status: 1

The error happens after this commit in Synfig -
synfig/synfig@22cee5ce5692a1

Looks like we need update autotools.
See also - openvenues/libpostal#116