Submodule 'contrib/libudfread' (https://code.videolan.org/videolan/libudfread.git) registered for path 'contrib/libudfread'
Cloning into '/build/libbluray/src/libbluray/contrib/libudfread'...
done.
Submodule path 'contrib/libudfread': checked out 'a35513813819efadca82c4b90edbe1407b1b9e05'
autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force -I m4
autoreconf: configure.ac: tracing
autoreconf: configure.ac: creating directory build-aux
autoreconf: running: libtoolize --copy --force
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'build-aux'.
libtoolize: copying file 'build-aux/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.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'
autoreconf: configure.ac: not using Intltool
autoreconf: configure.ac: not using Gtkdoc
autoreconf: running: aclocal --force -I m4
autoreconf: running: /usr/bin/autoconf --force
configure.ac:123: warning: The macro `AC_PROG_LIBTOOL' is obsolete.
configure.ac:123: You should run autoupdate.
m4/libtool.m4:99: AC_PROG_LIBTOOL is expanded from...
configure.ac:123: the top level
configure.ac:126: warning: The macro `AC_TYPE_SIGNAL' is obsolete.
configure.ac:126: You should run autoupdate.
./lib/autoconf/types.m4:776: AC_TYPE_SIGNAL is expanded from...
configure.ac:126: the top level
autoreconf: running: /usr/bin/autoheader --force
autoreconf: running: automake --add-missing --copy --force-missing
configure.ac:122: installing 'build-aux/ar-lib'
configure.ac:120: installing 'build-aux/compile'
configure.ac:23: installing 'build-aux/config.guess'
configure.ac:23: installing 'build-aux/config.sub'
configure.ac:24: installing 'build-aux/install-sh'
configure.ac:24: installing 'build-aux/missing'
Makefile.am: installing 'build-aux/depcomp'
autoreconf: Leaving directory '.'