Output from running autoreconf:
  configure.ac:21: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:21: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:21: the top level
  configure.ac:25: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:25: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:25: the top level
  configure.ac:29: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:29: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:29: the top level
  configure.ac:35: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:35: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:35: the top level
  configure.ac:227: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:227: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:227: the top level
  configure.ac:595: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:595: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:595: the top level
  configure.ac:599: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:599: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:599: the top level
  configure.ac:603: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:603: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:603: the top level
  configure.ac:656: warning: The macro `AC_CONFIG_HEADER' is obsolete.
  configure.ac:656: You should run autoupdate.
  ./lib/autoconf/status.m4:719: AC_CONFIG_HEADER is expanded from...
  configure.ac:656: the top level
  configure.ac:659: warning: The macro `AC_HELP_STRING' is obsolete.
  configure.ac:659: You should run autoupdate.
  ./lib/autoconf/general.m4:204: AC_HELP_STRING is expanded from...
  configure.ac:659: the top level
  configure.ac:673: warning: The macro `AC_LANG_C' is obsolete.
  configure.ac:673: You should run autoupdate.
  ./lib/autoconf/c.m4:72: AC_LANG_C is expanded from...
  configure.ac:673: the top level
  configure.ac:677: warning: The macro `AC_TRY_COMPILE' is obsolete.
  configure.ac:677: You should run autoupdate.
  ./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
  lib/m4sugar/m4sh.m4:692: _AS_IF_ELSE is expanded from...
  lib/m4sugar/m4sh.m4:699: AS_IF is expanded from...
  ./lib/autoconf/general.m4:2249: AC_CACHE_VAL is expanded from...
  ./lib/autoconf/general.m4:2270: AC_CACHE_CHECK is expanded from...
  configure.ac:677: the top level
  configure.ac:730: warning: The macro `AC_TRY_LINK' is obsolete.
  configure.ac:730: You should run autoupdate.
  ./lib/autoconf/general.m4:2920: AC_TRY_LINK is expanded from...
  configure.ac:730: the top level
  configure.ac:742: warning: The macro `AC_TRY_COMPILE' is obsolete.
  configure.ac:742: You should run autoupdate.
  ./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
  lib/m4sugar/m4sh.m4:692: _AS_IF_ELSE is expanded from...
  lib/m4sugar/m4sh.m4:699: AS_IF is expanded from...
  ./lib/autoconf/general.m4:2249: AC_CACHE_VAL is expanded from...
  ./lib/autoconf/general.m4:2270: AC_CACHE_CHECK is expanded from...
  configure.ac:742: the top level
  configure.ac:754: warning: AC_OUTPUT should be used without arguments.
  configure.ac:754: You should run autoupdate.
  configure.ac:839: warning: AC_OUTPUT should be used without arguments.
  configure.ac:839: You should run autoupdate.