bootstrap fails with recent gnulib

Eric Bavier <[email protected]>
Newsgroups gmane.comp.gnu.m4.bugs
Message-ID <CY4PR1101MB2325BCF137AE3EB7720FDDE2B7740@CY4PR1101MB2325.namprd11.prod.outlook.com> 
Running ./bootstrap from the 1.4.18 release, and latest master, I get:

bootstrap: running: gnulib/gnulib-tool --no-changelog --no-libtool --symlink --update
gnulib/gnulib-tool: *** minimum supported autoconf version is 2.63. Try adding AC_PREREQ([2.63]) to your configure.ac.
gnulib/gnulib-tool: *** Stop.

According to gnulib's NEWS:

  2018-10-22  (all)           Automake >= 1.11 and Autoconf >= 2.63 are required.

Updating AC_PREREQ in configure.ac from 2.62 to 2.63 fixes.

Thanks!

Eric Bavier, Scientific Libraries | Cray, a Hewlett Packard Enterprise company
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