With the newest gnulib, the Continuous Integration fails already in the 'bootstrap' phase [1]:
bootstrap: running: /builds/gnu-m4/ci-distcheck/gnulib/gnulib-tool --no-changelog --no-libtool --symlink --update /builds/gnu-m4/ci-distcheck/gnulib/gnulib-tool: *** minimum supported autoconf version is 2.64. Try adding AC_PREREQ([2.64]) to your configure.ac. /builds/gnu-m4/ci-distcheck/gnulib/gnulib-tool: *** Stop. I can reproduce it locally: $ ./bootstrap --skip-git --gnulib-srcdir=/GNULIB ... bootstrap: running: /GNULIB/gnulib-tool --no-changelog --no-libtool --symlink --update /GNULIB/gnulib-tool: *** minimum supported autoconf version is 2.64. Try adding AC_PREREQ([2.64]) to your configure.ac. /GNULIB/gnulib-tool: *** Stop. The attached patch fixes it. [1] https://gitlab.com/gnu-m4/ci-distcheck/-/jobs/698627302/raw
>From df29c5b764b540940e764a92400a7e6907d7fce3 Mon Sep 17 00:00:00 2001 From: Bruno Haible <[email protected]> Date: Sun, 23 Aug 2020 01:33:08 +0200 Subject: [PATCH] build: Fix bootstrap failure with the newest gnulib. * configure.ac: Require Autoconf 2.64 at least. --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index c648dd7..888a08a 100644 --- a/configure.ac +++ b/configure.ac @@ -17,7 +17,7 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. -AC_PREREQ([2.63]) +AC_PREREQ([2.64]) AC_INIT([GNU M4], m4_esyscmd([build-aux/git-version-gen .tarball-version]), [[email protected]]) AC_CONFIG_AUX_DIR([build-aux]) -- 2.7.4
