Build fails on some Linux distributions since updating to version 3.8.9 of GnuTLS

GnuTLS commit 516f48bf increased the minimum required version of autoconf from 2.64 to 2.71, which causes the daemon build to fail on old Linux distributions such as Debian 11 and Ubuntu 20.04.

mkdir -p -- /jami/work/daemon/contrib/x86_64-linux-gnu/share/aclocal && cd gnutls && autoreconf -fiv -I/jami/work/daemon/contrib/x86_64-linux-gnu/share/aclocal
autoreconf: Entering directory `.'
autoreconf: running: autopoint --force
autopoint: using AM_GNU_GETTEXT_REQUIRE_VERSION instead of AM_GNU_GETTEXT_VERSION
Copying file ABOUT-NLS
Copying file build-aux/config.rpath
Copying file m4/codeset.m4
Copying file m4/extern-inline.m4
Copying file m4/fcntl-o.m4
Copying file m4/glibc2.m4
Copying file m4/glibc21.m4
Copying file m4/intdiv0.m4
Copying file m4/intl.m4
Copying file m4/intldir.m4
Copying file m4/intlmacosx.m4
Copying file m4/intmax.m4
Copying file m4/inttypes-pri.m4
Copying file m4/inttypes_h.m4
Copying file m4/lcmessage.m4
Copying file m4/lib-ld.m4
Copying file m4/lib-link.m4
Copying file m4/lib-prefix.m4
Copying file m4/lock.m4
Copying file m4/longlong.m4
Copying file m4/printf-posix.m4
Copying file m4/size_max.m4
Copying file m4/stdint_h.m4
Copying file m4/threadlib.m4
Copying file m4/uintmax_t.m4
Copying file m4/visibility.m4
Copying file m4/wchar_t.m4
Copying file m4/wint_t.m4
Copying file m4/xsize.m4
Copying file po/Makefile.in.in
Copying file po/Makevars.template
Copying file po/Rules-quot
Copying file po/en@boldquot.header
Copying file po/en@quot.header
Copying file po/insert-header.sin
Copying file po/remove-potcdate.sin
autoreconf: running: aclocal -I /jami/work/daemon/contrib/x86_64-linux-gnu/share/aclocal --force -I m4 -I src/gl/m4 -I lib/unistring/m4 --install
configure.ac:21: error: Autoconf version 2.71 or higher is required
configure.ac:21: the top level
autom4te: /usr/bin/m4 failed with exit status: 63
aclocal: error: echo failed with exit status: 63
autoreconf: aclocal failed with exit status: 63
make[2]: *** [/jami/work/daemon/contrib/src/gnutls/rules.mak:64: .gnutls] Error 63

added build packaging platformlinux sprintto review labels

assigned to @ffauteux-chapleau

There was an additional issue on Ubuntu 20.04 and snap due to the use of AM_GNU_GETTEXT in GnuTLS's configure.ac, which generated "possibly undefined macro" errors. Cf. https://groups.google.com/g/linux.debian.bugs.dist/c/0QbEu6KlTck and https://sourceware.org/bugzilla/show_bug.cgi?id=30051

added sprintdone label and removed sprintto review label

closed

mentioned in commit 597cde8d