gnutls @3.6.16_0+universal - Failed to configure gnutls: autoreconf failure

[FaradayLight (Faraday Light)]

An attempt to install gnutls failed with configure error:

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: /opt/local/bin/aclocal --force -I m4 -I src/libopts/m4 -I src/gl/m4 -I lib/unistring/m4 --install
aclocal: overwriting 'm4/pkg.m4' with '/opt/local/share/aclocal/pkg.m4'
autoreconf: configure.ac: tracing
autoreconf: running: /opt/local/bin/glibtoolize --copy --force
glibtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'build-aux'.
glibtoolize: copying file 'build-aux/ltmain.sh'
glibtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
glibtoolize: copying file 'm4/libtool.m4'
glibtoolize: copying file 'm4/ltoptions.m4'
glibtoolize: copying file 'm4/ltsugar.m4'
glibtoolize: copying file 'm4/ltversion.m4'
glibtoolize: copying file 'm4/lt~obsolete.m4'
autoreconf: configure.ac: not using Intltool
autoreconf: running: /opt/local/bin/gtkdocize --copy
Can't exec "/opt/local/bin/gtkdocize": No such file or directory at /opt/local/share/autoconf/Autom4te/FileUtils.pm line 293.
autoreconf: error: /opt/local/bin/gtkdocize failed with exit status: 2
Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_gnutls/gnutls/work/gnutls-3.6.16-arm64" && autoreconf --install --verbose --force 
Exit code: 2
Error: Failed to configure gnutls: autoreconf failure: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_gnutls/gnutls/main.log for details.
Error: Follow https://guide.macports.org/#project.tickets if you believe there is a bug.
Error: Processing of port gnutls failed

The error arises after performing the following:

sudo port clean gnutls
sudo port -v install gnutls

An attempt at installing gnutls was made after removing all ports to re-check the issue with M4 raised in ticket: ​https://trac.macports.org/ticket/62991

M4 was manually patch and installed as per steps outlined in the above ticket, but still fails the port test phase (see62991).

The following warning was reported while installing the dependancies for gnutls:

--->  Fetching archive for libtasn1
--->  Attempting to fetch libtasn1-4.17.0_0+universal.darwin_20.arm64-x86_64.tbz2 from https://packages.macports.org/libtasn1
--->  Attempting to fetch libtasn1-4.17.0_0+universal.darwin_20.arm64-x86_64.tbz2 from https://mse.uk.packages.macports.org/libtasn1
--->  Attempting to fetch libtasn1-4.17.0_0+universal.darwin_20.arm64-x86_64.tbz2 from https://fra.de.packages.macports.org/libtasn1
--->  Fetching distfiles for libtasn1
--->  Attempting to fetch libtasn1-4.17.0.tar.gz from https://distfiles.macports.org/libtasn1
--->  Verifying checksums for libtasn1
--->  Extracting libtasn1
--->  Configuring libtasn1
Warning: Configuration logfiles contain indications of -Wimplicit-function-declaration; check that features were not accidentally disabled:
  MIN: found in libtasn1-4.17.0/config.log
--->  Building libtasn1
--->  Staging libtasn1 into destroot                     
--->  Installing libtasn1 @4.17.0_0+universal
--->  Activating libtasn1 @4.17.0_0+universal
--->  Cleaning libtasn1

Please see attached main_gnutls.log