gnutls: patch failure

[mf2k (Frank Schima)]

$ port outdated 
The following installed ports are outdated:
gnutls                         3.6.13_1 < 3.6.14_0       

$ sudo port upgrade outdated 
Warning: cltversion: The Command Line Tools are installed, but MacPorts cannot determine the version.
Warning: cltversion: For a possible fix, please see: https://trac.macports.org/wiki/ProblemHotlist#reinstall-clt
--->  Computing dependencies for gnutls
--->  Fetching archive for gnutls
--->  Attempting to fetch gnutls-3.6.14_0+doc.darwin_19.x86_64.tbz2 from http://aus.us.packages.macports.org/macports/packages/gnutls
--->  Attempting to fetch gnutls-3.6.14_0+doc.darwin_19.x86_64.tbz2 from https://ywg.ca.packages.macports.org/mirror/macports/packages/gnutls
--->  Attempting to fetch gnutls-3.6.14_0+doc.darwin_19.x86_64.tbz2 from https://packages.macports.org/gnutls
--->  Fetching distfiles for gnutls
--->  Verifying checksums for gnutls
--->  Extracting gnutls
--->  Applying patches to gnutls
Error: Failed to patch gnutls: command execution failed
Error: See /opt/local/var/macports/logs/_opt_mports_macports-ports_devel_gnutls/gnutls/main.log for details.

Error is:

:info:patch Executing:  cd "/opt/local/var/macports/build/_opt_mports_macports-ports_devel_gnutls/gnutls/work/gnutls-3.6.14" && /usr/bin/patch -p0 < '/opt/mports/macports-ports/devel/gnutls/files/patch-configure.ac.diff'
:debug:patch system:  cd "/opt/local/var/macports/build/_opt_mports_macports-ports_devel_gnutls/gnutls/work/gnutls-3.6.14" && /usr/bin/patch -p0 < '/opt/mports/macports-ports/devel/gnutls/files/patch-configure.ac.diff'
:info:patch patching file configure.ac
:info:patch Hunk #1 FAILED at 126.
:info:patch 1 out of 1 hunk FAILED -- saving rejects to file configure.ac.rej