[MacPorts] #64470: opencv4 not installed on MacOS Catalina 10.15.7

[MacPorts]

#64470: opencv4 not installed on MacOS Catalina 10.15.7
---------------------+---------------------
 Reporter:  iglaweb  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  High     |  Milestone:
Component:  ports    |    Version:  2.7.1
 Keywords:           |       Port:  opencv4
---------------------+---------------------
 I use following command: 'sudo port install opencv4 +java'

 :info:configure Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_databases_db48/db48/work/db-4.8.30/build_unix"
 && ../dist/configure --prefix=/opt/local --enable-cxx
 --includedir=\${prefix}/include/db48 --libdir=\${prefix}/lib/db48
 --enable-java
 :info:configure Exit code: 1
 :error:configure Failed to configure db48: consult
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_databases_db48/db48/work/db-4.8.30/build_unix/config.log
 :error:configure Failed to configure db48: configure failure: command
 execution failed
 :debug:configure Error code: NONE
 :debug:configure Backtrace: configure failure: command execution failed
 :debug:configure     while executing
 :debug:configure "$procedure $targetname"
 :error:configure See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_databases_db48/db48/main.log
 for details.
 version:1

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Ticket URL: <https://trac.macports.org/ticket/64470>
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