aom - Failed to fetch aom: Git clone failed

[RobK88]

I am unable to upgrade aom on my Mac running Lion. Looks like a SSL certificate problem.

sudo port -v upgrade outdated
--->  Computing dependencies for aom.
--->  Fetching distfiles for aom
Cloning into '/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_aom/aom/work/aom-3.0.0'...
fatal: unable to access 'https://aomedia.googlesource.com/aom.git/': SSL certificate problem: self signed certificate in certificate chain
Command failed: /opt/local/bin/git clone --progress https://aomedia.googlesource.com/aom.git /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_aom/aom/work/aom-3.0.0 2>&1
Exit code: 128
Error: Failed to fetch aom: Git clone failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_aom/aom/main.log for details.
Error: Problem while installing aom
Error: Follow https://guide.macports.org/#project.tickets to report a bug.