MongoDB shell is crashing since v8 port was upgraded

[p.perroud@…]

Context: MongoDB port running on MacOS X 10.8.4

First - to make sure mongodb server is actually running:

$ ps -afx | grep mongo

    0    61     1   0 11:24AM ??         0:00.04 /opt/local/bin/daemondo --label=mongodb --start-cmd sudo -u _mongo /opt/local/bin/mongod --dbpath /opt/local/var/db/mongodb --logpath /opt/local/var/log/mongodb/mongodb.log --logappend ; --pid=exec
    0    67    61   0 11:25AM ??         0:00.01 sudo -u _mongo /opt/local/bin/mongod --dbpath /opt/local/var/db/mongodb --logpath /opt/local/var/log/mongodb/mongodb.log --logappend
  504   115    67   0 11:25AM ??         0:51.98 /opt/local/bin/mongod --dbpath /opt/local/var/db/mongodb --logpath /opt/local/var/log/mongodb/mongodb.log --logappend
  501   862   856   0  3:17PM ttys000    0:00.00 grep mongo

Next - MongoDB shell is crashing on initialization:

$ mongo

MongoDB shell version: 2.4.6
dyld: lazy symbol binding failed: Symbol not found: __ZN2v87Context3NewEPNS_22ExtensionConfigurationENS_6HandleINS_14ObjectTemplateEEENS3_INS_5ValueEEE
  Referenced from: /opt/local/bin/mongo
  Expected in: /opt/local/lib/libv8.dylib

dyld: Symbol not found: __ZN2v87Context3NewEPNS_22ExtensionConfigurationENS_6HandleINS_14ObjectTemplateEEENS3_INS_5ValueEEE
  Referenced from: /opt/local/bin/mongo
  Expected in: /opt/local/lib/libv8.dylib

Trace/BPT trap: 5

Important note: this shell was working fine until v8 port was upgraded a few days ago