# Gavin Andresen
# 2011-02-28 12:48:51
# https://bitcointalk.org/index.php?topic=3958.msg56666#msg56666

The official client uses an older version of Berkeley DB (4.8, according to build-osx.txt). @p{par}

You're linking to Berkeley DB 5.1.19, so when you run your client it upgrades the bitcoin database files, which makes them incompatible with the official client. @p{brk}