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Postfix Documentation
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Building Postfix on BSD systems with multiple Berkeley DB versions

Some BSD systems ship with multiple Berkeley DB implementations. Normally, Postfix builds with the default DB version that ships with the system.

To build Postfix on BSD systems with a non-default DB version, use a variant of the following commands:

% make tidy
% make makefiles CCARGS=-I/usr/include/db3 AUXLIBS=-ldb3
% make

Warning: the file format produced by Berkeley DB version 1 is not compatible with that of versions 2 and 3 (versions 2 and 3 have the same format). If you switch between DB versions, then you may have to rebuild all your Postfix DB files.

Warning: if you use Berkeley DB version 2 or later, do not enable DB 1.85 compatibility mode. Doing so would break fcntl file locking.

Warning: if you use Perl to manipulate Postfix's Berkeley DB files, then you need to use the same Berkeley DB version in Perl as in Postfix.

Postfix Documentation
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