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Berkeley DB Reference Guide: Building Berkeley DB for UNIX/POSIX systems

Building a small memory footprint library

There are a set of configuration options to assist you in building a small memory footprint library. These configuration options turn off specific functionality in the Berkeley DB library, reducing the code size. These configuration options include:

--disable-cryptography

To build Berkeley DB without support for cryptography, enter --disable-cryptography as an argument to configure.

--disable-hash

To build Berkeley DB without support for the Hash access method, enter --disable-hash as an argument to configure.

--disable-queue

To build Berkeley DB without support for the Queue access method, enter --disable-queue as an argument to configure.

--disable-replication

To build Berkeley DB without support for the database environment replication, enter --disable-replication as an argument to configure.

--disable-statistics

To build Berkeley DB without support for the statistics interfaces, enter --disable-statistics as an argument to configure.

--disable-verify

To build Berkeley DB without support for database verification, enter --disable-verify as an argument to configure.

--enable-smallbuild

Equivalent to individually specifying --disable-cryptography, --disable-hash, --disable-queue, --disable-replication, --disable-statistics and --disable-verify

The following configuration options will increase the size of the Berkeley DB library dramatically and are only useful when debugging applications:

--enable-debug

Build Berkeley DB with symbols for debugging.

--enable-debug_rop

Build Berkeley DB with read-operation logging.

--enable-debug_wop

Build Berkeley DB with write-operation logging.

--enable-diagnostic

Build Berkeley DB with run-time debugging checks.

In addition, static libraries are usually smaller than shared libraries. By default Berkeley DB will build both shared and static libraries. To build only a static library, configure Berkeley DB with the --disable-shared option.

While the size of the Berkeley DB library will vary depending on your compiler, system, and configuration options, the minimum size is expected to be around 350KB, and the maximum size to be around 600KB.

For assistance in further reducing the size of the Berkeley DB library, or in building small memory footprint libraries on other systems, please contact Sleepycat Software support.

Copyright (c) 1996-2004 Sleepycat Software, Inc. - All rights reserved.