Apache Portable Runtime Utility Library README

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   The Apache Portable Runtime Utility Library provides a predictable

   and consistent interface to underlying client library interfaces.

   This API assures predictable if not identical behavior regardless

   of which libraries are available on a given platform.

   APR and its companion libraries are implemented entirely in C

   and provide a common programming interface across a wide variety

   of operating system platforms without sacrificing performance.

   Currently supported platforms include:

     UNIX variants

     Windows

     Netware

     Mac OS X

     OS/2

   To give a brief overview, the primary core

   subsystems of APR-util 1.3 include the following:

     Hashing and UUID services

     Multiple SQL DBD client interfaces

     Multiple flat-database DBM client interfaces

     Typesafe function Hooks abstraction

     LDAP SSL connections for a variety of LDAP toolkits   

     MemCache interface

     Date parsing rourtines

     Resource Lists

     Thread Pools

     Queues

     Relocatable Memory Management functions

     String filename-style pattern matching

     URI Parsing

     Charset translation (iconv based)

     XML parsing (expat)

   For a more complete list, please refer to the following URLs:

     http://apr.apache.org/docs/apr-util/modules.html

   Users of APR 0.9 should be aware that migrating to the APR 1.x

   programming interfaces may require some adjustments; APR 1.x is

   neither source nor binary compatible with earlier APR 0.9 releases.

   Users of APR 1.x can expect consistent interfaces and binary backwards

   compatibility throughout the entire APR 1.x release cycle, as defined

   in our versioning rules:

     http://apr.apache.org/versioning.html

   APR is already used extensively by the Apache HTTP Server

   version 2 and the Subversion revision control system, to

   name but a few.  We list all known projects using APR at

   http://apr.apache.org/projects.html -- so please let us know

   if you find our libraries useful in your own projects!

Database Providers

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As of apr-util version 1.2.11, MySQL DBD driver is shipped as part of the

distribution.  However, to avoid licensing incompatibilities, it is not

built by default.  To enable MySQL support, use the --with-mysql option,

but be aware that the MySQL license may introduce licensing implications

for your compiled code.  Similarly, the bindings for propritary drivers

such as Oracle (--with-oracle option) must also be explicitly enabled.

On windows, selection of supported drivers is via the environment values

DBD_LIST (for mysql, oracle, pgsql, sqlite2 and/or sqlite3) 

and DBM_LIST (db and/or gdbm).  DBD odbc and DBM sdbm are unconditionally

compiled and installed, do not include these in the list.

Whenever distributing apr-util in combination with database client 

drivers, always review the license requirements of all components.

Cryptographic Software Notice

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This distribution includes cryptographic software.  The country in 

which you currently reside may have restrictions on the import, 

possession, use, and/or re-export to another country, of 

encryption software.  BEFORE using any encryption software, please 

check your country's laws, regulations and policies concerning the

import, possession, or use, and re-export of encryption software, to 

see if this is permitted.  See http://www.wassenaar.org/ for more

information.

The U.S. Government Department of Commerce, Bureau of Industry and

Security (BIS), has classified this software as Export Commodity 

Control Number (ECCN) 5D002.C.1, which includes information security

software using or performing cryptographic functions with asymmetric

algorithms.  The form and manner of this Apache Software Foundation

distribution makes it eligible for export under the License Exception

ENC Technology Software Unrestricted (TSU) exception (see the BIS 

Export Administration Regulations, Section 740.13) for both object 

code and source code.

The following provides more details on the included cryptographic

software:

  APR-Util provides an abstract interface for symmetrical cryptographic

  functions that make use of a general-purpose encryption library,

  such as OpenSSL, NSS, or the operating system's platform-specific

  facilities. This interface is known as the apr_crypto interface,

  with implementation beneath the /crypto directory.

  APR-Util provides an abstract interface for SSL encrypted LDAP (ldaps

  and STARTTLS style) connections, which can be powered by OpenLDAP, 

  Netscape LDAP SDK, Mozilla LDAP SDK, or other platform specific ldap

  interfaces.