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LIBICAL -- An implementation of basic iCAL protocols

The code and datafiles in this distribution are licensed under the
Mozilla Public License. See http://www.mozilla.org/NPL/MPL-1.0.html
for a copy of the license. Alternately, you may use libical under the
terms of the GNU Library General Public License. See
http://www.fsf.org/copyleft/lesser.html for a copy of the LGPL.

This dual license ensures that the library can be incorporated into
both proprietary code and GPL'd programs, and will benefit from
improvements made by programmers in both realms. I will only accept
changes into my version of the library if they are similarly

Portions of this distribution are (C) Copyright 1996 Apple Computer,
Inc., AT&T Corp., International Business Machines Corporation and
Siemens Rolm Communications Inc. See src/libicalvcal/README.TXT for

Portions of this distribution are Copyright (c) 1997 Theo de
Raadt. See the header for src/libical/vsnprintf.c for the full
copyright statement.

This code is under active development. If you would like to contribute
to the project, you can contact me, Eric Busboom, at
eric@softwarestudio.org. The project has a webpage at


and a mailing list that you can join by sending the following mail:

	To: minimalist@softwarestudio.org
	Subject: subscribe libical

Building the library

This distribution is developed on Red Hat Linux 6.0 and usually
compiles on SunOS 5.6 and FreeBSD 2.27. I have reports of success of
previous version on MacOS ( with CodeWarrior ) and on UnixWare, but I
don't know about any other systems.

The library is configured with automake. IF YOU ARE BUILDING THE
SOURCE FROM A TARBALL, From the root directory, run


To build all of the Makefiles for your system. If you will be
installing the library, you may want to use the --prefix flag to set
the directory where the library and header files will be installed.

	./configure --prefix=/proj/local/

If configure runs fine, run "make" to build the library and 
"make install" to install it.

Although the distribution uses libtool to generate libraries, it has
shared libraries turned off by default. To create and install shared
libraries use:

	./configure --enable-shared

IF YOU ARE BUILDING FROM CVS, there will be no configure file until
you create one with autogen.sh. YOu can pass configure parameters to
autogen.sh on the command line.

The current version of libical focuses on creating and
manipulating iCal objects. With it, you can parse text representations
of iCal components, add and remove sub-components, properties,
parameters and values, and print the components back out as strings. 

Notes for Libical Developers

If you don't want to use gcc as the compiler, and you got the sources
from CVS, you should set the CC variable to the path to the compiler
and run "automake --include-deps" to keep automake from using
gcc-specific automatic dependancy tracking.

        > CC=/pkg/SUNWspro/bin/cc; export CC
        > automake --include-deps
        > ./configure --prefix=/proj/local/
        > make

You will not need to re-run automake unless you got the sources from CVS. 

Using the Library

There is rudimentary, unfinished documentation in the /doc directory,
and annotated examples in /examples.

Eric Busboom