View the most recent changes for the libb64 port at: libb64.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for libb64.
The raw portfile for libb64 1.1 is located here:
http://libb64.darwinports.com/dports/mail/libb64/Portfile
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Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/libb64

The libb64 Portfile 30236 2007-10-22 23:15:10Z jmpp macports.org $

PortSystem 1.0

Name: libb64
Version: 1.1
Category: mail
Platform: darwin
Maintainers: nomaintainer
Description: C library for fast encoding/decoding into and from base64
Long Description: libb64 is a library of ANSI C routines for fast encoding/decoding data into and from a base64-encoded format. C++ wrappers are included, as well as the source code for standalone encoding and decoding executables.

Homepage: http://libb64.sourceforge.net/
Master Sites: sourceforge
distname ${distname}.src
Checksums: md5 bd4e95e62f2dd8a220503e0bf5a2dfad

worksrcdir ${name}

use_configure no

destroot {
xinstall -m 755 -W ${worksrcpath}/src b64dec b64enc decoder encoder ${destroot}${prefix}/bin
xinstall -m 644 ${worksrcpath}/src/libb64.a ${destroot}${prefix}/lib
file copy ${worksrcpath}/include/b64 ${destroot}${prefix}/include
}

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/libb64
%  sudo port install libb64  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching libb64
--->  Verifying checksum for libb64
--->  Extracting libb64
--->  Configuring libb64
--->  Building libb64 with target all

--->  Staging libb64 into destroot

--->  Installing libb64

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using libb64 with these commands:

%  man libb64
%  apropos libb64
%  which libb64
%  locate libb64

 Where to find more information: