View the most recent changes for the libid3tag port at: libid3tag.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for libid3tag.
The raw portfile for libid3tag 0.15.1b is located here:
http://libid3tag.darwinports.com/dports/audio/libid3tag/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/libid3tag

# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:filetype=tcl:et:sw=4:ts=4:sts=4
The libid3tag Portfile 57375 2009-09-10 08:16:41Z ryandesign macports.org $

PortSystem 1.0

Name: libid3tag
Version: 0.15.1b
Category: audio
Maintainers: nomaintainer
Description: id3 tag manipulation library
Long Description: libid3tag is a library for reading and writing ID3 tags, bothID3v1 and the various versions of ID3v2.
Platform: darwin freebsd
Homepage: http://www.underbit.com/products/mad/
Master Sites: ftp://ftp.mars.org/pub/mpeg/ sourceforge:mad
Checksums: sha1 4d867e8a8436e73cd7762fe0e85958e35f1e4306
depends_lib port:zlib

post-configure {
if {[variant_isset universal]} {
reinplace "s|CC -dynamiclib|CC -dynamiclib ${configure.universal_ldflags}|g" ${worksrcpath}/libtool
}
}

livecheck.type regex
livecheck.url ftp://ftp.mars.org/pub/mpeg/
livecheck.regex "${name}-(\\d+(?:\\.\\d+)*\[a-z\])${extract.suffix}"

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/libid3tag
%  sudo port install libid3tag  
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 libid3tag
--->  Verifying checksum for libid3tag
--->  Extracting libid3tag
--->  Configuring libid3tag
--->  Building libid3tag with target all

--->  Staging libid3tag into destroot

--->  Installing libid3tag

- 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 libid3tag with these commands:

%  man libid3tag
%  apropos libid3tag
%  which libid3tag
%  locate libid3tag

 Where to find more information: