View the most recent changes for the nestedsums port at: nestedsums.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for nestedsums.
The raw portfile for nestedsums 1.4.9 is located here:
http://nestedsums.darwinports.com/dports/math/nestedsums/Portfile
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Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/nestedsums

The nestedsums Portfile 54602 2009-07-30 06:29:03Z toby macports.org $

PortSystem 1.0
Name: nestedsums
Version: 1.4.9
Category: math
Platform: darwin
Maintainers: gwright
Description: nestedsums library
Long Description: A Library for the Symbolic Expansion of a Class of Transcendental Functions

Homepage: http://www.fis.unipr.it/~stefanw/
Master Sites: http://wwwthep.physik.uni-mainz.de/~stefanw/download/

Checksums: md5 5859cce3c541b0fd03bcd3fdf722c7e8

depends_lib port:GiNaC

#user_notes On Tiger (10.4.x), Xcode 2.1 is required to avoid a bug
# in gcc which causes one of the tests to fail.

platform darwin 7 {
pre-fetch {
error "nesteedsums is not supported on Panther (OS X 10.3.x)."
}
}

default_variants +test
Variant: test { test.run yes
test.cmd make
test.target check
}

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

--->  Staging nestedsums into destroot

--->  Installing nestedsums

- 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 nestedsums with these commands:

%  man nestedsums
%  apropos nestedsums
%  which nestedsums
%  locate nestedsums

 Where to find more information: