View the most recent changes for the gmp-ecm port at: gmp-ecm.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for gmp-ecm.
The raw portfile for gmp-ecm 6.2.3 is located here:
http://gmp-ecm.darwinports.com/dports/math/gmp-ecm/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/gmp-ecm

The gmp-ecm Portfile 57375 2009-09-10 08:16:41Z ryandesign macports.org $

PortSystem 1.0

Name: gmp-ecm
Version: 6.2.3
Category: math
Platform: darwin
Maintainers: vinc17
Description: Factor integers using the Elliptic Curve Method
Long Description: Free implementation of the Elliptic Curve Method (ECM) for integer factorization.
Homepage: http://gforge.inria.fr/projects/ecm/
Master Sites: http://gforge.inria.fr/frs/download.php/22124/
distname ecm-${version}
depends_lib port:gmp
Checksums: md5 d8cca3784857aabfea9b3c9b0926c593 sha1 b97d1b1b38de1a4587caa5c84d7387fc13753b3b rmd160 bde2498f56f4601fc8b9a03fd3b1029bf553f5b7

post-destroot {
set docdir ${destroot}${prefix}/share/doc/${name}
file mkdir ${docdir}
xinstall -m 644 -v -W ${worksrcpath} AUTHORS COPYING COPYING.LIB NEWS README README.lib TODO ${docdir}
set mandir ${destroot}${prefix}/share/man/man1
file mkdir ${mandir}
xinstall -m 644 -v -W ${worksrcpath} ecm.1 ${mandir}
}

livecheck.type regex
livecheck.url ${homepage}
livecheck.regex GMP-ECM (\[0-9.\]+)

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

--->  Staging gmp-ecm into destroot

--->  Installing gmp-ecm

- 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 gmp-ecm with these commands:

%  man gmp-ecm
%  apropos gmp-ecm
%  which gmp-ecm
%  locate gmp-ecm

 Where to find more information: