View the most recent changes for the grads2 port at: grads2.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for grads2.
The raw portfile for grads2 2.0.a5.oga.5 is located here:
http://grads2.darwinports.com/dports/science/grads2/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/grads2

# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
The grads2 Portfile 55498 2009-08-12 08:26:02Z takeshi macports.org $

PortSystem 1.0

Name: grads2
Version: 2.0.a5.oga.5
Revision: 1
Platform: darwin
Maintainers: takeshi
Category: science
Description: interactive visualization tool for earth science data
Master Sites: sourceforge:opengrads
distname grads-${version}-bundle
worksrcdir grads-${version}
Checksums: md5 16ea4c90f6e42be18fa49693ddc5d810 sha1 dcae4bf6744a69a5d7bfa020dc087d5f12fc67ae rmd160 9fcaf9aadb5488f5597bf80799c68fb3f50104ff
Homepage: http://www.opengrads.org/
Long Description: The Grid Analysis and Display System (GrADS) is an interactive desktop tool that is used for easy access, manipulation, and visualization of earth science data. The format of the data may be either binary, GRIB, NetCDF, or HDF-SDS (Scientific Data Sets). GrADS has been implemented worldwide on a variety of commonly used operating systems and is freely distributed over the Internet.

depends_lib port:libwww port:readline port:rx port:netcdf port:udunits port:hdf4 port:gd2 port:libnc-dap port:gadap port:wgrib2 port:curl port:libgeotiff
depends_build port:pkgconfig

Patch Files: patch-src-Makefile.in.diff

pre-configure {
reinplace "s|lwww|lwwwcore|g" ${worksrcpath}/configure
}

configure.env-append SUPPLIBS="${prefix}"
configure.args --with-readline --enable-dyn-supplibs --with-nc --with-dap --with-netcdf=${prefix} --with-geotiff --with-x --with-printim --without-gui --program-suffix="-2"
configure.cppflags -I${prefix}/include
configure.ldflags -L${prefix}/lib

pre-build {
reinplace "s|libwww.a|libwwwcore.a|g" ${worksrcpath}/src/Makefile
reinplace "s|\$(supp_lib_dir)/inst.o| |g" ${worksrcpath}/src/Makefile
}

test.run yes
test.target check

post-destroot {
xinstall -d -m 755 ${destroot}${prefix}/share/${name}
eval xinstall -m 644 [glob -directory ${worksrcpath}/data *.dat *res] ${destroot}${prefix}/share/${name}
xinstall -d -m 755 ${destroot}${prefix}/share/${name}/tables
eval xinstall -m 644 [glob -directory ${worksrcpath}/data/tables *] ${destroot}${prefix}/share/${name}/tables
}

platform darwin 8 {
depends_lib-delete libnc-dap
configure.args-delete --with-dap
configure.args-append --without-dap
}

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/grads2
%  sudo port install grads2  
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 grads2
--->  Verifying checksum for grads2
--->  Extracting grads2
--->  Configuring grads2
--->  Building grads2 with target all

--->  Staging grads2 into destroot

--->  Installing grads2

- 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 grads2 with these commands:

%  man grads2
%  apropos grads2
%  which grads2
%  locate grads2

 Where to find more information: