View the most recent changes for the gnuplot port at: gnuplot.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for gnuplot.
The raw portfile for gnuplot 4.2.5 is located here:
http://gnuplot.darwinports.com/dports/math/gnuplot/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/gnuplot

The gnuplot Portfile 60116 2009-11-02 13:30:34Z jmr macports.org $

PortSystem 1.0
PortGroup xcodeversion 1.0

Name: gnuplot
Version: 4.2.5
Category: math science
Maintainers: nomaintainer
Description: A command-driven interactive function plotting program
Long Description: Gnuplot is a command-driven interactive function plotting program. Plots any number of functions, built up of C operators, C library functions, and some things C doesn't have like **, sgn(), etc. Also support for plotting data files, to compare actual data to theoretical curves.
Platform: darwin
Homepage: http://gnuplot.sourceforge.net/
Master Sites: sourceforge
distfiles ${distname}.tar.gz ${name}.pdf
extract.only ${distname}.tar.gz
Checksums: ${distname}.tar.gz md5 85d042f8efd7aae3d9cbfd85b14d06d2 sha1 e7ad6afc1ca7b39a512a18f2dc6f2bcda9bf9128 rmd160 79ab74627d66c2eff6d69276c1556acca89ec6dd ${name}.pdf md5 0691424fd274b65eb8a8ab0dc52dbabe sha1 8926d4cb9a1e2f71f95f69fad65473889f08638f rmd160 6d92f3473b0896598436e6c993e56e5167b94af5

depends_lib port:expat port:fontconfig port:gd2 port:jpeg port:pdflib port:libiconv port:libpng port:ncurses port:readline port:xpm port:zlib

Patch Files: patch-share-LaTeX-Makefile.in

platform darwin {
depends_lib-append port:aquaterm
configure.cflags-append '-DDEFAULTTERM=\\"aqua\\"'
}

minimum_xcodeversions {9 3.1}

configure.args --with-readline=${prefix} --with-gd=${prefix} --with-pdf=${prefix} --with-png=${prefix} --with-x --enable-datastrings --enable-histograms --infodir='\${prefix}/share/info' --mandir='\${prefix}/share/man' --disable-wxwidgets

configure.ccache no

Variant: no_x11 {
depends_lib-delete port:xpm
configure.args-delete --with-x
configure.args-append --without-x
}

Variant: wxwidgets description "Enable wxWidgets front-end" {
depends_lib-append port:wxWidgets
configure.args-delete --disable-wxwidgets
configure.args-append --with-wx-config=${prefix}/bin/wx-config
}

Variant: tutorial description "Build the tutorial (requires a tex install)" {
depends_lib-append bin:tex:texlive
configure.args-delete --without-tutorial
configure.args-append --with-tutorial
}

destroot.destdir prefix=${destroot}${prefix}
post-destroot {
xinstall -d -m 0755 ${destroot}${prefix}/share/doc/${name}
xinstall -m 0644 ${distpath}/gnuplot.pdf ${destroot}${prefix}/share/doc/${name}/
}

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

--->  Staging gnuplot into destroot

--->  Installing gnuplot

- 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 gnuplot with these commands:

%  man gnuplot
%  apropos gnuplot
%  which gnuplot
%  locate gnuplot

 Where to find more information: