View the most recent changes for the 4th port at: 4th.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for 4th.
The raw portfile for 4th 3.5d3 is located here:
http://4th.darwinports.com/dports/lang/4th/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/4th

The 4th Portfile 57586 2009-09-13 19:31:34Z mww macports.org $

PortSystem 1.0

Name: 4th
Version: 3.5d3
Category: lang
Platform: darwin
Maintainers: mww
Description: very small Forth compiler
Long Description: 4tH is a very small Forth compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports over 85% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, recursion, include files, etc.

Homepage: http://www.xs4all.nl/~thebeez/4tH/foldtree.html
Master Sites: http://www.xs4all.nl/~thebeez/4tH/
distname ${distname}-unix
Checksums: md5 83517580a3f81de043bf7667bf86e6f5 sha1 b80d65ae3f24b91602943c963ff0cacbb4aa344b rmd160 9c3a74d3d6bc16d5491205a4ef124804f71a022b
Patch Files: patch-Makefile.OSX.diff

worksrcdir ${worksrcdir}/sources

post-extract { xinstall -m 755 ${filespath}/configure ${worksrcpath} }

configure.env-append PREFIX=${prefix}
build.args -f Makefile.OSX
destroot.args -f Makefile.OSX

post-destroot {
xinstall -m 755 -d ${destroot}${prefix}/share/doc
file copy ${worksrcpath}/../documentation ${destroot}${prefix}/share/doc/${name}
file copy ${worksrcpath}/../examples ${destroot}${prefix}/share/doc/${name}/
file rename ${destroot}${prefix}/share/doc/4th/4th.1 ${destroot}${prefix}/share/man/man1/4th.1
file copy ${worksrcpath}/../lib ${destroot}${prefix}/share/${name}
}

livecheck.type regex
livecheck.url http://www.xs4all.nl/~thebeez/4tH/download.html
livecheck.regex 4th-(\[a-z0-9\\.\]+)-unix.tar.gz

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/4th
%  sudo port install 4th  
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 4th
--->  Verifying checksum for 4th
--->  Extracting 4th
--->  Configuring 4th
--->  Building 4th with target all

--->  Staging 4th into destroot

--->  Installing 4th

- 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 4th with these commands:

%  man 4th
%  apropos 4th
%  which 4th
%  locate 4th

 Where to find more information: