View the most recent changes for the allegro port at: allegro.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for allegro.
The raw portfile for allegro 4.2.2 is located here:
http://allegro.darwinports.com/dports/devel/allegro/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/allegro

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

PortSystem 1.0

Name: allegro
Version: 4.2.2
Revision: 1
Description: A game programming library for C/C++ developers.
Long Description: Allegro is a game programming library for C/C++ developers distributed freely, supporting many platforms.
Maintainers: raimue openmaintainer
Category: devel games
Platform: darwin
use_parallel_build yes
Homepage: http://alleg.sourceforge.net/
Master Sites: sourceforge:alleg
Checksums: md5 87ffb1def034e0ec29a9ad4a595cda7e
Patch Files: patch-makefile.osx

configure {
system "cd ${worksrcpath} && sh fix.sh macosx"
reinplace "s|CC = gcc|CC = ${configure.cc}|" ${worksrcpath}/makefile.osx
}

# check for universal build
pre-build {
if {! [variant_isset universal]} {
build.args PREFIX=${prefix}
} else {
build.args PREFIX=${prefix} UB=1
}
}

build.target

destroot.target install install-man
destroot.args PREFIX=${prefix}

# some additional tools were build, let's install them
post-destroot {
foreach tool {colormap dat dat2c dat2s exedat grabber pack pat2dat rgbmap textconv} {
xinstall -m 0755 -W ${worksrcpath}/tools/ ${tool} ${destroot}${prefix}/bin/
}
}

livecheck.type regex
livecheck.url http://alleg.sourceforge.net/wip.html
livecheck.regex {Stable branch ([\d.]+) source releases}

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

--->  Staging allegro into destroot

--->  Installing allegro

- 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 allegro with these commands:

%  man allegro
%  apropos allegro
%  which allegro
%  locate allegro

 Where to find more information: