View the most recent changes for the i386-mingw32-binutils port at: i386-mingw32-binutils.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for i386-mingw32-binutils.
The raw portfile for i386-mingw32-binutils 2.19.1 is located here:
http://i386-mingw32-binutils.darwinports.com/dports/cross/i386-mingw32-binutils/Portfile
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The i386-mingw32-binutils Portfile 60616 2009-11-16 22:28:43Z jmr macports.org $
PortSystem 1.0

Name: i386-mingw32-binutils
Version: 2.19.1
Maintainers: landonf
Description: Mingw32 Binutils for i386-mingw32 cross development
Long Description: Mingw32 development toolchain ("binutils") for i386-mingw32 (Windows) cross development.
Homepage: http://www.mingw.org
Category: cross devel

depends_lib port:gettext

# Parameters for this port.
set crossgcc-target i386-mingw32

Platform: darwin
Master Sites: sourceforge:mingw
distname binutils-${version}-mingw32-src
worksrcdir binutils-${version}
Checksums: md5 ad3f2b5fdcd599a772ad75fec2c384d8 sha1 7e930435c47991c4070b1c74b010350e4669011f rmd160 98916f371f647864997bb00084a5e7a0fd46d982

# Build in a different directory, as advised in the README file.
pre-configure { system "cd ${workpath} && mkdir -p build"}
configure.dir ${workpath}/build
configure.cmd ${worksrcpath}/configure
configure.args --infodir='${prefix}/share/info' --target=${crossgcc-target} --program-prefix=${crossgcc-target}- --mandir='${prefix}/share/man' --disable-werror
if {${os.platform} == "darwin" && $build_arch != ""} {
configure.args-append --build=${build_arch}-apple-darwin${os.major}
}
# Append CPPFLAGS to CFLAGS and CXXFLAGS as CPPFLAGS seems to be ignored
configure.cflags-append ${configure.cppflags}
configure.cxxflags-append ${configure.cppflags}
build.dir ${workpath}/build

# We don't want the etc module.
post-extract {
system "rm -rf ${worksrcpath}/etc"
}

post-patch {
namespace eval crossgcc {}

# Fix the info pages and related stuff.
#
# path: path to the doc directory (e.g. gas/doc/)
# makefile: path to Makefile.in (e.g. gas/doc/Makefile.in)
# name: name of the info page (e.g. as)
# suffix: suffix of the souce page (texinfo or texi)
proc crossgcc::fixinfo { path makefile name suffix } {
global crossgcc-target worksrcpath

# Fix the source
reinplace "s|setfilename ${name}.info|setfilename ${crossgcc-target}-${name}.info|g" ${worksrcpath}/${path}/${name}.${suffix}
reinplace "s|(${name})|(${crossgcc-target}-${name})|g" ${worksrcpath}/${path}/${name}.${suffix}
reinplace "s| file{${name}}| file{${crossgcc-target}-${name}}|g" ${worksrcpath}/${path}/${name}.${suffix}

# Fix the Makefile
reinplace "s|${name}.info|${crossgcc-target}-${name}.info|g" ${worksrcpath}/${makefile}
reinplace "s|${name}.${suffix}|${crossgcc-target}-${name}.${suffix}|g" ${worksrcpath}/${makefile}

# Rename the source
file rename ${worksrcpath}/${path}/${name}.${suffix} ${worksrcpath}/${path}/${crossgcc-target}-${name}.${suffix}

# Fix install-info's dir.
# (note: this may be effectless if there was no info dir to be fixed)
reinplace "s|__TARGET|${crossgcc-target}|g" "${worksrcpath}/${makefile}"
}

# Fix the gettext files and related stuff.
#
# module: name of the module (e.g. gas)
proc crossgcc::fixgettext { module } {
global crossgcc-target worksrcpath

if { [ file exists "${worksrcpath}/${module}/Makefile.in" ] } {
reinplace "s| PACKAGE |${crossgcc-target}- PACKAGE |g" "${worksrcpath}/${module}/Makefile.in"
}
if { [ file exists "${worksrcpath}/${module}/doc/Makefile.in" ] } {
reinplace "s| PACKAGE |${crossgcc-target}- PACKAGE |g" "${worksrcpath}/${module}/doc/Makefile.in"
}
if { [ file exists "${worksrcpath}/${module}/po/Make-in" ] } {
reinplace "s| PACKAGE |${crossgcc-target}- PACKAGE |g" "${worksrcpath}/${module}/po/Make-in"
}
}

# gas/doc/as.texinfo
crossgcc::fixinfo gas/doc/ gas/doc/Makefile.in as texinfo

# bfd/doc/bfd.texinfo
crossgcc::fixinfo bfd/doc/ bfd/doc/Makefile.in bfd texinfo

# binutils/doc/binutils.texi
crossgcc::fixinfo binutils/doc/ binutils/doc/Makefile.in binutils texi

# gprof/gprof.texi
crossgcc::fixinfo gprof/ gprof/Makefile.in gprof texi

# ld/ld.texinfo
crossgcc::fixinfo ld/ ld/Makefile.in ld texinfo

# gettext stuff.
crossgcc::fixgettext bfd
crossgcc::fixgettext binutils
crossgcc::fixgettext gas
crossgcc::fixgettext gprof
crossgcc::fixgettext ld
crossgcc::fixgettext opcodes
}

destroot.violate_mtree yes
post-destroot {
# Installing (host) libiberty was a mistake.
file delete ${destroot}${prefix}/lib/libiberty.a
file delete ${destroot}${prefix}/lib/${build_arch}/libiberty.a
}

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/i386-mingw32-binutils
%  sudo port install i386-mingw32-binutils  
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 i386-mingw32-binutils
--->  Verifying checksum for i386-mingw32-binutils
--->  Extracting i386-mingw32-binutils
--->  Configuring i386-mingw32-binutils
--->  Building i386-mingw32-binutils with target all

--->  Staging i386-mingw32-binutils into destroot

--->  Installing i386-mingw32-binutils

- 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 i386-mingw32-binutils with these commands:

%  man i386-mingw32-binutils
%  apropos i386-mingw32-binutils
%  which i386-mingw32-binutils
%  locate i386-mingw32-binutils

 Where to find more information: