View the most recent changes for the apple-gcc42-devel port at: apple-gcc42-devel.darwinports.com/diff
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The raw portfile for apple-gcc42-devel 5564 is located here:
http://apple-gcc42-devel.darwinports.com/dports/lang/apple-gcc42-devel/Portfile
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The apple-gcc42-devel Portfile 57375 2009-09-10 08:16:41Z ryandesign macports.org $

PortSystem 1.0

Name: apple-gcc42-devel
Version: 5564
Category: lang
Platform: darwin
Maintainers: illogic-al
Description: Updated version of Apple's version of gcc 4.2
Long Description: Apple's version of the GNU compiler collection, version 4.2. Supports C, C++ and Objective-C.

Homepage: http://developer.apple.com/documentation/DeveloperTools/gcc-4.2/gcc/
Master Sites: http://www.opensource.apple.com/darwinsource/tarballs/other/
distname gcc_42-${version}
Checksums: md5 cc919b07776db1a209ccaa48b0e19da7

# The prefix is set to /usr because parts of the script are hardcoded to expect it
set build_prefix /usr

post-extract {
file mkdir ${worksrcpath}/debug
file mkdir ${destroot}
}

post-patch {
reinplace "s|MAKEINFO=\$\(MAKEINFO\) \$\(MAKEINFOFLAGS\)|MAKEINFO=makeinfo \$\(MAKEINFOFLAGS\)|" ${worksrcpath}/Makefile.in
}

use_configure no

# first parameter: space-separated list of archs compiler will run on
# second parameter: space-separated list of archs compiler will generate code for
# third parameter: path to the compiler sources
# fourth parameter: location compiler will be installed to. /usr is expected
# fifth parameter: place compiler will be copied once it's built
# sixth parameter: a directory to place information helpful in debugging compiler
# This build.cmd line will build gcc 4.2 with c++ and obj-c++ support
build.cmd ${worksrcpath}/build_gcc \"${configure.universal_archs}\" \"${configure.universal_archs}\" ${worksrcpath} ${build_prefix} ${destroot} ${worksrcpath}/debug

destroot {}

platform darwin 8 {
destroot.violate_mtree yes
# Delete docs and not violate_mtree
#system "rm -rf ${destroot}/Developer"
}

platform darwin 9 {
post-destroot {
# This documentation is already installed in Xcode for 10.5
system "rm -rf ${destroot}/Developer"
}
}

post-destroot {
system "mkdir -p ${destroot}${prefix}"
system "rm -rf ${destroot}${prefix}/*"
system "mv -f ${destroot}${build_prefix}/* ${destroot}${prefix}"
system "rmdir ${destroot}${build_prefix}"
}

livecheck.type moddate
livecheck.url ${master_sites}

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/apple-gcc42-devel
%  sudo port install apple-gcc42-devel  
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 apple-gcc42-devel
--->  Verifying checksum for apple-gcc42-devel
--->  Extracting apple-gcc42-devel
--->  Configuring apple-gcc42-devel
--->  Building apple-gcc42-devel with target all

--->  Staging apple-gcc42-devel into destroot

--->  Installing apple-gcc42-devel

- 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 apple-gcc42-devel with these commands:

%  man apple-gcc42-devel
%  apropos apple-gcc42-devel
%  which apple-gcc42-devel
%  locate apple-gcc42-devel

 Where to find more information: