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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: GCC 4.8.0 for Mac OS X
Date: Mon, 15 Apr 2013 08:38:38 +0100
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Date: 2013-04-15T08:38:38+01:00
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You can find this at
https://sourceforge.net/projects/gnuada/files/GNAT_GCC%20Mac%20OS%20X/4.8.0/

The README says:

This is GCC 4.8.0 built for Mac OS X Mountain Lion.

Includes ASIS, AUnit, GPRbuild, XMLAda from GNAT GPL 2012.

Compilers included: Ada C C++ Fortran.

Target: x86_64-apple-darwin12
Configured with:
../gcc-4.8.0/configure \
  --prefix=/opt/gcc-4.8.0 \
  --disable-multilib \
  --enable-languages=c,ada,c++,fortran \
  --target=x86_64-apple-darwin12 \
  --build=x86_64-apple-darwin12
Thread model: posix
gcc version 4.8.0 (GCC)

Install by

   $ cd /
   $ sudo tar jxvf ~/Downloads/gcc-4.8.0-x86_64-apple-darwin12.tar.bz2

and put /opt/gcc-4.8.0/bin first on your PATH.

MD5 (gcc-4.8.0-x86_64-apple-darwin12.tar.bz2) = db2c8b196475faa648b8f40b66465692