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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: GCC 4.8.0 for Mac OS X
Date: Wed, 19 Jun 2013 08:26:24 +0100
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Date: 2013-06-19T08:26:24+01:00
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paulohsantosol@gmail.com writes:

> I didn't get it, could you be more especific in the installation when
> you say:
>
>    $ 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. 
>
> I didn't understand the last line. What do I have to put in the bin
> directory after I created it?

Here, the first Google hit on searching for 'set path mac os x mountain
lion' was [1], which I'm sure will work. I use a different technique,
which has the strong disadvantage of only working in Terminal windows
(but I'm used to it): edit ~/.bash_profile_common, at the end put

   PATH=/opt/gcc-4.8.0/bin:$PATH

and close/re-open all Terminal windows.

[1] http://architectryan.com/2012/10/02/add-to-the-path-on-mac-os-x-mountain-lion/