Re: [Mingw-users] Confused about mingw and gfortran-mingw workingtogether

[Eduardo Mendes <emammendes@xxxxxxxxxxx>]

> Date: Fri, 1 Feb 2008 12:04:06 -0800
> From: brian@xxxxxxxxxxx
> To: mingw-users@xxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [Mingw-users] Confused about mingw and gfortran-mingw workingtogether
>
> Eduardo Mendes wrote:
>
> > and I want to install the last gfortran-mingw. I have noticed that
> > gfortran is installed in a different directory and comes with several
> > mingw "utilities".
>
> Where did you get this version of gfortran? From the links in the gcc
> wiki? You seem to assume we know what you're talking about but there
> could be any number of random people on the internet that have offered
> compiled versions of gfortran for you to download; we have no idea. If
> you are using the ones from the Wiki then you should follow the
> installation directions there. We don't really have anything to do with
> those binaries so you should ask on their mailing list.
>
> We also offer gfortran as part of our gcc 4.2 packages. If you want to
> use our gfortran you should download those, they are the only ones we
> support. They simply unpack in the root where you've installed MinGW.
> You'll want the gcc-core and gcc-gfortran packages. They are in two
> flavors, sjlj and dw2. If you're not sure what this means, then choose
> the sjlj flavor. These are all downloadable at the MinGW sourceforge
> download site.
>
> > a) Are those "utilities" compatible with 5.3.1?
>
> Don't know, ask them.
>
> > b) Can I change the installation dir for gfortran to c:\mingw where
> > mingw is located?
>
> If you are using our gcc 4.2 packages, they must be extracted to the
> root where you installed MinGW.
>
> > c) Off topic but related - There is an exe from www.equations .com
> > that comes with gcc4.2.x. Do I need mingw for that?
>
> Don't know, ask them.
>
> > Please help me to get a mingw environment with the latest version of
> > g95, gfortran and gcc. I must confess that I completely lost.
>
> Do note that none of these will contain g95. g95 is a separate project
> that is not part of gcc. It was an old fork. gcc < 4.0 comes with g77,
> gcc >= 4.0 dropped g77 and uses the newer rewritten gfortran.
>
> Brian
>

Dear Brian
 
Many thanks.  I think I get the picture.
 
One last thing -  I want to update my mingw installation to the lastest packages.  What should I do?   Can I get rid of old packages such gcc < 4.0 and the related libraries? 
 
I am thinking of downloading the latest tar.bz2 packages and then using msys.bat to get an unix-like environment . Within msys cd /mingw and then bunzp2 and tar for all packages.  Am I doing right thing?
 
I am not sure how to get rid of old packages though.
 
regards
 
Ed
 

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