[wplug] Installation directories

[Weber, Larry A]

Thanks for your help.  I used the KDE package manager to remove the gcc 2.96
packages which freed up that disk space.  Since it is no longer in the
system, the path search finds the installation in /usr/local/bin.  I
recompiled some old work correctly, so I am guessing that the libraries are
being found.

I did a grep for PATH and the only place I can see it being set is in
csh.login.  Although this is not double setting some of the path dirs.
Since RH uses bash I didn't think the csh file would be used.

> -----Original Message-----
> From:	Procario, Michael [SMTP:Michael.Procario at science.doe.gov]
> Sent:	Wednesday, August 08, 2001 10:32 AM
> To:	'wplug at wplug.org'
> Subject:	RE: [wplug] Installation directories
> 
> That was not well written. I will try again. 
> 
> You can change the install location using configure --prefix=/usr
> 
> The default of /usr/local is a good idea since it prevents some problems
> with package managers. Put /usr/local in the beginning of your path to
> pick
> up the local version. If you add new libraries into /usr/local/lib you may
> need update /etc/ld.so.conf. I think gcc knows where its libraries are
> from
> the build process. 
> 
> I use to build gcc on non-linux boxes like SGI and DEC quite regularly. A
> good distribution like debian, slackware will give you a working compiler.
> 
> 
> Mike 
> 
> -----Original Message-----
> From: Procario, Michael [mailto:Michael.Procario at science.doe.gov]
> Sent: Wednesday, August 08, 2001 10:03 AM
> To: 'wplug at wplug.org'
> Subject: RE: [wplug] Installation directories
> 
> 
> Yes. Almost all linux software supplied as source defaults to installing
> in
> /usr/local. Usually configure has an option to allow you to choose where
> to
> put it. The option is --prefix, so 
> 
> configure --prefix=/usr 
> 
> will set things up so that executables go into /usr/bin, libraries go into
> /usr/lib etc. If you set up you path with /usr/local/bin first, you can
> use
> the new gcc without removing the old one. 
> 
> The distributions assume that anything under /usr/bin, /usr/lib is
> installed
> by the distribution so the package managers can get the dependencies
> right.
> 
> Mike
> 
> -----Original Message-----
> From: Weber, Larry A [mailto:laweber at switch.com]
> Sent: Wednesday, August 08, 2001 9:02 AM
> To: wplug at wplug.org
> Subject: [wplug] Installation directories
> 
> 
> 
> I heard at the GUM there might be problems with the gcc (Ver. 2.96) that
> is
> provided with RedHat 7.1.  So this week I decided to update to gcc 3.0.  I
> went through the configure - make - make install process and everything
> went
> well.  However the default installation directory is /usr/local/bin while
> the original RedHat provided gcc is in /usr/bin.  I noticed that many of
> the
> apps I have installed default to the /usr/local directory.  Is this some
> sort of Linux standard?
> 
> Now I have two versions of gcc.  Any ideas on how to cleanly remove the
> 2.96, and can I move the 3.0 rev.?
> 
> I would consider blowing away 2.96 and changing my path to search
> /usr/local
> first.  When I echo $PATH I find that several directories are repeated.  I
> have checked the bashrc file but cannot find anything there that sets
> PATH.
> Does anyone know where PATH is being set?
> 
> -laweber
> 
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