Installing ngspice 25

[les]

On Sun, 2013-03-17 at 18:57 +0000,
davidschaak1 at mobilicity.blackberry.com wrote:
> Can't bottom post.
> ./configure prefixdir = /usr should place all files in /usr.
> If it configures correctly run make 
> Su to root and run make install.
> 
> Hope this helps
> Sent from my BlackBerry® smartphone powered by Mobilicity
> 
> -----Original Message-----
> From: les <hlhowell at pacbell.net>
> Sender: users-bounces at lists.fedoraproject.org
> Date: Sun, 17 Mar 2013 11:31:07 
> To: <users at lists.fedoraproject.org>
> Reply-To: hlhowell at pacbell.net,
> 	Community support for Fedora users <users at lists.fedoraproject.org>
> Subject: Installing ngspice 25
> 
> I have been too spoiled by the rpm and yum processes.  Thank you fedora
> developers...
> 
> I need to run the install script to put ngspice-25 on my system.  I know
> that there is a default installation, but I do not know if that meets
> the current directory structure for F17 or later.  Has anyone done this,
> and how did you go about it?
> 
> I know I can pass -prefix  to change the binary directory, but from what
> I can tell, /usr/local/bin would appear to be ok, and /usr/sbin would be
> OK, but I cannot tell if the files that for ngspice-23
> in /usr/share/ngspice would be replaced.  I cannot find the /usr/share
> directory referenced in the config script.  I suspect that it is created
> from the several variables referring to the directories in the script,
> but I cannot tell which one it would be or where the files would end up
> from using search on the 17000 line configure script.
> 
> Also do I need to uninstall ngspice-23?  I have several designs that
> work under 23 and I am worried that -25 version may break some of them.
> Therefore I would like to have both versions available for a short time
> until I can verify my current stuff works under the -25 version.
> 
> Thanks for any information.
> 
> Regards,
> Les H
> 

That appears to have done it.  But I appear to have overwritten my
original.  Ok, I'm trying my current simulations to see if everything is
OK.  One question is how will yum update deal with the change?

Regards,
Les H