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Re: Updates from 3.20 to 3.23

From: Charles Curley
Subject: Re: Updates from 3.20 to 3.23
Date: Sat, 25 Sep 2021 07:30:34 -0600

On Fri, 24 Sep 2021 22:45:49 -0700
"Gary E. Miller" <> wrote:

> Yo Charles!
> On Fri, 24 Sep 2021 15:19:45 -0600
> Charles Curley <> wrote:
> > > Only on those operating systems that use ldconfig, and only when
> > > run as root.    
> > 
> > A non-root user won't be installing libraries (i.e. copying them to
> > where the system wants them and looks for them). For that reason,
> > and to run it only when necessary, I'd put it right after those copy
> > instructions. However, my lack of python-fu and scons-fu preclude me
> > even from finding that location.  
> But how do yoo know when it is neccessary?  Gentoo has ldconfig, but
> I have not run ldconfig in years.

I think it is necessary only when the linker's cache would change,
i.e. when changing libgpsX version numbers, say from to (Such is the range on Debian. 23 on stock Debian 10
[Buster], and 29 the latest from the GPSD git repo.) A test for that
should be feasible. I don't think you need it on a fresh installation.

However, it doesn't take long to run ldconfig. A lazy approach would be
to run it every time.

> > So at this point, my inclination is to not pursue it.  
> As a start, document which systems need it.  I'm surprised that any
> still do.

I only run Debian, so that's all I can document. Anyone else?

Does anybody read signatures any more?

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