Re: Illegal instruction....

[Paul Theodoropoulos]

On 5/26/2020 7:07 AM, David J Taylor wrote:
> > Thanks, Bryan.  Looks like that isn't the problem:
> >
> > pi@raspi-3:~ $ dpkg -l | grep gps
> > rc  gpsd                           3.20-8~bpo10+1 armhf Global 
> > Positioning System - daemon
> > ii  libgps-dev                     3.20-8~bpo10+1 armhf Global 
> > Positioning System - development files
> > ii  libgps26:armhf                 3.20-8~bpo10+1 armhf Global 
> > Positioning System - library
> > ii  python3-gps                    3.20-8~bpo10+1 armhf Global 
> > Positioning System - Python 3 libraries
>
> I think they are the problem - I'm pretty sure they are not the 
> executables you built but are the ones installed when you attempted to 
> use a backported version of gps-3.20.
>
> I generally use the 'aptitude' command for installing/purging software 
> because it understands dependencies.
>
> maybe you could try:
> apt-get install aptitude
> aptitude purge gpsd libgps-dev libgps26:armhf
>
> Bryan Christianson
> address@hidden
> =========================================
>
> Thanks, Bryan.  I may try that.  It would help if one could run an 
> apt(-get) install from the source files I spent 30 minutes compiling.  
> Perhaps one can?
>
> I'm hoping that someone can come up with the correct linking magic!
>
> Cheers,
> David

aptitude is a curses-based application that largely does the same as 
apt/apt-get. You can use apt/apt-get to purge the packages too.

dpkg --get-selections |grep gps

is a good one to use as well, as it will tell you the install status of 
the package  - that is, if you ran 'apt remove', it will still list the 
packages, but they will be marked as 'deinstall', while if you 'apt 
purge', there will be no trace listed.

Regardless though, the 'rule' should always be that if you switch between 
a debian package and building the application from source, you really want 
there to be no trace of the debian package left behind before diagnosing 
the built application.

--
Paul Theodoropoulos
www.anastrophe.com