Re: Pari/GP under Ubuntu 12.04 LTS (Precise Pangolin)

[Dirk Laurie <dirk.laurie@gmail.com>]

2012/7/24 Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>:
> On Fri, Jul 20, 2012 at 08:21:18PM +0200, Dirk Laurie wrote:
>> dirk@rondloper:/tmp$ /usr/bin/gp
>> Reading GPRC: /etc/gprc ...Done.
>>
>>                   GP/PARI CALCULATOR Version 2.5.1 (released)
>>            i686 running linux (ix86/GMP-4.3.2 kernel) 32-bit version
>>
>> dirk@rondloper:/tmp$ dpkg -s pari-gp
>> Version: 2.5.0-2ubuntu1
>
> The PARI version does not match. It seems impossible that /usr/bin/gp is the one
> from the pari-gp package.
>
> Cheers,
> Bill.
>


I have just done the following:

1. Opened pari-gp_2.5.0-2ubuntu1_i386.deb with archive manager
    and extracted only the file gp-2.5.
2. Ran it.
3. Got the streamer
                  GP/PARI CALCULATOR Version 2.5.1 (released)
           i686 running linux (ix86/GMP-4.3.2 kernel) 32-bit version
        compiled: Nov 17 2011, gcc-4.6.2 (Ubuntu/Linaro 4.6.2-2ubuntu1)
                 (readline v6.2 enabled, extended help enabled)

I got the deb file off a mirror site.

I then ran `strace ./gp-2.5`.  It revealed that many files from /usr/local
were being opened.  I have a very recent pari-gp on /usr/local.  I renamed
/usr/local to something else.  This time I got the streamer
                  GP/PARI CALCULATOR Version 2.5.0 (released)
              i686 running linux (ix86/GMP kernel) 32-bit version
        compiled: Nov 17 2011, gcc-4.6.2 (Ubuntu/Linaro 4.6.2-2ubuntu1)
                 (readline v6.2 enabled, extended help enabled)

Again with strace: it was trying the same files first, this time not finding
them.

So what's happening is that running the gp binary from Precise does not
mean that it will be using the libraries from Precise too.

Dirk