`plplot_octave' undefined

[Alain Baeckeroot]

plplot just do no work: octave says :

error: `plplot_octave' undefined near line 1098 column 14
error: called from `plgcol0'

but plplot_octave is in the path :
ls -l /usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu/plplot_octave.oct
-rwxr-xr-x 1 root root 325752 2009-06-04 09:32 /usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu/plplot_octave.oct

Octave's search path contains the following directories:

.
/usr/share/plplot_octave/support
/usr/share/plplot_octave
/Big/WORKSPACES/climelioth/octave/graph
/Big/WORKSPACES/climelioth/octave/bilans
/Big/WORKSPACES/climelioth/octave/calcul/boucle_cc
/Big/WORKSPACES/climelioth/octave/calcul/boucle_m
/Big/WORKSPACES/climelioth/octave/calcul
/Big/WORKSPACES/climelioth/octave/postgres
/Big/WORKSPACES/climelioth/octave/init
/Big/WORKSPACES/climelioth/octave/fcgi/lib
/Big/WORKSPACES/climelioth/octave
/usr/local/share/octave/site-m
/usr/lib/octave/site/oct/api-v32/i486-pc-linux-gnu
/usr/share/octave/site/m
/usr/share/octave/site/m/PLplot
/usr/lib/octave/3.0.5/oct/i486-pc-linux-gnu
/usr/share/octave/3.0.5/m
....

ProblemType: Bug
Architecture: i386
Date: Thu Jan 7 13:03:05 2010
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: fglrx
Package: octave-plplot 5.9.2-3
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
SourcePackage: plplot
Uname: Linux 2.6.31-16-generic i686

[Alain Baeckeroot (alain-baeckeroot)]

It works flawlessly on a debian lenny (octave 3.0.1, plplot 5.9.0.8)

[Alain Baeckeroot (alain-baeckeroot)]

1/ in my chrooted debian lenny (plplot works to produce files):

octave:1> toggle_plplot_use

octave:2> plplot_octave_path
ans = /usr/share/plplot_octave// <--- notice the //

octave:3> plplot_octave
panic: Segmentation fault -- stopping myself...

OK it finds plplot_octave (and segfault is normal it should no be called like this)

***************************************
2/ in my karmic install :

octave:1> toggle_plplot_use
Use PLplot: on

octave:2> plplot_octave_path
ans = /usr/share/plplot_octave

octave:3> plplot_octave
error: `plplot_octave' undefined near line 3 column 1

It does not find plplot_octave.oct BUT when i quit plplot :
octave:3> toggle_plplot_use
Use PLplot: off

octave:4> plplot_octave
panic: Segmentation fault -- stopping myself...

it finds it again !

It seems that toggle_plplot_use is broken and remove some essential part from the path

[Alain Baeckeroot (alain-baeckeroot)]

ok i got a workaround :after toggle_plplot_use the path is broken

rmpath /usr/share/plplot_octave/support
rmpath /usr/share/plplot_octave
addpath /usr/share/plplot_octave -end
addpath /usr/share/plplot_octave/support -end

now it works !

[Alain Baeckeroot (alain-baeckeroot)]

It works ONLY with the package i recompiled from source

http://packages.ubuntu.com/karmic/octave-plplot

it seems the build is totally broken

[Andrew Ross (andrewross)]

As the Debian maintainer for this package I don't know what has happened with the build on Ubuntu. I can confirm that rebuilding from source solves the problem for me too, so I suspect it was a problem with octave being updated after plplot had been build. plplot_octave is definitely in the path, but just not recognised.

[Alain Baeckeroot (alain-baeckeroot)]

<very unhappy>
Additional information: after rebuilding from

    dget http://archive.ubuntu.com/ubuntu/pool/universe/p/plplot/plplot_5.9.2-3.dsc
    apt-get build-dep plplot
    cd plplot-5.9.2
    debuild -us -uc
    sudo debi

the installed packages are out-dated, so upgrade manager want to replace them.
I had to change revision numer of the package to keep it working.

Also, it installs ada, java (i don't want gcj), fortran... and everything when i only wanted octave_plplot.
Something is completely wrong with ubuntu packages, whereas debian one is clean !

</very unhappy>

[Alain Baeckeroot (alain-baeckeroot)]

I tried to try with octave3.2 (also included in karmic repository) : worst failure

1/ plplot reinstall octave 3.0 (which does not work see above)

2/ trying octave 3.2 + plot =
toggle_plplot_use
warning: split is obsolete and will be removed from a future version of Octave; please use strsplit instead
Use PLplot: on
octave3.2:5> plot(x,y)
error: /usr/share/plplot_octave/plplot_octave.oct: undefined symbol: _Z20install_dld_functionPF17octave_value_listRKS_iERKSsRK12octave_shlibS5_bb
error: called from:
error: plsstrm at line 3533, column 1
error: /usr/share/plplot_octave/figure.m at line 88, column 1
error: /usr/share/plplot_octave/support/__pl_init.m at line 20, column 5
error: /usr/share/plplot_octave/support/__plt__.m at line 21, column 8
error: /usr/share/plplot_octave/plot.m at line 56, column 3

[Alain Baeckeroot (alain-baeckeroot)]

removing octave-plplot also removes octave3.0

[Alain Baeckeroot (alain-baeckeroot)]

So what happens ? Anybody here to at least confirm this bug ?

I can't believe ubuntu includes unmaintained packages, does it ?