svip demo load failed due missing librgsm.so.1 library

[reanimator]

1) lsb_release -rd
Description: Ubuntu 12.04.1 LTS
Release: 12.04

2) dpkg -l scilab-sivp
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-======================================-======================================-============================================================================================
ii scilab-sivp 0.5.3-3 Scilab Image and Video Processing toolbox

3) Demo is has to be loaded correctly
Steps to reproduce
- Start scilab
- Go to Toolboxes / sivp
--> The load error happens here

4) Demo is failed with following error

Startup execution:
  loading initial environment
 SIVP - Scilab Image and Video Processing Toolbox
 Load macros
 Load gateways
        link(opencvlibs+"/libgsm.so.1");
                                        !--error 236
link: The shared archive was not loaded: /usr/lib/scilab-sivp/thirdparty/opencv/lib/libgsm.so.1: cannot open shared object file: No such file or directory
at line 83 of exec file called by :
exec(get_absolute_file_path("loader.sce")+"etc/"+"SIVP.start");
at line 10 of exec file called by :
exec("/usr/share/scilab//contrib/sivp/loader.sce");
in execstr instruction called by :
o = gcbo; end;gcbo = getcallbackobject(8);execstr(toolboxes(1));if exists("%oldgcbo") then gcbo = %oldgcbo; else clear gcbo; en
while executing a callback