Problems with building toolboxes

[Nils]

Hi,

I'm currently trying to solve a few quite large linear programs using 
scilab.

 From what I gathered from the documentation and the change log, the 
only solver for linear programs was moved out of scilab and into the 
toolbox "quapro".

I've got quapro-1.0 from the git repository, but when I try to execute 
the 'builder.sce', I get the following error

http://pastebin.com/eHfucuP2

The script still succeeds in generating the loader.sce. Executing this 
however fails because the builder apparently really failed to build 
parts of the toolbox.

 From what I found when searching for the above error, I'm concluding, 
that I may have the wrong version of libtool installed, to build the 
toolbox. I could however not find any source telling which version of 
libtool would be required to build toolboxes in scilab.
My version of libtool is:
 > ltmain.sh (GNU libtool) 2.2.6b
 > Written by Gordon Matzigkeit <gord at gnu.ai.mit.edu>, 1996

Is there a specific version that will work, or am I missing something 
completely, and the problem lies elsewhere?

Regards,

Nils Fleischhacker