Compiling SCIAO-0.2.5 for Scilab 5

[Samuel GOUGEON]

Hello,

I am trying to compile the SCIAO toolbox to use it from Scilab 5.1
on the winXP Pro OS.
When running the win-builder.sce, i get the following error:
-------
-->dir
 ans  =
AUTHORS.txt Makefile.in config       demos      man              
COPYING.txt README.txt  config.h.in  examples   src              
INSTALL.txt aclocal.m4  configure    loader.sce win-builder.sce  
Makefile.am builder.sce configure.ac macros                      
 
-->exec win-builder.sce
-->mode(-1);
 building SciAO toolbox    
 Be patient, this may take a while  

 Compiling lightPipes library  
-->mode(-1);
 Making all in lightPipes library  
 Be patient, this may take a while  
 lightPipes library compiled  

 Compiling arroyo library  
-->mode(-1);
 Making all in arroyo library  
 Be patient, this may take a while  
 arroyo library compiled  
 
Compiling wrapper library  
-->mode(-1);
 Making all in wrapper library  
 Be patient, this may take a while  
 arroyo_wrap library compiled  

 now create the shared library  
 Compiling interf shared  ibrary  
 Compiling scicos shared library  
  
   Microsoft (R) Program Maintenance Utility Version 9.00.30729.01
   Copyright (C) Microsoft Corporation.  All rights reserved.
  
   NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 
9.0\VC\bin\cl.EXE"'á: code retour '0x2'
   Stop.
 !--error 10000
unix_s: error during "nmake /f Makefile.mak" execution
at line      34 of function unix_s called by : 
unix_s(cmd_make)
line   227 of exec file called by :   
exec win-builder.sce

------
I would appreciate any hint to fix this issue.

Thank you

Samuel