Packages needed to compile Simulink Embedded coder

I use Simulink Embedded coder to produce C code for my fix point embedded application. I presently have many packages in my license that are probably not all used. Since I consider buying a second license for my assistant, I would like to know what is the minimum needed from the following list. We do not produce Matlab code or macros, simply simulink models using basic blocks and Stateflow. This full licence cost more than $30,000 ! I don't want to pay for unused packages.

MATLAB (MLALL)
Simulink (SLALL) 
Embedded Coder (ECALL) 
MATLAB Coder (MEALL)  "Why do I need this one?"
Fixed-Point Designer (POALL) 
Simulink Coder (RTALL) 
Stateflow (SFALL)
Signal Processing Toolbox (SGALL) "I don't even use this one in my first licene"

Thank you.

Answer 1

[Walter Roberson]

http://www.mathworks.com/products/availability/#EC

    Requires MATLAB
    Requires MATLAB Coder
    Requires Simulink for generating code from Simulink
    Requires Simulink Coder for generating code from Simulink
    Requires Fixed-Point Designer for generating fixed-point code
    Requires host platform C compiler. See list of supported host compilers.
    Requires cross-compiler for the target processor if the code will execute on a platform different from the host.

The two that you have that you would not need are

Stateflow (SFALL)
Signal Processing Toolbox (SGALL) "I don't even use this one in my first licene"

Simulink Coder more or less translates Simulink models into MATLAB equivalents and then hands the result to MATLAB Coder to generate actual code, I figure.