How to get working Matlab Coder in Linux

Hello,

I followed the Webminar about Generating C++ code with Matlab Coder (<http://www.mathworks.com/company/events/webinars/wbnr56354.html?id=56354&p1=869881600&p2=869881618>) and i tried to replicate the easy examples in Linux.

I started with

    function c = foo(a,b) %#codegen

    c = a * b;

and I generate the project, but in the build process I got severals errors messages like:

Build error: Compilation returned error status code 2. See the target build log for further details.

 1   gcc -c -ansi -D_GNU_SOURCE  -fexceptions -fPIC -fno-omit-frame-pointer -pthread -DMX_COMPAT_32  -g  -I "/opt/MATLAB/R2011a/extern/include" -I "/opt/MATLAB/R2011a/simulink/include" -I "/opt/MATLAB/R2011a/toolbox/shared/simtargets" -I "/opt/MATLAB/R2011a/rtw/ext_mode/common" -I "/opt/MATLAB/R2011a/rtw/c/src/ext_mode/common" -I "/home/mikesol/Documents/2010/Cpp/MatlabCpp/codegen/mex/product" -I "/home/mikesol/Documents/2010/Cpp/MatlabCpp" "product.c"
    2   /usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.3/cc1: /opt/MATLAB/R2011a/sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.14' not found (required by /usr/lib/libppl_c.so.4)
    3   /usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.3/cc1: /opt/MATLAB/R2011a/sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/libppl_c.so.4)
    4   /usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.3/cc1: /opt/MATLAB/R2011a/sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.14' not found (required by /usr/lib/libppl.so.9)
    5   /usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.3/cc1: /opt/MATLAB/R2011a/sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/libppl.so.9)
    6   /usr/lib/gcc/x86_64-unknown-linux-gnu/4.5.3/cc1: /opt/MATLAB/R2011a/sys/os/glnxa64/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /usr/lib/libgmpxx.so.4)
    7   gmake: *** [product.o] Error 1

Anyone has a clue what happened?

Thanks in advance,

Michael.

Answer 1

[John Elliott]

Hi, It appears that you have an incomplete install of the gcc compiler. Based on the build log, the 'gcc' command requires (for example) 'libstdc++.so', which apparently isn't installed on your machine.

Have you tried compiling the standard 'hello world' C program on your Linux system? This would be a quick check to see if you have a good install of gcc.

-John

Answer 2

[Maikol Solís Chacón]

Hi,

I think i got it. I followed this (<http://www.mathworks.com/support/solutions/en/data/1-QBCS1/?solution=1-QBCS1>)

cd $MATLAB
cd sys/os/glnx86
mkdir old
mv libstdc++.* libg2c.* libgcc_s* old

After i have to add /usr/lib to the enviroment variables

export LD_LIBRARY_PATH=/usr/lib32:/usr/lib:$LD_LIBRARY_PATH

and it's all, Matlab should be use the libraries from Linux instead of the Matlab ones.

Thanks for your help.