问题
I am using the BGL libraries for MATLAB found here on fileexchange. I get this error when using a function from this library under Ubuntu 10.04 LTS (this error did not occur under Windows, where it worked normally).
??? Invalid MEX-file
'/home/alex/Documents/MATLAB/MATLABsvnWorkingDir/Bloom/graphAnalysis/analysisAttempt2/functi onsDownloaded/matlab_bgl-4.0.1/matlab_bgl/private/components_mex.mexglx':
libstdc++.so.5: cannot open shared object file: No such file or
directory.
Error in ==> components at 42
[ci sizes] = components_mex(A);
Error in ==> modularize_graphs_Alex_hugeMats_BlondelCode at 16
[comnts,~] = components(graph);
The whole problem appears to be with libstdc++.so.5. I cannot find it in the synatpic package manager. There is this thread which discusses the problem but I have tried those steps without any progress.
I tried the solution listed here:
alex@alex-laptop:~/Desktop$ sudo apt-get install libstdc++.so.5
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package libstdc++.so.5
alex@alex-laptop:~/Desktop$
I have also tried other solutions that I found on the web but nothing fixed the problem.
回答1:
Try using
sudo apt-get install libstdc++5
This should install the package, including the libs needed.
来源：https://stackoverflow.com/questions/16084323/trying-to-find-and-install-libstdc-so-5-to-run-c-with-mex-for-matlab