Try upgrading the system first

Author: sanguinariojoe

.github/workflows/matlab.yml

@@ -40,19 +40,24 @@ jobs:
       - name: Install
         run: cmake --install ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
 
+      - name: Upgrade system
+        run: |
+            sudo apt-get -qq update
+            sudo apt-get -qq -y upgrade
+
       - name: Set up MATLAB
         uses: matlab-actions/setup-matlab@v2
 
       - name: Compile and run
         uses: matlab-actions/run-command@v2
         with:
           command: |
-              LD_PRELOAD=/lib/x86_64-linux-gnu/libstdc++.so.6 mex('-setup', '-v', 'C');
+              mex('-setup', '-v', 'C');
               cd('wrappers/matlab/');
               fnames = struct2table(dir('*.cpp')).name;
               for i = 1:length(fnames)
                   fname = cell2mat(fnames(i));
-                  LD_PRELOAD=/lib/x86_64-linux-gnu/libstdc++.so.6 mex('-v', fname, '-I./', '-I${{github.workspace}}/install/include/moordyn', '-L${{github.workspace}}/install/lib', '-L${{github.workspace}}/install/lib64', '-lmoordyn');
+                  mex('-v', fname, '-I./', '-I${{github.workspace}}/install/include/moordyn', '-L${{github.workspace}}/install/lib', '-L${{github.workspace}}/install/lib64', '-lmoordyn');
               end
               % Run the same minimal test we have on matlab_bindings.m.in
               system = MoorDynM_Create('../../tests/Mooring/lines.txt');