- correctly set the return value from the execution of the generated …

…executable

  sometimes the executable would return -1 instead of 0!

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@5450 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

c_runtime/simulation_runtime.cpp

@@ -252,7 +252,7 @@ int startNonInteractiveSimulation(int argc, char**argv){
 	  if (measure_time_flag)
 		  measure_start_time = clock();
 
-	  callSolver(argc, argv, method, start, stop, stepSize, outputSteps, tolerance);
+	  retVal = callSolver(argc, argv, method, start, stop, stepSize, outputSteps, tolerance);
 
 	  if (measure_time_flag)
 	     cout << "Time to calculate simulation: "<< (clock()-measure_start_time)/CLOCKS_PER_SEC <<" sec." << endl;