Fixed warning 'captured structured bindings are a C++20 extension'

Author: doxygen

src/dotrunner.cpp

@@ -397,14 +397,15 @@ bool DotRunner::run(const DotJobs &dotJobs)
         {
           if (cmd.numDotFiles>0)
           {
-            auto process = [this,cmd,dirStr]() -> size_t
+            auto locDirStr = dirStr;
+            auto process = [this,cmd,locDirStr]() -> size_t
             {
               int exitCode;
               if ((exitCode = Portable::system(m_dotExe, cmd.arguments, FALSE)) != 0)
               {
                 err_full(cmd.firstJob->srcFile, 1,
                     "Problems running dot: exit code={}, command='{}', dir='{}', arguments='{}'",
-                    exitCode, m_dotExe, dirStr, cmd.arguments);
+                    exitCode, m_dotExe, locDirStr, cmd.arguments);
               }
               return cmd.numDotFiles;
             };