id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
12486,system_error_code for thread safe,lzwyg <lzwyg@…>,Ion Gaztañaga,"if(!create_directory(root_shared_dir.c_str())){
         error_info info(system_error_code());
         if(info.get_error_code() != already_exists_error){
            throw interprocess_exception(info);
         }
      }

If the directory exists, get last error is already_exists_error,
but in the multi thread environment, last_error will be rewritten by another thread.

Whether this can be improved by compiler options?

test environment: MAC OS",Bugs,closed,To Be Determined,interprocess,Boost 1.61.0,Problem,invalid,,