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