PerlInterpreter *new_perl = perl_clone_using((PerlInterpreter*)aTHX, CLONEf_COPY_STACKS, h->m_pHostperlMem, h->m_pHostperlMemShared, h->m_pHostperlMemParse, h->m_pHostperlEnv, h->m_pHostperlStdIO, h->m_pHostperlLIO, h->m_pHostperlDir, h->m_pHostperlSock, h->m_pHostperlProc );