extern int v3p_netlib_zgemm_(
  char *transa,
  char *transb,
  v3p_netlib_integer *m,
  v3p_netlib_integer *n,
  v3p_netlib_integer *k,
  v3p_netlib_doublecomplex *alpha,
  v3p_netlib_doublecomplex *a,
  v3p_netlib_integer *lda,
  v3p_netlib_doublecomplex *b,
  v3p_netlib_integer *ldb,
  v3p_netlib_doublecomplex *beta,
  v3p_netlib_doublecomplex *c__,
  v3p_netlib_integer *ldc,
  v3p_netlib_ftnlen transa_len,
  v3p_netlib_ftnlen transb_len
  );