static int wsa_init_done = 0;
# endif
-# ifndef _WIN32
+# if defined __TANDEM
+# include <unistd.h>
+# include <sys/time.h> /* select */
+# if defined(OPENSSL_TANDEM_FLOSS)
+# include <floss.h(floss_select)>
+# endif
+# elif !defined _WIN32
# include <unistd.h>
# include <sys/select.h>
# else