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+/* -*-C-*-
+
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/uxselect.h,v 1.1 1991/06/22 19:09:15 cph Exp $
+
+Copyright (c) 1991 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science.  Permission to copy this software, to redistribute
+it, and to use it for any purpose is granted, subject to the following
+restrictions and understandings.
+
+1. Any copy made of this software must include this copyright notice
+in full.
+
+2. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. */
+
+#ifndef SCM_UXSELECT_H
+#define SCM_UXSELECT_H
+
+enum select_input
+{
+  select_input_argument,
+  select_input_other,
+  select_input_none,
+  select_input_process_status
+};
+
+extern CONST int UX_have_select_p;
+extern enum select_input EXFUN (UX_select_input, (int fd, int blockp));
+
+#endif /* SCM_UXSELECT_H */