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Annotation of micropolis/src/tcl/compat/testwait.c, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * testwait.c --
                      3:  *
                      4:  *     This file contains a simple program that will compile
                      5:  *     correctly if and only if <sys/wait.h> defines the
                      6:  *     type "union wait".  It is used during configuration
                      7:  *     to determine whether or not to use this type.
                      8:  *
                      9:  * Copyright 1991 Regents of the University of California
                     10:  * Permission to use, copy, modify, and distribute this
                     11:  * software and its documentation for any purpose and without
                     12:  * fee is hereby granted, provided that this copyright
                     13:  * notice appears in all copies.  The University of California
                     14:  * makes no representations about the suitability of this
                     15:  * software for any purpose.  It is provided "as is" without
                     16:  * express or implied warranty.
                     17:  */
                     18: 
                     19: #ifndef lint
                     20: static char rcsid[] = "$Header: /user6/ouster/tcl/compat/RCS/testwait.c,v 1.3 91/12/18 13:42:09 ouster Exp $ SPRITE (Berkeley)";
                     21: #endif /* not lint */
                     22: 
                     23: #include <sys/types.h>
                     24: #include <sys/wait.h>
                     25: 
                     26: /*
                     27:  * This code is very tricky, mostly because of weirdness in HP-UX
                     28:  * where "union wait" is defined in both the BSD and SYS-V
                     29:  * environments.  Supposedly the WIFEXITED business will do the
                     30:  * right thing...
                     31:  */
                     32: 
                     33: union wait x;
                     34: 
                     35: int main()
                     36: {
                     37:     WIFEXITED(x);              /* Generates compiler error if WIFEXITED
                     38:                                 * uses an int. */
                     39:     return 0;
                     40: }

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