lots of other places define NULL

SCCS-vsn: sys/sys/unistd.h 5.3

diff --git a/usr/src/sys/sys/unistd.h b/usr/src/sys/sys/unistd.h
index cbd06da..2348a56 100644 (file)
--- a/usr/src/sys/sys/unistd.h
+++ b/usr/src/sys/sys/unistd.h
@@ -14,7 +14,7 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)unistd.h    5.2 (Berkeley) %G%
+ *     @(#)unistd.h    5.3 (Berkeley) %G%

  */
 
 /* compile-time symbolic constants */
  */
 
 /* compile-time symbolic constants */


@@ -43,7 +43,9 @@
 #define        STDOUT_FILENO           1       /* standard output value, stdout */
 #define        STDERR_FILENO           2       /* standard error value, stdout */
 
 #define        STDOUT_FILENO           1       /* standard output value, stdout */
 #define        STDERR_FILENO           2       /* standard error value, stdout */
 

+#ifndef NULL

 #define        NULL    0                       /* null pointer constant */
 #define        NULL    0                       /* null pointer constant */

+#endif

 
 /* configurable pathname variables */
 #define        _PC_LINK_MAX            1
 
 /* configurable pathname variables */
 #define        _PC_LINK_MAX            1