Author: mmacy
Date: Tue Jul  3 23:45:02 2018
New Revision: 335920
URL: https://svnweb.freebsd.org/changeset/base/335920

Log:
  opensolaris compat: fix compile error
  
  when opensolaris/sys/types.h is included before stddef.h ptrdiff_t
  would be typedef'd twice

Modified:
  head/sys/cddl/compat/opensolaris/sys/types.h

Modified: head/sys/cddl/compat/opensolaris/sys/types.h
==============================================================================
--- head/sys/cddl/compat/opensolaris/sys/types.h        Tue Jul  3 23:30:53 
2018        (r335919)
+++ head/sys/cddl/compat/opensolaris/sys/types.h        Tue Jul  3 23:45:02 
2018        (r335920)
@@ -72,7 +72,10 @@ typedef      u_int           minor_t;
 
 typedef        short           index_t;
 typedef        off_t           offset_t;
-typedef        long            ptrdiff_t;      /* pointer difference */
+#ifndef _PTRDIFF_T_DECLARED
+typedef        __ptrdiff_t             ptrdiff_t;      /* pointer difference */
+#define _PTRDIFF_T_DECLARED
+#endif
 typedef        int64_t         rlim64_t;
 typedef        int             major_t;
 
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