[Bug libfortran/53445] New: No sticky bit on VxWorks - fix chmod.c

[rbmj at verizon dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53445

             Bug #: 53445
           Summary: No sticky bit on VxWorks - fix chmod.c
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: r...@verizon.net


Created attachment 27470
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27470
fix - add conditional compiles for VxWorks

intrinsics/chmod.c makes references to S_ISVTX, but VxWorks does not have a
sticky bit.  This patch simply doesn't compile those bits, similar to the MinGW
fixes.