Copyright Digital Equipment Corp. All rights reserved.

DECC$POSIX_STYLE_UID

   With DECC$POSIX_STYLE_UID enabled, 32-bit UIDs and GIDs are
   interpreted as POSIX style identifiers.

   With this logical name disabled, UIDs and GIDs are derived from
   the process UIC.

   This feature is only available on OpenVMS systems providing POSIX
   style UID and GID support.