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+?RCS: $Id: d_msg.U,v 3.0 1993/08/18 12:06:37 ram Exp $
+?RCS: Copyright (c) 1991-1993, Raphael Manfredi
+?RCS: You may redistribute only under the terms of the Artistic Licence,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic Licence; a copy of which may be found at the root
+?RCS: of the source tree for dist 3.0.
+?RCS: $Log: d_msg.U,v $
+?RCS: Revision 3.0 1993/08/18 12:06:37 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?MAKE:d_msg: test d_msgctl d_msgget d_msgsnd d_msgrcv Setvar Findhdr
+?MAKE: -pick add $@ %<
+?S: This variable conditionally defines the HAS_MSG symbol, which
+?S: indicates that the entire msg*(2) library is present.
+?C: This symbol, if defined, indicates that the entire msg*(2) library is
+?C: supported (IPC mechanism based on message queues).
+?H:#$d_msg HAS_MSG /**/
+: see how much of the 'msg*(2)' library is present.
+echo " "
+case "$d_msgctl$d_msgget$d_msgsnd$d_msgrcv" in
+: we could also check for sys/ipc.h ...
+if $h_msg && $test `./findhdr sys/msg.h`; then
+ echo "You have the full msg*(2) library." >&4
+ echo "You don't have the full msg*(2) library." >&4