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+?RCS: $Id: d_shm.U 167 2013-05-08 17:58:00Z rmanfredi $
+?RCS:
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?RCS:
+?RCS: You may redistribute only under the terms of the Artistic License,
+?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 License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS:
+?RCS: $Log: d_shm.U,v $
+?RCS: Revision 3.0 1993/08/18 12:07:17 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?RCS:
+?MAKE:d_shm: test d_shmctl d_shmget d_shmat d_shmdt Setvar Findhdr
+?MAKE: -pick add $@ %<
+?S:d_shm:
+?S: This variable conditionally defines the HAS_SHM symbol, which
+?S: indicates that the entire shm*(2) library is present.
+?S:.
+?C:HAS_SHM:
+?C: This symbol, if defined, indicates that the entire shm*(2) library is
+?C: supported.
+?C:.
+?H:#$d_shm HAS_SHM /**/
+?H:.
+?T:h_shm
+?LINT:set d_shm
+: see how much of the 'shm*(2)' library is present.
+h_shm=true
+echo " "
+case "$d_shmctl$d_shmget$d_shmat$d_shmdt" in
+*"$undef"*) h_shm=false;;
+esac
+: we could also check for sys/ipc.h ...
+if $h_shm && $test `./findhdr sys/shm.h`; then
+ echo "You have the full shm*(2) library." >&4
+ val="$define"
+else
+ echo "You don't have the full shm*(2) library." >&4
+ val="$undef"
+fi
+set d_shm
+eval $setvar
+