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+?RCS: $Id: d_setegid.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_setegid.U,v $
+?RCS: Revision 3.0 1993/08/18 12:07:07 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?RCS:
+?MAKE:d_setegid: Trylink cat i_unistd
+?MAKE: -pick add $@ %<
+?S:d_setegid:
+?S: This variable conditionally defines the HAS_SETEGID symbol, which
+?S: indicates to the C program that the setegid() routine is available
+?S: to change the effective gid of the current program.
+?S:.
+?C:HAS_SETEGID (SETEGID):
+?C: This symbol, if defined, indicates that the setegid routine is available
+?C: to change the effective gid of the current program.
+?C:.
+?H:#$d_setegid HAS_SETEGID /**/
+?H:.
+?LINT:set d_setegid
+: see if setegid exists
+$cat >try.c <<EOC
+#include <sys/types.h>
+#$i_unistd I_UNISTD
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+int main(void)
+{
+ static int ret;
+ static gid_t gid;
+ ret |= setegid(gid);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=setegid
+set d_setegid
+eval $trylink
+