?RCS: $Id: i_neterrno.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: Original Author: Andy Dougherty <doughera@lafcol.lafayette.edu>
?RCS:
?RCS: $Log: i_neterrno.U,v $
?RCS: Revision 3.0.1.3  1994/10/29  16:20:29  ram
?RCS: patch36: forgot to initialize 'val' to an empty value (ADO)
?RCS:
?RCS: Revision 3.0.1.2  1994/08/29  16:22:10  ram
?RCS: patch32: removed spurious echo
?RCS:
?RCS: Revision 3.0.1.1  1994/06/20  07:02:05  ram
?RCS: patch30: created by ADO
?RCS:
?MAKE:i_neterrno: Inhdr +cc +ccflags rm Setvar
?MAKE:	-pick add $@ %<
?S:i_neterrno:
?S:	This variable conditionally defines the I_NET_ERRNO symbol, which
?S:	indicates to the C program that <net/errno.h> exists and should
?S:	be included.
?S:.
?C:I_NET_ERRNO:
?C:	This symbol, if defined, indicates that <net/errno.h> exists and 
?C:	should be included.
?C:.
?H:#$i_neterrno I_NET_ERRNO		/**/
?H:.
?LINT:set i_neterrno
: see if net/errno.h is available
val=''
set net/errno.h val
eval $inhdr

: Unfortunately, it causes problems on some systems.  Arrgh.
case "$val" in
$define)
	cat > try.c <<'EOM'
#include <stdio.h>
#include <errno.h>
#include <net/errno.h>
int func()
{
	return ENOTSOCK;
}
EOM
	if $cc $ccflags -c try.c >/dev/null 2>&1; then
		echo "We'll be including <net/errno.h>." >&4
	else
		echo "We won't be including <net/errno.h>." >&4
		val="$undef"
	fi
	$rm -f try.* try
	;;
esac
set i_neterrno
eval $setvar