?RCS: $Id: d_msg_flags.U 170 2013-08-30 16:47:47Z rmanfredi $
?RCS:
?RCS: Copyright (c) 2006, Christian Biere
?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:
?MAKE:d_msghdr_msg_flags: Trylink cat i_systypes i_sysselct i_syssock \
	i_winsock2 i_mswsock d_windows
?MAKE:	-pick add $@ %<
?S:d_msghdr_msg_flags:
?S:	This variable conditionally defines the HAS_MSGHDR_MSG_FLAGS symbol,
?S:	which indicates to the C program that struct msghdr has a member
?S:	msg_flags.
?S:.
?C:HAS_MSGHDR_MSG_FLAGS:
?C:	This symbol, if defined, indicates that struct msghdr has a
?C:	member msg_flags.
?C:.
?H:#$d_msghdr_msg_flags HAS_MSGHDR_MSG_FLAGS		/**/
?H:.
?LINT:set d_msghdr_msg_flags
: check for msg_flags in struct msghdr
$cat >try.c <<EOC
#$i_systypes I_SYS_TYPES
#$i_sysselct I_SYS_SELECT
#$i_syssock I_SYS_SOCKET
#$i_winsock2 I_WINSOCK2
#$i_mswsock I_MSWSOCK
#$d_windows WINDOWS_SYSTEM
#ifdef WINDOWS_SYSTEM
#define WINVER 0x0501
#endif
#ifdef I_SYS_TYPES
#include <sys/types.h>
#endif
#ifdef I_SYS_SOCKET
#include <sys/socket.h>
#endif
#ifdef I_WINSOCK2
#include <Winsock2.h>
#endif
#ifdef I_MSWSOCK
#include <Mswsock.h>
#endif
int main(void)
{
	struct msghdr msg;
	msg.msg_flags |= 1;
	return 0;
}
EOC
cyn="whether 'struct msghdr' has a 'msg_flags' member"
set d_msghdr_msg_flags
eval $trylink