Make sure <sys/dlpi.h> is usable; it exists in SCO OpenServer 5, but it

doesn't define what we need for DLPI support.

configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.152 .
+# From configure.in Revision: 1.153 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.59.
 #
@@ -6845,6 +6845,69 @@ echo "${ECHO_T}${enable_yydebug-no}" >&6
 case "$V_PCAP" in
 
 dlpi)
+	echo "$as_me:$LINENO: checking whether <sys/dlpi.h> is usable" >&5
+echo $ECHO_N "checking whether <sys/dlpi.h> is usable... $ECHO_C" >&6
+	if test "${ac_cv_sys_dlpi_usable+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+			#include <sys/types.h>
+			#include <sys/time.h>
+			#include <sys/dlpi.h>
+
+int
+main ()
+{
+int i = DL_PROMISC_PHYS;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_dlpi_usable=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_sys_dlpi_usable=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+	echo "$as_me:$LINENO: result: $ac_cv_sys_dlpi_usable" >&5
+echo "${ECHO_T}$ac_cv_sys_dlpi_usable" >&6
+	if test $ac_cv_sys_dlpi_usable = no ; then
+		{ { echo "$as_me:$LINENO: error: <sys/dlpi.h> is not usable on this system; it probably has a non-standard DLPI" >&5
+echo "$as_me: error: <sys/dlpi.h> is not usable on this system; it probably has a non-standard DLPI" >&2;}
+   { (exit 1); exit 1; }; }
+	fi
 	echo "$as_me:$LINENO: checking for /dev/dlpi device" >&5
 echo $ECHO_N "checking for /dev/dlpi device... $ECHO_C" >&6
 	if test -c /dev/dlpi ; then

configure.in

@@ -1,12 +1,12 @@
-dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.152 2008-06-11 09:05:10 guy Exp $ (LBL)
+dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.153 2008-06-12 19:59:57 guy Exp $ (LBL)
 dnl
 dnl Copyright (c) 1994, 1995, 1996, 1997
 dnl	The Regents of the University of California.  All rights reserved.
 dnl
 dnl Process this file with autoconf to produce a configure script.
 dnl
 
-AC_REVISION($Revision: 1.152 $)
+AC_REVISION($Revision: 1.153 $)
 AC_PREREQ(2.50)
 AC_INIT(pcap.c)
 
@@ -422,6 +422,21 @@ AC_MSG_RESULT(${enable_yydebug-no})
 case "$V_PCAP" in
 
 dlpi)
+	AC_MSG_CHECKING(whether <sys/dlpi.h> is usable)
+	AC_CACHE_VAL(ac_cv_sys_dlpi_usable,
+		AC_TRY_COMPILE(
+		    [
+			#include <sys/types.h>
+			#include <sys/time.h>
+			#include <sys/dlpi.h>
+		    ],
+		    [int i = DL_PROMISC_PHYS;],
+		    ac_cv_sys_dlpi_usable=yes,
+		    ac_cv_sys_dlpi_usable=no))
+	AC_MSG_RESULT($ac_cv_sys_dlpi_usable)
+	if test $ac_cv_sys_dlpi_usable = no ; then
+		AC_MSG_ERROR(<sys/dlpi.h> is not usable on this system; it probably has a non-standard DLPI)
+	fi
 	AC_MSG_CHECKING(for /dev/dlpi device)
 	if test -c /dev/dlpi ; then
 		AC_MSG_RESULT(yes)