From 85b0589b4843c03e8e6fd9416d71ea449a73c5c0 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Thu, 3 Nov 2011 10:46:16 +0100
Subject: [PATCH] make configure cross compile safe

According to Kevin Tian:
Upstream-Status: Pending

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Shane Wang <shane.wang@intel.com>

diff -r e4e1b14b9c4a configure
--- a/configure	Sun Jan 22 15:26:47 2012 +0800
+++ b/configure	Sun Jan 22 15:29:38 2012 +0800
@@ -2,6 +2,7 @@
 # This is not an autconf generated configure
 #
 INCLUDE=${1:-"$PWD/include"}
+SYSROOT=$1
 
 check_atm()
 {
@@ -13,7 +14,7 @@
 	return 0;
 }
 EOF
-gcc -I$INCLUDE -o /tmp/atmtest /tmp/atmtest.c -latm >/dev/null 2>&1 
+$CC -I$INCLUDE -o /tmp/atmtest /tmp/atmtest.c -latm >/dev/null 2>&1 
 if [ $? -eq 0 ]
 then
     echo "TC_CONFIG_ATM:=y" >>Config
@@ -47,7 +48,7 @@
 
 EOF
 
-if gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL $(pkg-config xtables --cflags --libs) -ldl >/dev/null 2>&1
+if $CC -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL $(pkg-config xtables --cflags --libs) -ldl >/dev/null 2>&1
 then
 	echo "TC_CONFIG_XT:=y" >>Config
 	echo "using xtables"
@@ -84,7 +85,7 @@
 }
 
 EOF
-gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
+$CC -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
 
 if [ $? -eq 0 ]
 then
@@ -124,7 +125,7 @@
 }
 
 EOF
-gcc -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
+$CC -I$INCLUDE $IPTC -o /tmp/ipttest /tmp/ipttest.c $IPTL -ldl >/dev/null 2>&1
 
 if [ $? -eq 0 ]
 then
@@ -145,7 +146,7 @@
 check_ipt_lib_dir()
 {
 	IPT_LIB_DIR=""
-	for dir in /lib /usr/lib /usr/local/lib
+	for dir in $SYSROOT/lib $SYSROOT/usr/lib $SYSROOT/usr/local/lib
 	do
 		for file in $dir/{xtables,iptables}/lib*t_*so ; do
 			if [ -f $file ]; then
@@ -168,7 +169,7 @@
 	return 0;
 }
 EOF
-gcc -I$INCLUDE -o /tmp/setnstest /tmp/setnstest.c >/dev/null 2>&1
+$CC -I$INCLUDE -o /tmp/setnstest /tmp/setnstest.c >/dev/null 2>&1
 if [ $? -eq 0 ]
 then
 	echo "IP_CONFIG_SETNS:=y" >>Config