diff --git a/external/lua/luajit/build_ios.sh b/external/lua/luajit/build_ios.sh
index 52ea997371..1d68390735 100755
--- a/external/lua/luajit/build_ios.sh
+++ b/external/lua/luajit/build_ios.sh
@@ -7,20 +7,35 @@ SRCDIR=$DIR/src
 DESTDIR=$DIR/prebuilt/ios
 IXCODE=`xcode-select -print-path`
 ISDK=$IXCODE/Platforms/iPhoneOS.platform/Developer
-ISDKVER=iPhoneOS6.1.sdk
+INFOPLIST_PATH=$IXCODE/Platforms/iPhoneOS.platform/version.plist
+BUNDLE_ID=$(/usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString" "${INFOPLIST_PATH}")
+ISDKVER=iPhoneOS${BUNDLE_ID}.sdk
+
+if [ "${ISDKVER}" = "iPhoneOS7.0.sdk" ] || [ "${ISDKVER}" = "iPhoneOS7.1.sdk" ]; then
+ISDKP=$IXCODE/usr/bin/
+else
 ISDKP=$ISDK/usr/bin/
+fi
 
 rm "$DESTDIR"/*.a
 cd $SRCDIR
 
 make clean
 ISDKF="-arch armv7 -isysroot $ISDK/SDKs/$ISDKVER"
+if [ ${ISDKVER} = "iPhoneOS7.0.sdk" ] || [ ${ISDKVER} = "iPhoneOS7.1.sdk" ]; then
+make HOST_CC="gcc -m32 -arch i386" TARGET_FLAGS="$ISDKF" TARGET=arm TARGET_SYS=iOS
+else
 make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" TARGET_SYS=iOS
+fi
 mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-armv7.a
 
 make clean
 ISDKF="-arch armv7s -isysroot $ISDK/SDKs/$ISDKVER"
+if [ ${ISDKVER} = "iPhoneOS7.0.sdk" ] || [ ${ISDKVER} = "iPhoneOS7.1.sdk" ]; then
+make HOST_CC="gcc -m32 -arch i386" TARGET_FLAGS="$ISDKF" TARGET=arm TARGET_SYS=iOS
+else
 make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" TARGET_SYS=iOS
+fi
 mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-armv7s.a
 
 make clean