Fixes.

packages/tools/luajit/package.mk

@@ -19,6 +19,11 @@ post_patch() {
   mkdir -p ${PKG_BUILD}/.${HOST_NAME} && cp -r ${PKG_BUILD}/* $PKG_BUILD/.${HOST_NAME}
 }
 
+
+pre_make_host() {
+  unset TARGET_CFLAGS
+}
+
 makeinstall_host() {
   cd .${HOST_NAME}
   make amalg

scripts/build_distro

@@ -23,7 +23,7 @@ echo "Building ${DISTRO} for ${DEVICE}"
 # If ROOT is defined make sure that the build folder is a link to root rather than
 # a folder and take additional clean steps to ensure everything is built properly.
 
-if [ -z "${ROOT-set}" ]
+if [ -n "${ROOT}" ]
 then
   # Ensure there isn't a left over build directory.
   if [ -d "build.${DISTRO}-${DEVICE}.${ARCH}" ]