This recipe has a python script which *appends* a local directory to
sys.path and then tries to include a local module called build. However
if python3-build-native is present that is included instead.
Fix by prepending the local directory to sys.path instead.
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>