Use dockcross for aarch64 wheel

bindings/python/build_wheel.sh

@@ -5,10 +5,15 @@ cd bindings/python
 
 # Compile wheels
 if [ -f /opt/python/cp36-cp36m/bin/python ];then
-  /opt/python/cp36-cp36m/bin/python setup.py bdist_wheel
+  /opt/python/cp36-cp36m/bin/python setup.py bdist_wheel $@
 else
-  python3 setup.py bdist_wheel
+  python3 setup.py bdist_wheel $@
 fi
 cd dist
-auditwheel repair *.whl
-mv -f wheelhouse/*.whl .
+
+# We can't repair an aarch64 wheel on x64 hosts
+# https://github.com/pypa/auditwheel/issues/244
+if [[ ! "$*" =~ "aarch64" ]];then
+  auditwheel repair *.whl
+  mv -f wheelhouse/*.whl .
+fi