fix image for aarch64, ppc64le, s390x

.travis.yml

@@ -195,6 +195,7 @@ matrix:
         - MB_ML_VER=2014
         - TEST_BUILDS=1
         - PLAT=aarch64
+        - DOCKER_TEST_IMAGE=multibuild/xenial_{PLAT}
     #  s390x builds
     - os: linux
       arch: s390x
@@ -203,6 +204,7 @@ matrix:
         - MB_ML_VER=2014
         - TEST_BUILDS=1
         - PLAT=s390x
+        - DOCKER_TEST_IMAGE=multibuild/xenial_{PLAT}
     #  ppc64le builds
     - os: linux
       arch: ppc64le
@@ -211,6 +213,7 @@ matrix:
         - MB_ML_VER=2014
         - TEST_BUILDS=1
         - PLAT=ppc64le
+        - DOCKER_TEST_IMAGE=multibuild/xenial_{PLAT}
 
 script:
   - export ENV_VARS_PATH="tests/env_vars.sh"

common_utils.sh

@@ -333,17 +333,22 @@ function install_wheel {
     #     WHEEL_SDIR  (optional, default "wheelhouse")
     #     TEST_DEPENDS  (optional, default "")
     #     MANYLINUX_URL (optional, default "") (via pip_opts function)
+    set -x
     local wheelhouse=$(abspath ${WHEEL_SDIR:-wheelhouse})
     if [ -n "$TEST_DEPENDS" ]; then
         while read TEST_DEPENDENCY; do
             pip install $(pip_opts) $@ $TEST_DEPENDENCY
         done <<< "$TEST_DEPENDS"
     fi
-
+    ls .
+    which pip
+    which python
     pip install packaging
+    get_platform
     local supported_wheels=$(python $MULTIBUILD_DIR/supported_wheels.py $wheelhouse/*.whl)
     if [ -z "$supported_wheels" ]; then
         echo "ERROR: no supported wheels found"
+        ls $wheelhouse/*.whl
         exit 1
     fi
     # Install compatible wheel

supported_wheels.py

@@ -34,6 +34,5 @@ def main():
         if supported.intersection(tags):
             print(fname)
 
-
 if __name__ == '__main__':
     main()