Pin pyfftw to 0.12 because 0.13 seems broken

Author: mikaem

azure-pipelines.yml

@@ -58,7 +58,7 @@ jobs:
 
   - bash: |
       conda build --no-test --python $PYTHON_VERSION ./conf
-      conda create --name mpi4py_fft_env mpi4py_fft_test coverage scipy python=$PYTHON_VERSION --use-local
+      conda create --name mpi4py_fft_env mpi4py_fft_test coverage scipy pyfftw=0.12 python=$PYTHON_VERSION --use-local
       source activate mpi4py_fft_env
       pip install codecov
       cd tests && ./runtests.sh

conf/meta.yaml

@@ -37,7 +37,7 @@ test:
     - coverage
     - codecov
     - scipy
-    #- pyfftw
+    - pyfftw 0.12
 
   source_files:
     - tests