Image bundled with cython,numpy,gdal,rasterio python bindings

- numpy >= 1.17 needs a c99 compiler setting

Author: Darren Weber

Dockerfile

@@ -179,5 +179,9 @@ ENV \
 
 ENV PATH=$PREFIX/bin:$PATH
 
-RUN pip3 install pip -U
-RUN pip3 install cython numpy --no-binary numpy
+# numpy 1.17 requires an explicit c99 compiler option
+# - https://github.com/numpy/numpy/pull/12783/files
+ENV CFLAGS='-std=c99'
+RUN pip3 install pip -U && \
+    pip3 install cython numpy "gdal==${GDAL_VERSION}" rasterio --no-binary :all:
+