Update conda build recipe

FieldTools/meta.yaml

 
 package:
   name: pyfield
-  version: 0.1.2
+  version: "0.1.3i"
 
 source:
-  # Get it from GIT XXX Git not yet public
-  #git_url: https://gitup.uni-potsdam.de/matusche/fieldtools.git
-  #git_tag: i1 # interim branch
   # Get a tarball from GFZ data services
-  url: ftp://datapub.gfz-potsdam.de/download/10.5880.FIDGEO.2019.033/fieldtools.tar.gz
+  url: ftp://datapub.gfz-potsdam.de/download/10.5880.FIDGEO.2019.033/fieldtools-i2.tar.gz
+  sha256: b297d853f30abdca968af2e3f52a5f62f0991485b23590897b7149c7171f3127
 
 build:
   # Not quite sure about $PYTHON; Docs are just using bare 'python'
-  script: $PYTHON setup.py build && $PYTHON setup.py install
+  script:
+    - export CPPFLAGS='-Wno-deprecated'
+    - $PYTHON setup.py build
+    - $PYTHON setup.py install
 
 requirements:
   build:
-    - {{ compiler('cxx') }}
+    - {{ compiler('cxx') }}>=9.3  # XXX Versioning scheme only compatible with GCC
     - swig
     - numpy  # setup.py relies on numpy
-    - pkg-config
+    - pkg-config  # setup.py relies on pkg-config
     - eigen
 
   host:
     - python
     - setuptools
     - numpy
-    - eigen  # Not sure if required
+    - pkg-config  # setup.py relies on pkg-config
+    - eigen
 
   run:
     - python
     - numpy
-    - eigen  # Not sure if required
 
 test:
   commands: