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--- eccodes-1.1.0.unchanged/setup.py	2020-10-15 17:56:17.000000000 +0200
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+++ eccodes-1.1.0/setup.py	2021-01-23 20:08:50.936683323 +0100
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@@ -45,6 +45,8 @@ setuptools.setup(
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     license="Apache License Version 2.0",
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     url="https://github.com/ecmwf/eccodes-python",
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     packages=setuptools.find_packages(),
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+    setup_requires=["cffi"],
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+    cffi_modules=["builder.py:ffibuilder"],
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     include_package_data=True,
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     install_requires=[
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         "attrs",