Installation fails

[Fabian Affolter]

Installing collected packages: greenlet
  Running setup.py install for greenlet ... error
    Complete output from command /opt/home-assistant/bin/python3.5 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-z8_bwodt/greenlet/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-5v51_8sf-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/home-assistant/include/site/python3.5/greenlet:
    running install
    running build
    running build_ext
    building 'greenlet' extension
    creating build
    creating build/temp.linux-armv7l-3.5
    gcc -pthread -Wno-unused-result -Wsign-compare -Wunreachable-code -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/opt/home-assistant/include -I/usr/include/python3.5m -c greenlet.c -o build/temp.linux-armv7l-3.5/greenlet.o
    gcc: error: /usr/lib/rpm/redhat/redhat-hardened-cc1: No such file or directory
    error: command 'gcc' failed with exit status 1