Impossible d'installer pychromecast / wheel

Hello,

Pour les besoins d'un script custom que je suis en train de développer, j'ai besoin de pychromecast. Celui-ci dépend de wheel, et l'installation plante avec pip :

Building wheels for collected packages: netifaces
  Running setup.py bdist_wheel for netifaces
  Complete output from command /usr/local/python3/bin/python3.4 -c "import setuptools;__file__='/tmp/pip-build-bbhh_7hb/netifaces/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmphmb0amq0pip-wheel-:
  running bdist_wheel
  running build
  running build_ext
  checking for getifaddrs...not found.
  checking for getnameinfo...not found.
  checking for socket IOCTLs...not found.
  checking for optional header files...none found.
  checking whether struct sockaddr has a length field...no.
  checking which sockaddr_xxx structs are defined...none!
  checking for routing socket support...no.
  checking for sysctl(CTL_NET...) support...no.
  checking for netlink support...no.
  building 'netifaces' extension
  /spksrc/toolchains/syno-x64-5.1/work/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-gcc -Wno-unused-result -Werror=declaration-after-statement -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/spksrc/spk/python3/work-x64-5.1/install//usr/local/python3/include -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC -DNETIFACES_VERSION=0.10.4 -I/usr/local/python3/include/python3.4m -c netifaces.c -o build/temp.linux-x86_64-3.4/netifaces.o
  error: command '/spksrc/toolchains/syno-x64-5.1/work/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for netifaces
Failed to build netifaces
Installing collected packages: enum-compat, netifaces, zeroconf, requests, protobuf, pychromecast
  Running setup.py install for netifaces
    Complete output from command /usr/local/python3/bin/python3.4 -c "import setuptools, tokenize;__file__='/tmp/pip-build-bbhh_7hb/netifaces/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-hyu54efu-record/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_ext
    checking for getifaddrs...not found. (cached)
    checking for getnameinfo...not found. (cached)
    checking for socket IOCTLs...not found. (cached)
    checking for optional header files...none found. (cached)
    checking whether struct sockaddr has a length field...no. (cached)
    checking which sockaddr_xxx structs are defined...none! (cached)
    checking for routing socket support...no. (cached)
    checking for sysctl(CTL_NET...) support...no. (cached)
    checking for netlink support...no. (cached)
    building 'netifaces' extension
    /spksrc/toolchains/syno-x64-5.1/work/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-gcc -Wno-unused-result -Werror=declaration-after-statement -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/spksrc/spk/python3/work-x64-5.1/install//usr/local/python3/include -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC -DNETIFACES_VERSION=0.10.4 -I/usr/local/python3/include/python3.4m -c netifaces.c -o build/temp.linux-x86_64-3.4/netifaces.o
    error: command '/spksrc/toolchains/syno-x64-5.1/work/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-gcc' failed with exit status 1

    ----------------------------------------
Command "/usr/local/python3/bin/python3.4 -c "import setuptools, tokenize;__file__='/tmp/pip-build-bbhh_7hb/netifaces/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-hyu54efu-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-bbhh_7hb/netifaces

root@NAS ~

J'ai tout retourné, mais en vain :(

Vous auriez une idée ?