In http://docs.openstack.org/developer/keystone/setup.html [Fedora 19+].
when I execute command "python tools/install_venv.py", appear error as follow:
building '_cffi_backend' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/c
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -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 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -DUSE__THREAD -I/usr/include/ffi -I/usr/include/libffi -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-x86_64-2.7/c/_cffi_backend.o
c/_cffi_backend.c:13:17:：ffi.h
error: command 'gcc' failed with exit status 1
----------------------------------------
Command "/usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-scQlSO/cffi/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-BRdoTg-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-scQlSO/cffi
Command "tools/with_venv.sh pip install --upgrade -r /root/keystone/requirements.txt -r /root/keystone/test-requirements.txt" failed.
Fix proposed to branch: master
Review: https:/