问使用pip安装cx_Oracle时出现问题

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(test_env1)[ django@hostname ~ ] $ pip install cx_Oracle
Collecting cx_Oracle
  Using cached cx_Oracle-5.3.tar.gz
Installing collected packages: cx-Oracle
  Running setup.py install for cx-Oracle ... error
    Complete output from command /opt/svcacct/django/test_env1/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-4525wz/cx-Oracle/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-BoJI2V-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/svcacct/django/test_env1/include/site/python2.7/cx-Oracle:
    running install
    running build
    running build_ext
    building 'cx_Oracle' extension
    creating build
    creating build/temp.linux-x86_64-2.7-11g
    creating build/temp.linux-x86_64-2.7-11g/src
    gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -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 -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 -I/app/oracle/instantclient_11_1/sdk/include -I/usr/include/python2.7 -c src/cx_Oracle.c -o build/temp.linux-x86_64-2.7-11g/src/cx_Oracle.o -DBUILD_VERSION=5.3
    src/cx_Oracle.c:28:2: error: #error Oracle 11.2 or later client libraries are required for building
     #error Oracle 11.2 or later client libraries are required for building
      ^
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/opt/svcacct/django/test_env1/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-4525wz/cx-Oracle/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-BoJI2V-record/install-record.txt --single-version-externally-managed --compile --install-headers /opt/svcacct/django/test_env1/include/site/python2.7/cx-Oracle" failed with error code 1 in /tmp/pip-build-4525wz/cx-Oracle/