在Windows 64位上安装cx_Oracle时，命令'gcc'失败，退出状态为1

我正在尝试cx_Oracle在Windows 7-64位版本上安装。我以前在这里有一个关于cx_Oracle在Windows上安装的问题，我自己解决了这个问题；但是它是Windows 7的32位版本；在这里，我遇到了安装它的新问题。

我应该提到，我还部署了64位版本的MinGW Microsoft Visual Studio 2008。对于我俩command 'gcc' failed with exit status 1。我easy_install cx_Oracle在Microsoft Visual Studio 2008控制台中尝试过，得到了以下输出（这是我从Windows默认命令行运行命令时确切得到的结果）：

Setting environment for using Microsoft Visual Studio 2008 x86 tools.

C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC>easy_install cx_Oracle
Searching for cx-Oracle
Reading http://pypi.python.org/simple/cx_Oracle/
Reading http://cx-oracle.sourceforge.net
Reading http://starship.python.net/crew/atuining
Best match: cx-Oracle 5.1.2
Downloading http://prdownloads.sourceforge.net/cx-oracle/cx_Oracle-5.1.2.tar.gz?
download
Processing cx_Oracle-5.1.2.tar.gz
Writing c:\users\user\appdata\local\temp\easy_install-txvil3\cx_Oracle-5.1.2\set
up.cfg
Running cx_Oracle-5.1.2\setup.py -q bdist_egg --dist-dir c:\users\user\appdata\l
ocal\temp\easy_install-txvil3\cx_Oracle-5.1.2\egg-dist-tmp-pjitbi
In file included from C:\oracle\instantclient_11_2\sdk\include/oci.h:541:0,
                 from cx_Oracle.c:10:
C:\oracle\instantclient_11_2\sdk\include/oratypes.h:236:25: error: expected '=',
 ',', ';', 'asm' or '__attribute__' before 'ubig_ora'
C:\oracle\instantclient_11_2\sdk\include/oratypes.h:237:25: error: expected '=',
 ',', ';', 'asm' or '__attribute__' before 'sbig_ora'
In file included from C:\oracle\instantclient_11_2\sdk\include/oci.h:3045:0,
                 from cx_Oracle.c:10:
C:\oracle\instantclient_11_2\sdk\include/ociap.h:7459:40: error: unknown type na
me 'ubig_ora'
C:\oracle\instantclient_11_2\sdk\include/ociap.h:7471:36: error: unknown type na
me 'ubig_ora'
C:\oracle\instantclient_11_2\sdk\include/ociap.h:8278:23: error: unknown type na
me 'sbig_ora'
C:\oracle\instantclient_11_2\sdk\include/ociap.h:8278:46: error: unknown type na
me 'sbig_ora'
In file included from Connection.c:776:0,
                 from SessionPool.c:139,
                 from cx_Oracle.c:198:
Callback.c: In function 'Callback_BindByNameArgs':
Callback.c:73:15: warning: variable 'errorHandle' set but not used [-Wunused-but
-set-variable]
Callback.c:72:15: warning: variable 'bindHandlePtr' set but not used [-Wunused-b
ut-set-variable]
Callback.c: In function 'Callback_DefineByPosArgs':
Callback.c:120:15: warning: variable 'errorHandle' set but not used [-Wunused-bu
t-set-variable]
Callback.c:118:17: warning: variable 'defineHandle' set but not used [-Wunused-b
ut-set-variable]
Callback.c: In function 'Callback_ExecuteArgs':
Callback.c:158:15: warning: variable 'errorHandle' set but not used [-Wunused-bu
t-set-variable]
Callback.c:157:16: warning: variable 'serviceContextHandle' set but not used [-W
unused-but-set-variable]
Callback.c: In function 'Callback_FetchArgs':
Callback.c:181:15: warning: variable 'errorHandle' set but not used [-Wunused-bu
t-set-variable]
Callback.c: In function 'Callback_PrepareArgs':
Callback.c:206:15: warning: variable 'errorHandle' set but not used [-Wunused-bu
t-set-variable]
error: Setup script exited with error: command 'gcc' failed with exit status 1

我也尝试从源代码安装它python setup.py build --compiler=mingw32 install，但出现了同样的错误。

我也试过easy_install http://prdownloads.sourceforge.net/cx-oracle/cx_Oracle-5.1.2-11g.win-amd64-py2.7.msi?download; URL是cx_Oracle Windows amd64安装程序（Oracle 11g，Python 2.7）的sourceForge链接。我懂了：

C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC>easy_install http://prdown
loads.sourceforge.net/cx-oracle/cx_Oracle-5.1.2-11g.win-amd64-py2.7.msi?download

Downloading http://prdownloads.sourceforge.net/cx-oracle/cx_Oracle-5.1.2-11g.win
-amd64-py2.7.msi?download
Processing cx_Oracle-5.1.2-11g.win-amd64-py2.7.msi
error: Not a recognized archive type: c:\users\user\appdata\local\temp\easy_inst
all-ys4fjr\cx_Oracle-5.1.2-11g.win-amd64-py2.7.msi

为了完整起见，我应该说，我在使用Oracle客户端11.我已设置PATH和ORACLE_HOME环境变量。我的计算机中的其他数据库应用程序（例如Navicat）与此客户端可以很好地协同工作。知道这个安装有什么问题吗？