我正在尝试为 python 2.5 编译 pymssql。我这样做是因为我认为我拥有的 pymssql 版本是为 python 2.4 编译的。这是我得到的错误，让我认为：
/home/username/lib/python2.5/pymssql.py:30: RuntimeWarning: Python C API version mismatch for module _mssql: This Python has API version 1013, module _mssql has version 1012.
import _mssql
无论如何，我在 Ubuntu 10.10 上并通过deadsnakes ppa安装了 python2.5 和 python2.5-dev 。我已经像这样使用 python2.5 创建了一个 virtualenv
mkvirtualenv pymssql -p /usr/bin/python2.5
我已经从 pip 安装了 cython，并且正在尝试从 pip 安装 pymssql，但是我收到了这个错误
Downloading/unpacking pymssql
Running setup.py egg_info for package pymssql
Installing collected packages: pymssql
Running setup.py install for pymssql
building '_mssql' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/home/neil/virtualenv/pymssql/build/pymssql/freetds/nix_32/include -I/usr/include/python2.5 -c _mssql.c -o build/temp.linux-i686-2.5/_mssql.o -DMSDBLIB
gcc: _mssql.c: No such file or directory
gcc: no input files
error: command 'gcc' failed with exit status 1
Complete output from command /home/neil/virtualenv/pymssql/bin/python2.5 -c "import setuptools;__file__='/home/neil/virtualenv/pymssql/build/pymssql/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-cEGXRy-record/install-record.txt --install-headers /home/neil/virtualenv/pymssql/include/site/python2.5:
running install
running build
running build_ext
building '_mssql' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/home/neil/virtualenv/pymssql/build/pymssql/freetds/nix_32/include -I/usr/include/python2.5 -c _mssql.c -o build/temp.linux-i686-2.5/_mssql.o -DMSDBLIB
gcc: _mssql.c: No such file or directory
gcc: no input files
error: command 'gcc' failed with exit status 1
----------------------------------------
Command /home/neil/virtualenv/pymssql/bin/python2.5 -c "import setuptools;__file__='/home/neil/virtualenv/pymssql/build/pymssql/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-cEGXRy-record/install-record.txt --install-headers /home/neil/virtualenv/pymssql/include/site/python2.5 failed with error code 1
Storing complete log in /home/neil/.pip/pip.log
任何想法如何解决这个问题？