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Pyaudio安装错误 - '命令'gcc'失败,退出状态为1'

我正在运行Ubuntu 11.04,Python 2.7.1并想安装Pyaudio.所以我跑了,

$ sudo easy_install pyaudio

在终端和进程退出时出现以下错误消息,

Searching for pyaudio
Reading http://pypi.python.org/simple/pyaudio/
Reading http://people.csail.mit.edu/hubert/pyaudio/
Best match: pyaudio 0.2.4
Downloading http://people.csail.mit.edu/hubert/pyaudio/packages/pyaudio-0.2.4.tar.gz
Processing pyaudio-0.2.4.tar.gz
Running PyAudio-0.2.4/setup.py -q bdist_egg --dist-dir /tmp/easy_install-0Tetss/PyAudio-0.2.4/egg-dist-tmp-PYy9T8
In file included from /usr/include/python2.7/Python.h:8:0,
                 from src/_portaudiomodule.c:30:
/usr/include/python2.7/pyconfig.h:1155:0: warning: "_POSIX_C_SOURCE" redefined
/usr/include/features.h:214:0: note: this is the location of the previous definition
src/_portaudiomodule.c:31:23: fatal error: portaudio.h: No such file or directory
compilation terminated.
error: Setup script exited with error: command 'gcc' failed with exit status 1

我不确定是要在askubuntu.com上发布这个,还是在stackoveflow中发布,但无论如何它都在stackoverflow中.另外我google了一下这个问题,通过安装python-dev找到了解决了一些问题.我已经安装了python-dev.可能出了什么问题？

UPDATE

以下是安装libportaudio-dev后出现的新错误,