title: error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 while installing pygsr,pyaudio
body: <p>I am using Python 2.7.12 in Ubuntu 16.04 LTS. I tried installing <code>pyaudio</code> and <code>pygsr</code> by using commands </p>
  
  <pre><code>sudo pip install -U pyaudio
  sudo pip install -U pygsr
  </code></pre>
  
  <p>and I got the output (error) as below:</p>
  
  <pre><code>    Collecting pyaudio
    Downloading PyAudio-0.2.10.tar.gz (287kB)
      100% |████████████████████████████████| 296kB 762kB/s 
  Installing collected packages: pyaudio
    Running setup.py install for pyaudio ... error
      Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-Unc_F6/pyaudio/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-2uTcg2-record/install-record.txt --single-version-externally-managed --compile:
      running install
      running build
      running build_py
      creating build
      creating build/lib.linux-x86_64-2.7
      copying src/pyaudio.py -&gt; build/lib.linux-x86_64-2.7
      running build_ext
      building '_portaudio' extension
      creating build/temp.linux-x86_64-2.7
      creating build/temp.linux-x86_64-2.7/src
      x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c src/_portaudiomodule.c -o build/temp.linux-x86_64-2.7/src/_portaudiomodule.o
      src/_portaudiomodule.c:29:23: fatal error: portaudio.h: No such file or directory
      compilation terminated.
      error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
  
      ----------------------------------------
  Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-Unc_F6/pyaudio/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-2uTcg2-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-Unc_F6/pyaudio/
  </code></pre>