old_contents: #!/usr/bin/env python
  import os
  from distutils.core import setup, Extension
  
  gcc_bin = os.environ.get('CC', 'gcc')
  includes = os.environ.get('INCLUDE', '/usr/include')
  libgccfilename = os.popen(gcc_bin + " -print-libgcc-file-name").read().strip()
  
  c_nviro = Extension('ds1302',
  					sources = ['python.c'],
  					extra_link_args = [libgccfilename,],
  					libraries = ['wiringPi', 'm'],
  					extra_compile_args = ['-std=c99'],
  					include_dirs=[includes],
  				)
  
  setup(name='rpi_rtc',
  	  version="0.1",
  	  description='Python library for handling DS1302 RTC with Raspberry Pi',
  	  ext_modules=[c_nviro],
  	  py_modules=['rpi_time'],
  	  )
  
new_contents: #!/usr/bin/env python
  from distutils.core import setup, Extension
  
  c_nviro = Extension('ds1302',
  					sources = ['python.c'],
  					libraries = ['wiringPi', 'm'],
  					extra_compile_args = ['-std=c99'],
  				)
  
  setup(name='rpi_rtc',
  	  version="0.1",
  	  description='Python library for handling DS1302 RTC with Raspberry Pi',
  	  ext_modules=[c_nviro],
  	  py_modules=['rpi_time', 'hwclock'],
  	  )
  
subject: Add hwclock.py to setup script, clean up setup script