old_contents: from _external import *
  
  tiff = LibWithHeaderChecker('tiff','tiff.h','c',call='TIFFGetVersion();')
  
  
new_contents: from _external import *
  
  tiff = LibWithHeaderChecker('tiff',['tiff.h', 'tiffio.h'],'c',call='TIFFGetVersion();')
  
  
subject: add tiff include