old_contents: package = {
  	'name':    'libxml2',
  	'version': '2.6.30',
  	'sources': [
  		'http://ftp.gnome.org/pub/gnome/sources/libxml2/2.6/%{name}-%{version}.tar.bz2'
  	]
  }
  
new_contents: package = {
  	'name':    'libxml2',
  	'version': '2.7.6',
  	'sources': [
  		'ftp://xmlsoft.org/%{name}/%{name}-%{version}.tar.gz'			
  	],
  	'build': [
  		'%{__configure} --with-python=no',
  		'%{__make}'
  	]
  }
  
subject: bump libxml2 to 2.7.6 from xmlsoft.org