old_contents: {
  	'repo_type' : 'git',
  	'url' : 'http://git.code.sf.net/p/lensfun/code',
  	'rename_folder' : 'lensfun_git',
  	'conf_system' : 'cmake',
  	'source_subfolder' : '_build',
  	'run_post_patch' : [
  		'sed -i.bak \'s/GLIB2_INCLUDE_DIRS/GLIB2_STATIC_INCLUDE_DIRS/\' "../CMakeLists.txt"',
  		'sed -i.bak \'s/GLIB2_LIBRARIES/GLIB2_STATIC_LIBRARIES/\' "../CMakeLists.txt"',
  		'sed -i.bak \'s/Libs: -L${{libdir}} -llensfun.*/Libs: -L${{libdir}} -llensfun -lstdc++/\' "../libs/lensfun/lensfun.pc.cmake"',
  	],
  	'configure_options' : '.. {cmake_prefix_options} -DCMAKE_INSTALL_PREFIX={target_prefix} -DCMAKE_INSTALL_DATAROOTDIR={target_prefix}/share -DBUILD_DOC=0 -DBUILD_STATIC=1 -DBUILD_SHARED_LIBS=0 -DBUILD_TESTS=0 -DBUILD_LENSTOOL=0',
  	'depends_on': [ 'libpng' ],
  	'_info' : { 'version' : None, 'fancy_name' : 'lensfun (library)' },
  }
new_contents: {
  	'repo_type' : 'git',
  	'url' : 'http://git.code.sf.net/p/lensfun/code',
  	'rename_folder' : 'lensfun_git',
  	'conf_system' : 'cmake',
  	'source_subfolder' : '_build',
  	'run_post_patch' : [
  		'sed -i.bak \'s/GLIB2_INCLUDE_DIRS/GLIB2_STATIC_INCLUDE_DIRS/\' "../CMakeLists.txt"',
  		'sed -i.bak \'s/GLIB2_LIBRARIES/GLIB2_STATIC_LIBRARIES/\' "../CMakeLists.txt"',
  		'sed -i.bak \'s/Libs: -L${{libdir}} -llensfun.*/Libs: -L${{libdir}} -llensfun -lstdc++/\' "../libs/lensfun/lensfun.pc.cmake"',
  	],
  	'configure_options' : '.. {cmake_prefix_options} -DCMAKE_INSTALL_PREFIX={target_prefix} -DCMAKE_INSTALL_DATAROOTDIR={target_prefix}/share -DBUILD_DOC=0 -DBUILD_STATIC=1 -DBUILD_SHARED_LIBS=0 -DBUILD_TESTS=0 -DBUILD_LENSTOOL=0',
  	'depends_on': [ 'libpng','glib2' ],
  	'_info' : { 'version' : None, 'fancy_name' : 'lensfun (library)' },
  }
subject: add missing dependency