+ if vars(conf.options)['c++17']:
+ cpp_std = '17'
+ conf.env.XMLPP_API = '4.0'
+ conf.env.PANGOMM_API = '2.48'
+ conf.env.CAIROMM_API = '1.16'
+ else:
+ cpp_std = '11'
+ conf.env.XMLPP_API = '2.6'
+ conf.env.PANGOMM_API = '1.4'
+ conf.env.CAIROMM_API = '1.0'
+