for name in bld.env.keys():
    if name.startswith('FLAVOR_') and bld.env[name]:
        target = bld.env[name]
        bld(
            features = 'subst',
            source = 'glmark2.1.in',
            target = bld.path.find_or_declare('%s.1' % target),
            APPNAME = 'GLMARK2',
            appname = target,
            appversion = bld.env.GLMARK2_VERSION,
            install_path = '${MANDIR}/man1'
        )