| # Filesystem is supported on Apple platforms starting with macosx10.15. | 
 | # Automatically disable the <filesystem> tests when we're running the test | 
 | # suite against an older macOS. | 
 | too_old = {'10.9', '10.10', '10.11', '10.12', '10.13', '10.14'} | 
 | if 'use_system_cxx_lib' in config.available_features: | 
 |   if any('target=x86_64-apple-macosx{}'.format(v) in config.available_features for v in too_old): | 
 |     config.unsupported = True | 
 |  | 
 | if 'libcpp-has-no-filesystem-library' in config.available_features: | 
 |     config.unsupported = True |