def __init__(self):
    self.gen = None
    self.declared_versions = {}
    self.possible_versions = {}
    self.deprecated_versions = {}
    self.possible_virtuals = None
    self.possible_compilers = []
    self.variant_values_from_specs = set()
    self.version_constraints = set()
    self.target_constraints = set()
    self.compiler_version_constraints = set()
    self.post_facts = []
    self._condition_id_counter = itertools.count()
    self.target_specs_cache = None
def __init__(self):
    self.gen = None
    self.declared_versions = {}
    self.possible_versions = {}
    self.deprecated_versions = {}
    self.possible_virtuals = None
    self.possible_compilers = []
    self.variant_values_from_specs = set()
    self.version_constraints = set()
    self.target_constraints = set()
    self.compiler_version_constraints = set()
    self.post_facts = []
    self._condition_id_counter = itertools.count()
    self.target_specs_cache = None