Use toplevel key when sp-specific one does not exist.
diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py
index 49b84b9..bfa160b 100644
--- a/mesonbuild/coredata.py
+++ b/mesonbuild/coredata.py
@@ -582,6 +582,9 @@
except KeyError:
pass
+ if key.subproject:
+ # Per-subproject option was not found, try the top level one.
+ return self.get_option(key.toplevel_key())
raise MesonException(f'Tried to get unknown builtin option {str(key)}')
def set_option(self, key: OptionKey, value) -> None:
diff --git a/mesonbuild/mesonlib/universal.py b/mesonbuild/mesonlib/universal.py
index 318b365..fbb3a00 100644
--- a/mesonbuild/mesonlib/universal.py
+++ b/mesonbuild/mesonlib/universal.py
@@ -1976,6 +1976,11 @@
_type = _classify_argument(self)
object.__setattr__(self, 'type', _type)
+ def toplevel_key(self):
+ if not self.subproject:
+ raise RuntimeError("Internal error: tried to get top level option for a top level option.")
+ return OptionKey(self.name, '', self.machine, self.lang, self.type)
+
def __setattr__(self, key: str, value: T.Any) -> None:
raise AttributeError('OptionKey instances do not support mutation.')
