Update _Target._compute_digest

Author: zanieb

Tools/jit/_targets.py

@@ -63,6 +63,7 @@ def _compute_digest(self, out: pathlib.Path) -> str:
         hasher = hashlib.sha256()
         hasher.update(self.triple.encode())
         hasher.update(self.debug.to_bytes())
+        hasher.update(self.cflags.to_bytes())
         # These dependencies are also reflected in _JITSources in regen.targets:
         hasher.update(PYTHON_EXECUTOR_CASES_C_H.read_bytes())
         hasher.update((out / "pyconfig.h").read_bytes())