create_build_environment_variables-allow-empty-pathhash.patch

--- scripts/create_build_environment_variables.py	2023-05-12 00:02:22.000000000 +0100
+++ scripts/create_build_environment_variables.py_v2	2023-06-09 09:11:01.358209808 +0100
@@ -71,11 +71,6 @@
         for op, path in (e.split(":", 1),)
         if op == "pathhash"
     ]
-    if checksums and all(v == "--" for k, v in checksums):
-        raise RuntimeError(
-            "All provided 'pathhash' items result in emtpy hashes."
-            " This is considerd to be an error."
-        )
 
     evals = [
         (f"eval:{name}", cmd_out(expr).strip())