Fix

recipe/meta.yaml

@@ -13,7 +13,13 @@ build:
   script:
     # PyPy has weird sysconfigdata name
     - rm -f $PREFIX/lib/pypy$PY_VER/_sysconfigdata.py  # [build_platform != target_platform and target_platform == "linux-ppc64le"]
-    - {{ PYTHON }} -m pip install . -vv
+    # hmaarrfk -- 2023/12
+    # I read in an other feedstock that for some reason the global settings
+    # in conda-forge weren't really taking effect.
+    # I feel like the build isolation from pypa is messing with
+    # the build process leading to errors such as:
+    # https://github.com/conda-forge/pydantic-core-feedstock/issues/79
+    - {{ PYTHON }} -m pip install . -vv --no-build-isolation
   number: 1
 
 requirements: