Update

[ghstack-poisoned]

Author: swolchok

build/cmake_deps.toml

@@ -58,6 +58,21 @@ deps = [
   "executorch_core",
 ]
 
+# HACK: prevent reduce_util from also showing up in custom_ops. The
+# actual medium-term fix is to stop using Buck to drive our CMake
+# builds.
+[targets.reduce_util]
+buck_targets = [
+  "//kernels/portable/cpu/util:reduce_util",
+]
+filters = [
+  ".cpp$",
+]
+deps = [
+  "executorch",
+  "executorch_core",
+]
+
 [targets.optimized_kernels]
 buck_targets = [
   "//kernels/optimized:generated_lib",
@@ -414,6 +429,7 @@ deps = [
   "optimized_kernels",
   "extension_parallel",
   "extension_threadpool",
+  "reduce_util",
   "xnnpack_backend",
 ]
 
@@ -449,6 +465,7 @@ deps = [
   "executorch_core",
   "extension_data_loader",
   "extension_module",
+  "extension_parallel",
   "portable_kernels",
   "quantized_kernels",
   "xnnpack_backend",