Fix wheel dependency discovery in Python builds

Author: bdice

python/cuvs/CMakeLists.txt

@@ -1,6 +1,6 @@
 # =============================================================================
 # cmake-format: off
-# SPDX-FileCopyrightText: Copyright (c) 2022-2026, NVIDIA CORPORATION.
+# SPDX-FileCopyrightText: Copyright (c) 2022-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 # cmake-format: on
 # =============================================================================
@@ -24,6 +24,9 @@ project(
             C CXX CUDA
 )
 
+# Find C++ libraries from RAPIDS wheels in site-packages.
+set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS TRUE)
+
 # ##################################################################################################
 # * Process User Options  ------------------------------------------------------
 

python/libcuvs/CMakeLists.txt

@@ -1,6 +1,6 @@
 # =============================================================================
 # cmake-format: off
-# SPDX-FileCopyrightText: Copyright (c) 2025-2026, NVIDIA CORPORATION.
+# SPDX-FileCopyrightText: Copyright (c) 2025-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 # cmake-format: on
 # =============================================================================
@@ -18,6 +18,9 @@ project(
   LANGUAGES CXX CUDA
 )
 
+# Find C++ libraries from RAPIDS wheels in site-packages.
+set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS TRUE)
+
 option(USE_NCCL_RUNTIME_WHEEL "Use the NCCL wheel at runtime instead of the system library" OFF)
 
 # Check if cuVS is already available. If so, it is the user's responsibility to ensure that the