Ensure libcudf searches for our patched version of CCCL first

cpp/cmake/thirdparty/get_cccl.cmake

@@ -26,16 +26,16 @@ function(find_and_configure_cccl)
   set(CMAKE_INSTALL_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}/libcudf")
   set(CMAKE_INSTALL_LIBDIR "${CMAKE_INSTALL_INCLUDEDIR}/lib")
 
-  # Find or install CCCL with our custom set of patches
-  rapids_cpm_cccl(BUILD_EXPORT_SET cudf-exports INSTALL_EXPORT_SET cudf-exports)
-
   # Store where CMake can find our custom CCCL install
   include("${rapids-cmake-dir}/export/find_package_root.cmake")
   rapids_export_find_package_root(
     INSTALL CCCL [=[${CMAKE_CURRENT_LIST_DIR}/../../../include/libcudf/lib/rapids/cmake/cccl]=]
-    EXPORT_SET cudf-exports
-    CONDITION CCCL_SOURCE_DIR
+    EXPORT_SET cudf-exports CONDITION CCCL_SOURCE_DIR
   )
+
+  # Find or install CCCL with our custom set of patches
+  rapids_cpm_cccl(BUILD_EXPORT_SET cudf-exports INSTALL_EXPORT_SET cudf-exports)
+
 endfunction()
 
 find_and_configure_cccl()