Fix ASAN build

Signed-off-by: Joaquin Anton <[email protected]>

plugins/video/pkg_src/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# Copyright (c) 2023-2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -70,12 +70,20 @@ find_library(cuda_LIBRARY cuda
              PATHS ${CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES}
              PATH_SUFFIXES lib/stubs lib64/stubs)
 
+# Check if B is non-empty and set the result variable accordingly
+if(NOT $ENV{LD_PRELOAD} STREQUAL "")
+    set(NEW_LD_PRELOAD "$ENV{LD_PRELOAD} ${cuda_LIBRARY}")
+else()
+    set(NEW_LD_PRELOAD "${cuda_LIBRARY}")
+endif()
+string(REPLACE " " ":" NEW_LD_PRELOAD "${NEW_LD_PRELOAD}")
+
 # Generates .pyi stubs
 # Note: Needs to preload libcuda.so stub so that the shared-object library can be loaded
 add_custom_target(dali_${PLUGIN_NAME}_generate_stubs ALL
   DEPENDS dali_${PLUGIN_NAME}
   BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/fn/plugin/video/
-  COMMAND LD_PRELOAD=${cuda_LIBRARY} ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/generate_plugin_stubs.py
+  COMMAND LD_PRELOAD=${NEW_LD_PRELOAD} ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/generate_plugin_stubs.py
       ${CMAKE_CURRENT_BINARY_DIR}
       ${PROJECT_BINARY_DIR}/libdali_${PLUGIN_NAME}.so
       )