[PTI-LIB] Fix Build with FetchContent (#458)

Fix build within the context of `FetchContent`. Use `PROJECT_SOURCE_DIR`
instead of `CMAKE_SOURCE_DIR` to enable subproject builds with
`FetchContent`.

Signed-off-by: Schilling, Matthew <[email protected]>

Author: mschilling0

sdk/cmake/Modules/macros.cmake

@@ -55,7 +55,9 @@ macro(FindHeadersPath TARGET L0_GEN_SCRIPT GEN_FILE_NAME custom_target L0_TARGET
   add_custom_target(${custom_target} ALL
                     DEPENDS ${L0_GEN_INC_PATH}/${GEN_FILE_NAME})
   add_custom_command(OUTPUT ${L0_GEN_INC_PATH}/${GEN_FILE_NAME}
-                     COMMAND "${PYTHON_EXECUTABLE}" ${L0_GEN_SCRIPT} ${L0_GEN_INC_PATH} "${L0_INC_PATH}/level_zero" "${PROJECT_BINARY_DIR}/include/pti" "${CMAKE_SOURCE_DIR}/include/pti" ${UR_HEADER_PATH} ${PTI_API_ID_REGENERATE} ${PTI_L0_LOADER_COMMIT_HASH})
+                     COMMAND "${PYTHON_EXECUTABLE}" ${L0_GEN_SCRIPT}
+                     ${L0_GEN_INC_PATH} "${L0_INC_PATH}/level_zero"
+                     "${PROJECT_BINARY_DIR}/include/pti" "${PROJECT_SOURCE_DIR}/include/pti" ${UR_HEADER_PATH} ${PTI_API_ID_REGENERATE} ${PTI_L0_LOADER_COMMIT_HASH})
   target_include_directories(${TARGET}
     PUBLIC "$<BUILD_INTERFACE:${L0_GEN_INC_PATH}>")
   add_dependencies(${TARGET}
@@ -384,7 +386,9 @@ macro(AddApiGenTarget L0_GEN_SCRIPT GEN_FILE_NAME L0_TARGET)
   string(CONCAT L0_LOADER_INFO "commit: " ${PTI_L0_LOADER_COMMIT_HASH} " - v" ${PTI_L0_LOADER})
   add_custom_target(generate-ids
                     DEPENDS ${L0_GEN_INC_PATH}/${GEN_FILE_NAME}
-                    COMMAND "${PYTHON_EXECUTABLE}" ${L0_GEN_SCRIPT} ${L0_GEN_INC_PATH} "${L0_INC_PATH}/level_zero" "${PROJECT_BINARY_DIR}/include/pti" "${CMAKE_SOURCE_DIR}/include/pti" ${UR_HEADER_PATH} "ON" ${L0_LOADER_INFO})
+                    COMMAND "${PYTHON_EXECUTABLE}" ${L0_GEN_SCRIPT}
+                    ${L0_GEN_INC_PATH} "${L0_INC_PATH}/level_zero"
+                    "${PROJECT_BINARY_DIR}/include/pti" "${PROJECT_SOURCE_DIR}/include/pti" ${UR_HEADER_PATH} "ON" ${L0_LOADER_INFO})
 endmacro()
 
 macro(AddFormatTarget)