fix oneDNN packaging issue in cppsdk (#3548)

Author: jingxu10

csrc/gpu/CMakeLists.txt

@@ -257,12 +257,12 @@ endif()
 
 set(LIBRARIES_INSTALL)
 
-install(TARGETS ${ONEDNN_LIBRARY}
-  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
-list(APPEND LIBRARIES_INSTALL ${ONEDNN_LIBRARY})
-
 if(BUILD_SEPARATE_OPS)
+  # oneDNN is linked statically if not BUILD_SEPARATE_OPS, otherwise is linked dynamically
+  install(TARGETS ${ONEDNN_LIBRARY}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+  list(APPEND LIBRARIES_INSTALL ${ONEDNN_LIBRARY})
   foreach(op_lib ${IPEX_GPU_OP_LIBRARIES})
     install(TARGETS ${op_lib}
       LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}