diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 041252fe13..5f3cbadd56 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -92,6 +92,8 @@ else()
   )
   get_filename_component(_cufile_root "${_cufile_location}" DIRECTORY)
   get_filename_component(_cufile_root "${_cufile_root}" DIRECTORY)
+  message(WARNING "PREFIX: $ENV{PREFIX}")
+  message(WARNING "BUILD_PREFIX: $ENV{BUILD_PREFIX}")
   file(READ "${_cufile_root}/include/cufile.h" CUFILE_H_STR)
   string(FIND "${CUFILE_H_STR}" "cuFileBatchIOSetUp" cuFileBatchIOSetUp_location)
   if(cuFileBatchIOSetUp_location EQUAL "-1")