diff --git a/cmake/adjust_global_compile_flags.cmake b/cmake/adjust_global_compile_flags.cmake
index 2aa83e9e3ee96..f9839ba7ed483 100644
--- a/cmake/adjust_global_compile_flags.cmake
+++ b/cmake/adjust_global_compile_flags.cmake
@@ -99,10 +99,21 @@ if (onnxruntime_ENABLE_LTO)
     include(CheckIPOSupported)
     check_ipo_supported(RESULT ipo_enabled OUTPUT ipo_output)
     if (NOT ipo_enabled)
-      message(WARNING "IPO is not supported by this compiler")
+      message(WARNING "Interprocedural optimization (IPO) is not supported by this compiler. ${ipo_output}")
       set(onnxruntime_ENABLE_LTO OFF)
     else()
       set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ON)
+
+      # See https://cmake.org/cmake/help/latest/policy/CMP0069.html.
+      #
+      # "The OLD behavior for this policy is to add IPO flags only for Intel compiler on Linux.
+      # The NEW behavior for this policy is to add IPO flags for the current compiler or produce an error if CMake does
+      # not know the flags."
+      #
+      # CMake versions 3.8 and lower use the OLD behavior. This project requires CMake version > 3.8.
+      # However, some dependencies may specify a lower required CMake version and default to the OLD behavior.
+      # Ensure that CMake also uses the NEW behavior for such dependencies.
+      set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
     endif()
 endif()
 
@@ -342,4 +353,4 @@ endif()
 
 if (onnxruntime_USE_EXTENSIONS)
     include_directories(${REPO_ROOT}/include/onnxruntime/core/session)
-endif()
\ No newline at end of file
+endif()