Index: oiio-Release-2.1.15.0/CMakeLists.txt
===================================================================
--- oiio-Release-2.1.15.0.orig/CMakeLists.txt
+++ oiio-Release-2.1.15.0/CMakeLists.txt
@@ -2,10 +2,17 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # https://github.com/OpenImageIO/oiio/blob/master/LICENSE.md
 
+if(CMAKE_COMPAT)
+	cmake_policy(SET CMP0048 NEW)
+	cmake_policy(SET CMP0057 NEW)
+	project (OpenImageIO VERSION 2.1.15.0
+         LANGUAGES CXX C)
+else()
 cmake_minimum_required (VERSION 3.12)
 project (OpenImageIO VERSION 2.1.15.0
          HOMEPAGE_URL "https://openimageio.org"
          LANGUAGES CXX C)
+endif()
 set (PROJ_NAME OIIO)    # short name, caps
 string (TOLOWER ${PROJ_NAME} PROJ_NAME_LOWER)  # short name lower case
 string (TOUPPER ${PROJ_NAME} PROJ_NAME_UPPER)  # short name upper case