Set cmake min version to represent used features.

ThisIsFineTM · ThisIsFineTM · commit ff22058817e5 · 2025-05-14T13:12:27.000-04:00
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -7,7 +7,7 @@
 # The full license is in the file LICENSE, distributed with this software. #
 ############################################################################
 
-cmake_minimum_required(VERSION 3.29)
+cmake_minimum_required(VERSION 3.15..3.29)
 project(xtensor CXX)
 
 set(XTENSOR_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
@@ -7,7 +7,7 @@
 # The full license is in the file LICENSE, distributed with this software. #
 ############################################################################
 
-cmake_minimum_required(VERSION 3.29)
+cmake_minimum_required(VERSION 3.15..3.29)
 
 if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
     project(xtensor-test CXX)
