--- a/CMakeLists.txt	2025-06-07 15:51:31.329377186 +0300
+++ b/CMakeLists.txt	2025-06-07 15:59:51.874535098 +0300
@@ -1,6 +1,8 @@
 # using 3.18 to have nice lapack imported target
 cmake_minimum_required(VERSION 3.18)

+include(CheckIncludeFile)
+
 #
 # User resources to help writing CMake for fortran projects:
 # - book: CMake CookBook + https://github.com/dev-cafe/cmake-cookbook