updated the CMake dependencies

Author: mrodrig6

toolchain/dependencies/CMakeLists.txt

@@ -37,7 +37,8 @@ if (MFC_FFTW)
                 CMAKE_ARGS -DBUILD_TESTS=OFF
                            -DBUILD_SHARED_LIBS=OFF
                            "-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}"
-                PATCH_COMMAND sed -i 's/cmake_minimum_required(VERSION 2.8.3)/cmake_minimum_required(VERSION 3.5...4.0)\\ncmake_policy(VERSION 3.5)/' CMakeLists.txt
+                PATCH_COMMAND ${CMAKE_COMMAND} -E echo "Patching FFTW for CMake 4.0 compatibility" &&
+                sed -i 's/cmake_minimum_required(VERSION 2.8.3)/cmake_minimum_required(VERSION 3.5...4.0)\\ncmake_policy(VERSION 3.5)/' CMakeLists.txt
             )
         else()
             message(WARNING "The Fortran compiler vendor is Cray so FFTW3 will not be built. We will use cray-fftw instead.")