Merge branch 'cmake-4.0-compat' into 'master'

CMake 4.0 compatibility: raise minimum cmake versions to 3.5.

See merge request !268

cmake/FindOpenMesh.cmake

@@ -46,7 +46,7 @@
 #                                                                           
 #===========================================================================
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 
 #if already found via finder or simulated finder in openmesh CMakeLists.txt, skip the search
 IF (NOT OPENMESH_FOUND) 

libs_required/glew-cmake/CMakeLists.txt

-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 
 file(STRINGS ${CMAKE_CURRENT_SOURCE_DIR}/config/version  _VERSION_MAJOR_STRING REGEX "GLEW_MAJOR[ ]*=[ ]*[0-9]+.*")
 string(REGEX REPLACE "GLEW_MAJOR[ ]*=[ ]*([0-9]+)" "\\1" MAJOR_VERSION ${_VERSION_MAJOR_STRING})