cmake_minimum_required(VERSION 2.6 FATAL_ERROR) cmake_policy(VERSION 2.6) project(glm) add_definitions(-D_CRT_SECURE_NO_WARNINGS) add_subdirectory(glm) add_subdirectory(doc) option(GLM_DEVELOPMENT_MODE "GLM development" OFF) if(NOT GLM_DEVELOPMENT_MODE) message(FATAL_ERROR "GLM is a header only library, no need to build it") endif()