#Cmake versions code#
Set policy CMP0025 to NEW with the following code at the top of your CMakeLists.txt file before the project command: # Fix behavior of CMAKE_CXX_STANDARD when targeting macOS. Did this tutorial help a little How about. Use cmake_minimum_required to require CMake 3.0 or later, or The output should look something like below (depending upon cmake version you are installing). Make sure that you do one of the following things: If you are using CMake and clang to target macOS there is a bug that can cause the CMAKE_CXX_STANDARD feature to simply not work (not add any compiler flags). The cmake Open Source Project on Open Hub: Languages Page (English). CMake issue #15943 for clang users targeting macOS Cmake with Clang screenshot.png 838 × 761 116 KB. Then you could write use_cxx11() at the top of any CMakeLists.txt file that defines a target that uses C++11. The macro only supports GCC right now, but it should be straight-forward to expand it to other compilers. Visual studio projects, make scripts, Xcode projects. CMake interprets a CMakeLists.txt script the user authors and generates a build plan in a build environment of choice (e.g.
![cmake versions cmake versions](https://pcl.readthedocs.io/en/latest/_images/pcl_visualizer.gif)
If (CMAKE_CXX_COMPILER_ID STREQUAL "GNU") CMake is a cross-platform open-source tool for defining build processes that run across multiple platforms by abstracting away native build environments and compilers.
![cmake versions cmake versions](https://user-images.githubusercontent.com/20282795/75767012-06869580-5d7d-11ea-9e89-8b8f173eed96.png)
If you need to support older versions of CMake, here is a macro I came up with that you can use: macro(use_cxx11)
![cmake versions cmake versions](https://developer.nvidia.com/blog/parallelforall/wp-content/uploads/2017/08/image2.png)
If you know that you will always have CMake 3.1 or later available, you can just write this in your top-level CMakeLists.txt file, or put it right before any new target is defined: set (CMAKE_CXX_STANDARD 11) CMake 3.1 introduced the CMAKE_CXX_STANDARD variable that you can use.