The GNU make system is a great tool when you build exclusively for Linux systems. However, some packages are multiplatform and need a way to manage
Makefile files on different operating systems. CMake is a cross-platform build system that can work not only with GNU make, but also Microsoft Visual Studio and Apple's Xcode.
The CMake tool parses
CMakeLists.txt files in every directory to control the build process. An example
CMakeLists.txt file, to compile the
helloworld example, follows:
cmake_minimum_required(VERSION 2.8.10) project(helloworld) add_executable(helloworld helloworld.c) install(TARGETS helloworld RUNTIME DESTINATION bin)
The Yocto build system also contains classes with the required knowledge to build CMake packages. All your recipe needs to do is inherit the
cmake class and configure the arguments to be passed to the
configure script in the
EXTRA_OECMAKE variable. Usually, the CMake system understands how to...