** According to the documentation for CMake Version 3.9 & 3.15 & 3. Also as mentioned above, there are configuration files that must be generated that depend on the source files supplied in the CMakeLists.txt file. Some source files may already exist, but CMake has the ability to generate header and source files. Why do the input files have to be written by the generator if they already exist? Generally, yes, but other build systems could be setup like Ninja. If I'm using Linux, what is my native build system by default? Make? With both systems there are additional files needed that CMake knows how to create given a proper CMakeLists.txt file. For Visual Studio you have a solution file (.sln). For a make build system you also have a MakeFile. If I have a set of C++ files in my project, are these the input files? These are generators that create a configuration to work with an alternative IDE tool and must be included with either an IDE or Command-Line generator. Now with downloadable simulator runtimes for watchOS and tvOS, Xcode makes the latest platforms available as you need them. Xcode 14 lets you get started faster than ever with a binary that’s 30 smaller than before. Examples are Visual Studio and Xcode which include a compiler natively. Creating amazing apps has never been easier. These generators are for Integrated Development Environments that include their own compiler. The chosen tool chain must be configured prior to generating the build system with CMake. These generators are for command-line build tools, like Make and Ninja. CMake allows you to specify which if these build systems to generate configuration files for.ĬMake includes a number of Command-Line, IDE, and Extra generators. Sometimes multiple build systems may be installed on a computer, like for Windows you could have a Visual Studio and MinGW build system. The build system uses those files to compile and link source code files.Ī build system is a broad term that groups together a set of tools used to generally compile and link source code, but it can also include auxiliary tools used during a build process.įor example, in a multi-stage build system, one executable might be built to be used in the build process of another build.ĭepending on the tool chain used on a system, CMake will generate multiple files and folders to allow the building of the source files referenced in the CMakeLists.txt and supporting. It used a generator to create configuration files for a build system. CMake doesn't compile or link any source files. To understand what a generator is, we need to first look at what is a build system.
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