Visual Studio 15 2017

Generates Visual Studio 15 (VS 2017) project files.

Project Types

Only Visual C++ and C# projects may be generated. Other types of projects (JavaScript, Powershell, Python, etc.) are not supported.

Instance Selection

VS 2017 supports multiple installations on the same machine. The CMAKE_GENERATOR_INSTANCE variable may be set as a cache entry containing the absolute path to a Visual Studio instance. If the value is not specified explicitly by the user or a toolchain file, CMake queries the Visual Studio Installer to locate VS instances, chooses one, and sets the variable as a cache entry to hold the value persistently.

When CMake first chooses an instance, if the VS150COMNTOOLS environment variable is set and points to the Common7/Tools directory within one of the instances, that instance will be used. Otherwise, if more than one instance is installed we do not define which one is chosen by default.

Platform Selection

The CMAKE_GENERATOR_PLATFORM variable may be set, perhaps via the cmake(1) -A option, to specify a target platform name (architecture). For example:

  • cmake -G "Visual Studio 15 2017" -A Win32

  • cmake -G "Visual Studio 15 2017" -A x64

  • cmake -G "Visual Studio 15 2017" -A ARM

  • cmake -G "Visual Studio 15 2017" -A ARM64

For compatibility with CMake versions prior to 3.1, one may specify a target platform name optionally at the end of the generator name. This is supported only for:

Visual Studio 15 2017 Win64

Specify target platform x64.

Visual Studio 15 2017 ARM

Specify target platform ARM.

Toolset Selection

The v141 toolset that comes with Visual Studio 15 2017 is selected by default. The CMAKE_GENERATOR_TOOLSET option may be set, perhaps via the cmake(1) -T option, to specify another toolset.

For each toolset that comes with this version of Visual Studio, there are variants that are themselves compiled for 32-bit (x86) and 64-bit (x64) hosts (independent of the architecture they target). By default Visual Studio chooses the 32-bit variant even on a 64-bit host. One may request use of the 64-bit host tools by adding a host=x64 option to the toolset specification. See the CMAKE_GENERATOR_TOOLSET variable for details.