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Diffstat (limited to 'Help/generator')
| -rw-r--r-- | Help/generator/Visual Studio 15 2017.rst | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/Help/generator/Visual Studio 15 2017.rst b/Help/generator/Visual Studio 15 2017.rst index 2ac0449..2cf1aa0 100644 --- a/Help/generator/Visual Studio 15 2017.rst +++ b/Help/generator/Visual Studio 15 2017.rst @@ -19,13 +19,17 @@ Instance Selection ^^^^^^^^^^^^^^^^^^ VS 2017 supports multiple installations on the same machine. -CMake queries the Visual Studio Installer to locate VS instances. -If more than one instance is installed we do not define which one -is chosen by default. If the ``VS150COMNTOOLS`` environment variable -is set and points to the ``Common7/Tools`` directory within one of -the instances, that instance will be used. The environment variable -must remain consistently set whenever CMake is re-run within a given -build tree. +The :variable:`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. Toolset Selection ^^^^^^^^^^^^^^^^^ |