VS: Teach VS 2019 generator to select host tools matching host arch

This generator is new so we can introduce the long-desired behavior
of selecting ``host=x64`` tools by default on x64 hosts.

2 files changed, 4 insertions, 2 deletions

diff --git a/Help/generator/Visual Studio 16 2019.rst b/Help/generator/Visual Studio 16 2019.rst
index 9d3da8b..b456554 100644
--- a/Help/generator/Visual Studio 16 2019.rst
+++ b/Help/generator/Visual Studio 16 2019.rst
@@ -47,6 +47,7 @@ default.  The :variable:`CMAKE_GENERATOR_TOOLSET` option may be set, perhaps
 via the :manual:`cmake(1)` ``-T`` option, to specify another toolset.
 
 .. |VS_TOOLSET_HOST_ARCH_DEFAULT| replace::
-   By default this generator uses the 32-bit variant even on a 64-bit host.
+   By default this generator uses the 64-bit variant on x64 hosts and
+   the 32-bit variant otherwise.
 
 .. include:: VS_TOOLSET_HOST_ARCH.txt
diff --git a/Help/release/dev/vs2019.rst b/Help/release/dev/vs2019.rst
index 2072147..ee9a2f2 100644
--- a/Help/release/dev/vs2019.rst
+++ b/Help/release/dev/vs2019.rst
@@ -10,4 +10,5 @@ vs2019
   in the generator name.  Instead :variable:`CMAKE_GENERATOR_PLATFORM`
   must be used, e.g. through the ``-A`` command-line option.  Furthermore,
   the default target platform (architecture) is now based on the *host*
-  platform.
+  platform.  The VS host toolset selection is now based on the host
+  architecture as well.