Qt package: Add Windows Port (#46788)

Also adds support for Paraview and CMake to build with Qt support on
Windows.

The remaining edits are to enable building of Qt itself on Windows:

* Several packages needed to update `.libs` to properly locate
  libraries on Windows
* Qt needed a patch to allow it to build using a Python with a space
  in the path
* Some Qt dependencies had not been ported to Windows yet
  (e.g. `harfbuzz` and `lcms`)

This PR does not provide a sufficient GL for Qt to use Qt Quick2, as
such Qt Quick2 is disabled on the Windows platform by this PR.

---------

Co-authored-by: Dan Lipsa <dan.lipsa@kitware.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/spack/spack/compilers/msvc.py b/lib/spack/spack/compilers/msvc.py
index 0954d0b7d3..c3e9e13d71 100644
--- a/lib/spack/spack/compilers/msvc.py
+++ b/lib/spack/spack/compilers/msvc.py
@@ -293,6 +293,17 @@ class Msvc(Compiler):
         vs22_toolset = Version(toolset_ver) > Version("142")
         return toolset_ver if not vs22_toolset else "143"
 
+    @property
+    def visual_studio_version(self):
+        """The four digit Visual Studio version (i.e. 2019 or 2022)
+
+        Note: This differs from the msvc version or toolset version as
+        those properties track the compiler and build tools version
+        respectively, whereas this tracks the VS release associated
+        with a given MSVC compiler.
+        """
+        return re.search(r"[0-9]{4}", self.cc).group(0)
+
     def _compiler_version(self, compiler):
         """Returns version object for given compiler"""
         # ignore_errors below is true here due to ifx's