[MSVC] Assimp failed in setup with CMake Error

[Apriltanq]

Describe the bug
Assimp failed in setup with CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
DirectX_D3DX9_LIBRARY (ADVANCED)
linked by target "assimp_viewer" in directory F:/gitP/assimp/assimp/tools/assimp_view.

To Reproduce
Steps to reproduce the behavior:

1. Open a VS x64 command
2. git clone https://github.com/assimp/assimp assimp\assimp F:\gitP\assimp\assimp
3. cd F:\gitP\assimp\assimp
4. mkdir build_amd64
5. cd build_amd64
6. cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_SYSTEM_VERSION=10.0.18362.0 -DCMAKE_BUILD_TYPE=Release .. 2>&1

Expected behavior
it should work fine.

Actual behavior
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
DirectX_D3DX9_LIBRARY (ADVANCED)
linked by target "assimp_viewer" in directory F:/gitP/assimp/assimp/tools/assimp_view

-- Generating done
CMake Generate step failed. Build files cannot be regenerated correctly.

Platform (please complete the following information):

• OS: [Windows Server 2019 17763.2686]
• Version [1809]

Error log
configure.log

[kimkulling]

This issue is caused by an invalid test for the assimp-tools. There are enabled as the default. Unfortunately, when using windows the expectation from assimpo is that the directx-SDK9.0 is installed. When this is not the case the cmake-step will fail.

[Apriltanq]

Got it, thanks.