From 7593bdf4e88b6a5da60e6fa9d4ba05a378d5d7d4 Mon Sep 17 00:00:00 2001
From: Nils Gladitz <nilsgladitz@gmail.com>
Date: Tue, 12 Mar 2019 08:58:45 +0100
Subject: CMake: Fix WiX installer downgrades with versioned binaries

Since commit 5b9da05b7a (Windows: Embed version information into CMake
binaries, 2017-10-25, v3.11.0-rc1~411^2) our binaries have version
information that prevents a `.msi` downgrade from replacing them by
default.  Configure the re-install mode:

* a: reinstall all files regardless of version
* m: rewrite all per-machine registry entries
* u: rewrite all per-user registry entries
* s: reinstall shortcuts and icons

Fixes: #19006
---
 Utilities/Release/WiX/WIX.template.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Utilities/Release/WiX/WIX.template.in b/Utilities/Release/WiX/WIX.template.in
index fe176ca..8abf9d8 100644
--- a/Utilities/Release/WiX/WIX.template.in
+++ b/Utilities/Release/WiX/WIX.template.in
@@ -20,6 +20,8 @@
             Schedule="afterInstallInitialize"
             AllowDowngrades="yes"/>
 
+        <Property Id="REINSTALLMODE" Value="amus"/>
+
         <WixVariable Id="WixUILicenseRtf" Value="$(var.CPACK_WIX_LICENSE_RTF)"/>
         <Property Id="WIXUI_INSTALLDIR" Value="INSTALL_ROOT"/>
 
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