This change to the appveyor CI config for msvc builds reverses a change introduced in bitcoin#19960. It re-applies a setting to inform vcpkg to only build release vesions of the dependencies rather than the default of debug and release.

sipsorcery · sipsorcery · commit fa18e7cbc5ea · 2020-11-25T11:07:10.000Z
It had been expected that the vcpkg manifest mechanism introduced in bitcoin#19960 would do this automatically but it turns out not to be the case.
diff --git a/.appveyor.yml b/.appveyor.yml
@@ -24,6 +24,7 @@ install:
       git pull origin master > $null
       git -c advice.detachedHead=false checkout $env:VCPKG_COMMIT_ID
       .\bootstrap-vcpkg.bat > $null
+      Add-Content "C:\tools\vcpkg\triplets\$env:PLATFORM-windows-static.cmake" "set(VCPKG_BUILD_TYPE release)"
       cd "$env:APPVEYOR_BUILD_FOLDER"
 before_build:
 # Powershell block below is to download and extract the Qt static libraries. The pseudo code is:
