Another attempt

Author: zpostfacto

.github/workflows/build.yml

@@ -48,6 +48,12 @@ jobs:
 
       - uses: lukka/get-cmake@latest
 
+      # Setup MSVC command prompt environment vars.
+      # We must do this before sedtting up our local vcpkg,
+      # Because it will set VCPKG_ROOT to point to some global
+      # install of vcpkg, and we don't want that
+       - uses: ilammy/msvc-dev-cmd@v1
+
       - name: Setup local vcpkg
         run: |
           git clone https://github.com/microsoft/vcpkg.git "${{ env.VCPKG_ROOT }}"
@@ -62,12 +68,6 @@ jobs:
         run: git config --global --add safe.directory '*'
         shell: cmd
 
-      # Setup MSVC command prompt environment vars.
-      # We must do this before sedtting up our local vcpkg,
-      # Because it will set VCPKG_ROOT to point to some global
-      # install of vcpkg, and we don't want that
-      - uses: ilammy/msvc-dev-cmd@v1
-
       - name: vcpkg check / install dependencies
         working-directory: '${{ github.workspace }}'
         run: '"${{env.VCPKG_ROOT}}\vcpkg" install --triplet=x64-windows'