And done.

Switched to a slight less shallow clone too, for better versioning

CI/before_script.msvc.sh

@@ -225,7 +225,7 @@ eval 7z x -y $DEPS/Bullet-2.83.4-win$BITS.7z $STRIP
 mv Bullet-2.83.4-win$BITS Bullet
 
 BULLET_SDK="`real_pwd`/Bullet"
-add_cmake_opts -DBULLET_INCLUDE_DIR="$BULLET_SDK/include" \
+add_cmake_opts -DBULLET_INCLUDE_DIR="$BULLET_SDK/include/bullet" \
 	-DBULLET_COLLISION_LIBRARY="$BULLET_SDK/lib/BulletCollision.lib" \
 	-DBULLET_COLLISION_LIBRARY_DEBUG="$BULLET_SDK/lib/BulletCollision_Debug.lib" \
 	-DBULLET_DYNAMICS_LIBRARY="$BULLET_SDK/lib/BulletDynamics.lib" \

appveyor.yml

@@ -13,7 +13,7 @@ matrix:
 
 os: unstable
 
-shallow_clone: true
+clone_depth: 5
 
 cache:
     - C:\projects\openmw\deps\Bullet-2.83.4-win32.7z -> CI/before_script.msvc.sh