ci/windows: Build using Clang

Uses the MinGWClangCross toolchain script to build yuzu. Disables our
bundled SDL2 to use the system ones that have been modified to not use
`-mwindows`. Also set's `-e` to stop the script on an error (as opposed
to packaging nothing).

Uses LLVM's linker for linking yuzu. Adds -femulated-tls due to a
libstdc++ incompatibility between GCC and Clang in vulkan_common.

.ci/scripts/windows/docker.sh

@@ -1,19 +1,27 @@
 #!/bin/bash -ex
 
+set -e
+
 cd /yuzu
 
 ccache -s
 
 mkdir build || true && cd build
+LDFLAGS="-fuse-ld=lld"
+# -femulated-tls required due to an incompatibility between GCC and Clang
+# TODO(lat9nq): If this is widespread, we probably need to add this to CMakeLists where appropriate
 cmake .. \
     -DCMAKE_BUILD_TYPE=Release \
-    -DCMAKE_TOOLCHAIN_FILE="$(pwd)/../CMakeModules/MinGWCross.cmake" \
+    -DCMAKE_CXX_FLAGS="-femulated-tls" \
+    -DCMAKE_TOOLCHAIN_FILE="$(pwd)/../CMakeModules/MinGWClangCross.cmake" \
     -DDISPLAY_VERSION=$1 \
     -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON \
     -DENABLE_QT_TRANSLATION=ON \
     -DUSE_CCACHE=ON \
-    -GNinja \
+    -DYUZU_USE_BUNDLED_SDL2=OFF \
-ninja
+    -DYUZU_USE_EXTERNAL_SDL2=OFF \
+    -GNinja
+ninja yuzu yuzu-cmd
 
 ccache -s