diff --git a/hello/.gitignore b/hello/.gitignore
new file mode 100644
index 0000000..b883f1f
--- /dev/null
+++ b/hello/.gitignore
@@ -0,0 +1 @@
+*.exe
diff --git a/run-tests.sh b/run-tests.sh
new file mode 100755
index 0000000..885095b
--- /dev/null
+++ b/run-tests.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+set -ex
+
+if [ $# -lt 1 ]; then
+    echo $0 dest
+    exit 1
+fi
+PREFIX="$1"
+export PATH=$PREFIX/bin:$PATH
+
+: ${ARCHS:=${TOOLCHAIN_ARCHS-i686 x86_64 armv7 aarch64}}
+
+cd hello
+for arch in $ARCHS; do
+    $arch-w64-mingw32-clang hello.c -o hello-$arch.exe
+    $arch-w64-mingw32-clang hello-tls.c -o hello-tls-$arch.exe
+    $arch-w64-mingw32-clang++ hello.cpp -o hello-cpp-$arch.exe -fno-exceptions
+    $arch-w64-mingw32-clang++ hello-exception.cpp -o hello-exception-$arch.exe
+    if [ "$arch" = "i686" ] || [ "$arch" = "x86_64" ]; then
+        wine hello-$arch.exe
+        wine hello-tls-$arch.exe
+        wine hello-cpp-$arch.exe
+        wine hello-exception-$arch.exe
+    fi
+done