THRIFT-4547: Swift crosstests (#2670)

Co-authored-by: Jiayu Liu <Jimexist@users.noreply.github.com>
diff --git a/test/swift/CrossTests/Makefile.am b/test/swift/CrossTests/Makefile.am
new file mode 100644
index 0000000..b7d8fbb
--- /dev/null
+++ b/test/swift/CrossTests/Makefile.am
@@ -0,0 +1,34 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+TESTTHRIFT=../../ThriftTest.thrift
+
+stubs: $(THRIFT) $(TESTTHRIFT)
+	$(THRIFT) -o Sources/Common --gen swift $(TESTTHRIFT)
+
+precross: stubs
+	swift build
+
+check: stubs
+
+clean-local:
+	$(RM) -r Sources/Common/gen-swift/
+
+dist-hook:
+	$(RM) -r $(distdir)/gen-swift/