diff --git a/Tests/OutOfSource/OutOfSourceSubdir/testlib.cxx b/Tests/OutOfSource/OutOfSourceSubdir/testlib.cxx
new file mode 100644
index 000000000..1f78bd3e0
--- /dev/null
+++ b/Tests/OutOfSource/OutOfSourceSubdir/testlib.cxx
@@ -0,0 +1,6 @@
+#include "testlib.h"
+
+float TestLib()
+{
+  return 1.0;
+}
diff --git a/Tests/OutOfSource/OutOfSourceSubdir/testlib.h b/Tests/OutOfSource/OutOfSourceSubdir/testlib.h
new file mode 100644
index 000000000..289b67361
--- /dev/null
+++ b/Tests/OutOfSource/OutOfSourceSubdir/testlib.h
@@ -0,0 +1,11 @@
+#ifdef _WIN32
+#  ifdef testlib_EXPORTS
+#    define CM_TEST_LIB_EXPORT  __declspec( dllexport )
+#  else
+#    define CM_TEST_LIB_EXPORT  __declspec( dllimport )
+#  endif
+#else
+#  define CM_TEST_LIB_EXPORT 
+#endif
+
+CM_TEST_LIB_EXPORT float TestLib();