new file mode 100644
--- /dev/null
+++ b/src/misc/ngx_cpp_test_module.cpp
@@ -0,0 +1,27 @@
+
+// stub module to test header files' C++ compatibilty
+
+extern "C" {
+  #include <ngx_config.h>
+  #include <ngx_core.h>
+  #include <ngx_event.h>
+  #include <ngx_event_connect.h>
+  #include <ngx_event_pipe.h>
+
+  #include <ngx_http.h>
+
+  #include <ngx_mail.h>
+  #include <ngx_mail_pop3_module.h>
+  #include <ngx_mail_imap_module.h>
+  #include <ngx_mail_smtp_module.h>
+}
+
+// nginx header files should go before other, because they define 64-bit off_t
+// #include <string>
+
+
+void
+ngx_cpp_test_handler(void *data)
+{
+    return;
+}