From 98cca230ac6d06bb14f8564b93e1324614af25cd Mon Sep 17 00:00:00 2001
From: Momtchil Momtchev <momtchil@momtchev.com>
Date: Tue, 11 Apr 2023 21:58:52 +0200
Subject: restore the unit test

---
 Examples/test-suite/preproc_predefined.h | 11 +++++++++++
 Examples/test-suite/preproc_predefined.i |  2 ++
 2 files changed, 13 insertions(+)

(limited to 'Examples')

diff --git a/Examples/test-suite/preproc_predefined.h b/Examples/test-suite/preproc_predefined.h
index 8d6b6ee28..2eb4cb6f1 100644
--- a/Examples/test-suite/preproc_predefined.h
+++ b/Examples/test-suite/preproc_predefined.h
@@ -25,3 +25,14 @@
 #  error Did not detect exactly one target-language-specific macro defined in the generated wrapper.
 # endif
 #endif
+
+/*
+ * This should not compile in when this bug is present
+ * https://github.com/swig/swig/issues/2525
+ */
+
+#define my_bad_attr __attribute__
+#define my_good_attr(x) __attribute__(x)
+
+int bad my_bad_attr((used));
+int good my_good_attr((used));
diff --git a/Examples/test-suite/preproc_predefined.i b/Examples/test-suite/preproc_predefined.i
index 252ef9a1a..4dc2e6eb8 100644
--- a/Examples/test-suite/preproc_predefined.i
+++ b/Examples/test-suite/preproc_predefined.i
@@ -55,6 +55,8 @@
 #endif
 %}
 
+#define __attribute__(x)
+
 /* Test that SWIGxxx is defined at SWIG-time and in the wrapper. */
 %include "preproc_predefined.h"
 %{
-- 
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