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-rw-r--r--testsuites/support/include/buffer_test_io.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/testsuites/support/include/buffer_test_io.h b/testsuites/support/include/buffer_test_io.h
index aee3f53723..27f0184116 100644
--- a/testsuites/support/include/buffer_test_io.h
+++ b/testsuites/support/include/buffer_test_io.h
@@ -17,7 +17,9 @@ extern "C" {
*/
/* #define TESTS_BUFFER_OUTPUT */
-/* #define TESTS_USE_PRINTK */
+#if defined(__AVR__)
+#define TESTS_USE_PRINTK
+#endif
/*
* USE PRINTK TO MINIMIZE SIZE