Add warning about test-only config.h option
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index bd029cb..2ef54c5 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -453,6 +453,9 @@
*
* This setting requires compiling with clang -fsanitize=memory.
*
+ * \warning This macro is only used for extended testing; it is not considered
+ * part of the library's API, so it may change or disappear at any time.
+ *
* Uncomment to enable testing of the constant-flow nature of selected code.
*/
//#define MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN