commit a33e6935bc061a897a62a5b4ef053693aaf754bd
author Gilles Peskine <Gilles.Peskine@arm.com> Thu Sep 23 17:46:12 2021 +0200
committer Gilles Peskine <Gilles.Peskine@arm.com> Mon Sep 27 19:15:56 2021 +0200
tree 9d8d9c5651fa947d81a85e7225d25e58ef05c023
parent 913fc5fff3831057f03b1de529c76ecd65e34b26

Use reserved identifier for warn_unused_result

This is normally equivalent, but works even if some other header defines a
macro called warn_unused_result.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

include/mbedtls/platform_util.h

diff --git a/include/mbedtls/platform_util.h b/include/mbedtls/platform_util.h
index 3a28dac..d8379de 100644
--- a/include/mbedtls/platform_util.h
+++ b/include/mbedtls/platform_util.h
@@ -69,7 +69,7 @@
  */
 #if !defined(MBEDTLS_CHECK_RETURN)
 #if defined(__GNUC__)
-#define MBEDTLS_CHECK_RETURN __attribute__((warn_unused_result))
+#define MBEDTLS_CHECK_RETURN __attribute__((__warn_unused_result__))
 #elif defined(_MSC_VER) && _MSC_VER >= 1700
 #include <sal.h>
 #define MBEDTLS_CHECK_RETURN _Check_return_