From: Björn Jacke <bj@sernet.de>
Date: Sun, 24 May 2020 11:56:22 +0000 (+0200)
Subject: talloc: also use portable __has_attribute macro to check for attribute support
X-Git-Tag: ldb-2.2.0~350
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f75b35e1b86a6eb094c7193e3dae76778197696;p=thirdparty%2Fsamba.git

talloc: also use portable __has_attribute macro to check for attribute support

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---

diff --git a/lib/talloc/talloc.h b/lib/talloc/talloc.h
index b991dd3c4f5..0154bf3bbf6 100644
--- a/lib/talloc/talloc.h
+++ b/lib/talloc/talloc.h
@@ -89,8 +89,13 @@ typedef void TALLOC_CTX;
 #define TALLOC_DEPRECATED 0
 #endif
 
+/* for old gcc releases that don't have the feature test macro __has_attribute */
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
 #ifndef PRINTF_ATTRIBUTE
-#if (__GNUC__ >= 3)
+#if __has_attribute(format) || (__GNUC__ >= 3)
 /** Use gcc attribute to check printf fns.  a1 is the 1-based index of
  * the parameter containing the format, and a2 the index of the first
  * argument. Note that some gcc 2.x versions don't handle this