Add disclaimer to README to favor C11/C++14 atomics over libatomic_ops use

(Apply commit fe16265 from 'release-7_4' branch.)

* README: Add top-level disclaimer that it is better to use
C11 or C++14 atomic primitives instead of this library for the
newly-developed code.

diff --git a/README b/README
index 276191c412935a7be32fea110e8e56abc4c245c2..9a8d42ace3a96b1d39f7046307ef2db7d0f63427 100644 (file)
--- a/README
+++ b/README
@@ -1,6 +1,8 @@
 Synopsis
 ========
 
+IN NEW CODE, PLEASE USE C11 OR C++14 STANDARD ATOMICS INSTEAD OF THIS PACKAGE.
+
 This package provides semi-portable access to hardware provided
 atomic memory operations.  These might allow you to write code: