[Bf-blender-cvs] [df153fc331d] temp-sybren-usd-patch-02: USD: clarified comment about defining _GLIBCXX_PERMIT_BACKWARD_HASH

[Sybren A. Stüvel]

Commit: df153fc331da165c0fa8eb480ea209489a722609
Author: Sybren A. Stüvel
Date:   Wed Dec 11 15:33:50 2019 +0100
Branches: temp-sybren-usd-patch-02
https://developer.blender.org/rBdf153fc331da165c0fa8eb480ea209489a722609

USD: clarified comment about defining _GLIBCXX_PERMIT_BACKWARD_HASH

===================================================================

M	source/blender/usd/CMakeLists.txt

===================================================================

diff --git a/source/blender/usd/CMakeLists.txt b/source/blender/usd/CMakeLists.txt
index fd77cf1db88..f7b6c6ee11e 100644
--- a/source/blender/usd/CMakeLists.txt
+++ b/source/blender/usd/CMakeLists.txt
@@ -18,10 +18,10 @@
 # All rights reserved.
 # ***** END GPL LICENSE BLOCK *****
 
-# This suppresses the warning "This file includes at least one deprecated or antiquated header which
-# may be removed without further notice at a future date", which is caused by the USD library
-# including <ext/hash_set>. Nothing we can do about that until they change what
-# they include, so this just suppresses it.
+# This suppresses the warning "This file includes at least one deprecated or antiquated
+# header which may be removed without further notice at a future date", which is caused
+# by the USD library including <ext/hash_set> on Linux. This has been reported at:
+# https://github.com/PixarAnimationStudios/USD/issues/1057.
 add_definitions(-D_GLIBCXX_PERMIT_BACKWARD_HASH)
 
 set(INC