From e9a7f4d389047cfecc0b3150fbf406f65cf5117d Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Thu, 18 Jun 2020 11:01:52 +0200
Subject: Upgrade C++ standard to C++17

Ref T76783
---
 CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7374a54354f..c04f2600894 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1561,13 +1561,13 @@ if(WITH_PYTHON)
 endif()
 
 if(MSVC)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++14")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++17")
 elseif(
   CMAKE_COMPILER_IS_GNUCC OR
   CMAKE_C_COMPILER_ID MATCHES "Clang" OR
   CMAKE_C_COMPILER_ID MATCHES "Intel"
 )
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
 else()
   message(FATAL_ERROR "Unknown compiler ${CMAKE_C_COMPILER_ID}, can't enable C++14 build")
 endif()
-- 
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