From 5dacdd820edb73654652a6260475fde6182e994e Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 27 Mar 2021 13:55:21 +0100
Subject: [PATCH] smesh: [skip ci] suppress C++17 related warnings about
 extensions

---
 src/3rdParty/salomesmesh/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/3rdParty/salomesmesh/CMakeLists.txt b/src/3rdParty/salomesmesh/CMakeLists.txt
index 3424b7858222..5bf7e0e0b9ca 100644
--- a/src/3rdParty/salomesmesh/CMakeLists.txt
+++ b/src/3rdParty/salomesmesh/CMakeLists.txt
@@ -46,6 +46,12 @@ elseif(CMAKE_COMPILER_IS_CLANGXX)
     if (_flag_found)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-missing-field-initializers")
     endif ()
+
+    unset(_flag_found CACHE)
+    check_cxx_compiler_flag("-Wno-c++17-extensions" _flag_found)
+    if (_flag_found)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-c++17-extensions")
+    endif ()
 endif()