From 911d703f5794b037ec9f7bd097eb4d24a900cdc5 Mon Sep 17 00:00:00 2001
From: Priit Laes <plaes@plaes.org>
Date: Sat, 20 Mar 2021 21:23:05 +0200
Subject: [PATCH] build: Use -Wno-deprecated-copy for GCC 9+

OpenCascade causes a lot of warnings due to -Wdeprecated-copy on GCC 9+.
These warnings are also emitted with clang, but only once per file.
---
 cmake/CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 213dd7a6fc..d98bfe90de 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -466,6 +466,10 @@ ElSE()
     else()
         add_definitions(-Wno-maybe-uninitialized)
     endif()
+    if (CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 9.0)
+        # OpenCascade spews a lot of deprecated-copy warnings
+        add_definitions(-Wno-deprecated-copy)
+    endif()
     # -fPIC is not relevant on Windows and creates pointless warnings
     if (UNIX)
         add_definitions(-fPIC)