From e205c0dafab591b14af0f39d227de22bdc7ceff5 Mon Sep 17 00:00:00 2001
From: Nyall Dawson <nyall.dawson@gmail.com>
Date: Sun, 15 Aug 2021 09:14:06 +1000
Subject: [PATCH] Fix macos build

---
 external/libdxfrw/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/external/libdxfrw/CMakeLists.txt b/external/libdxfrw/CMakeLists.txt
index 1778265b06f..a33fa497279 100644
--- a/external/libdxfrw/CMakeLists.txt
+++ b/external/libdxfrw/CMakeLists.txt
@@ -27,6 +27,9 @@ target_include_directories(libdxfrw PUBLIC
 
 set_property(TARGET libdxfrw PROPERTY POSITION_INDEPENDENT_CODE ON)
 
+# require c++11
+target_compile_features(libdxfrw PRIVATE cxx_std_11)
+
 if(FALSE)
 if(DOXYGEN_FOUND)
   add_custom_target(doxygen-dxfrw ALL