From e1d4050ad9ba8b487a51e16f7a1ee64ca801a537 Mon Sep 17 00:00:00 2001
From: Axel Huebl <axel.huebl@plasma.ninja>
Date: Sat, 7 Apr 2018 18:06:04 +0200
Subject: [PATCH] C++11: Target Compile Property

Express the C++11 dependency as public compile property rather
than a CMake project-wide flag.
---
 CMakeLists.txt | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b467b2fe66..906bbcecaa 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,10 +9,6 @@ set(openPMD_STANDARD_VERSION 1.1.0)
 
 set(CMAKE_MODULE_PATH "${openPMD_SOURCE_DIR}/cmake")
 
-# Force C++11
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED True)
-
 
 # Project structure ###########################################################
 #
@@ -234,6 +230,9 @@ set(IO_SOURCE
 add_Library(openPMD ${CORE_SOURCE} ${IO_SOURCE})
 
 # properties
+target_compile_features(openPMD
+    PUBLIC cxx_std_11
+)
 set_target_properties(openPMD PROPERTIES
     POSITION_INDEPENDENT_CODE ON
 )