From 1a9ece7cd4577fe7b7c7c6793c57960ed229520a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Tue, 7 Feb 2017 20:49:22 +0100
Subject: [PATCH] Require C++11 through cmake

Summary:
This replaces the previous solution to require at least gcc 4.8 which
did not cover clang. As cmake has a proper way to check for 11, let's
use that.

Reviewers: #kwin, #plasma

Subscribers: plasma-devel, kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D4486
---
 CMakeLists.txt | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ada8270ec0..f64ebb831e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,12 +48,8 @@ include(ECMOptionalAddSubdirectory)
 
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0 -DQT_USE_QSTRINGBUILDER)
 
-# require at least gcc 4.8
-if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    if ("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "4.8")
-        message(SEND_ERROR "Version ${CMAKE_CXX_COMPILER_VERSION} of the ${CMAKE_CXX_COMPILER_ID} C++ compiler is not supported. Please use version 4.8 or later.")
-    endif()
-endif()
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(Qt5Multimedia QUIET)
 set_package_properties(Qt5Multimedia PROPERTIES