From 59ae42a1792697165507a04f4ef4879487aba2ca Mon Sep 17 00:00:00 2001
From: sriramch <33358417+sriramch@users.noreply.github.com>
Date: Thu, 6 Jun 2019 14:08:08 -0700
Subject: [PATCH] Ensure gcc is at least 5.x (#4538)

* make sure that xgboost has gcc 5.x at the very least to build on gcc tool chain
---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 10d191d9f..a4c5b7a27 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,10 @@ if (MSVC)
   cmake_minimum_required(VERSION 3.11)
 endif (MSVC)
 
+if (CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
+  message(FATAL_ERROR "GCC version must be at least 5.0!")
+endif()
+
 set_default_configuration_release()
 
 #-- Options