From cb48952aa7531eb953931a0586c2d1f81f57673e Mon Sep 17 00:00:00 2001
From: Chun Cai <amoycaic@gmail.com>
Date: Thu, 26 Aug 2021 14:36:02 +0800
Subject: [PATCH] Fix typo: CMAKE_COMPILER_IS_GNUCXX

The flag won't work without language specified.
See https://cmake.org/cmake/help/v3.4/variable/CMAKE_COMPILER_IS_GNULANG.html
---
 source/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index cc230750fb..942d5d3026 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.7)
 project(DeePMD)
-if (CMAKE_COMPILER_IS_GNU)
+if (CMAKE_COMPILER_IS_GNUCXX)
   set(CMAKE_LINK_WHAT_YOU_USE TRUE)
 endif ()