From 4d611868dfe37e73aaba4cdfde37b17e8a2ec7c1 Mon Sep 17 00:00:00 2001
From: Cristian Adam <cristian.adam@gmail.com>
Date: Fri, 29 Sep 2017 02:37:00 +0200
Subject: Check*: Added include guards

---
 Modules/CheckIncludeFileCXX.cmake | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'Modules/CheckIncludeFileCXX.cmake')

diff --git a/Modules/CheckIncludeFileCXX.cmake b/Modules/CheckIncludeFileCXX.cmake
index 19b1ef6f80..7948babfa2 100644
--- a/Modules/CheckIncludeFileCXX.cmake
+++ b/Modules/CheckIncludeFileCXX.cmake
@@ -33,6 +33,8 @@
 # See modules :module:`CheckIncludeFile` and :module:`CheckIncludeFiles`
 # to check for one or more ``C`` headers.
 
+include_guard(GLOBAL)
+
 macro(CHECK_INCLUDE_FILE_CXX INCLUDE VARIABLE)
   if(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}")
     if(CMAKE_REQUIRED_INCLUDES)
-- 
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