From eb3abf8b2ba514cec7d882bcde9d136fa3e023b7 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Tue, 19 Sep 2017 09:22:54 -0400
Subject: C++ feature checks: Prepare for multiple check output filters

---
 Source/Checks/cm_cxx_features.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Source/Checks/cm_cxx_features.cmake b/Source/Checks/cm_cxx_features.cmake
index ab80f5b..2dfd695 100644
--- a/Source/Checks/cm_cxx_features.cmake
+++ b/Source/Checks/cm_cxx_features.cmake
@@ -14,8 +14,9 @@ function(cm_check_cxx_feature name)
       CMAKE_FLAGS ${maybe_cxx_standard}
       OUTPUT_VARIABLE OUTPUT
       )
+    set(check_output "${OUTPUT}")
     # Filter out MSBuild output that looks like a warning.
-    string(REGEX REPLACE " +0 Warning\\(s\\)" "" check_output "${OUTPUT}")
+    string(REGEX REPLACE " +0 Warning\\(s\\)" "" check_output "${check_output}")
     # If using the feature causes warnings, treat it as broken/unavailable.
     if(check_output MATCHES "[Ww]arning")
       set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE)
-- 
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