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cmake: match warnings more strictly in C++ feature checks

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Require the word "warning" to appear at the start of a line, after
whitespace, or after a `:`.  This is the same that CTest launchers use
to match warnings.  It avoids matching "warning" inside file paths.
Fixed in cmake 3.14.0.

Signed-off-by: Moritz Warning <moritzwarning@web.de>
This commit is contained in:
Moritz Warning 2019-03-06 22:26:50 +01:00 committed by Hauke Mehrtens
parent ff3cfe0848
commit 7fc4dd3611
1 changed files with 25 additions and 0 deletions
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25
tools/cmake/patches/150-C-feature-checks-Match-warnings-more-strictly.patch Normal file
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@ -0,0 +1,25 @@
From 4ca5a815f2dfe9e1116cc2ccd5ddb56d0d00d12e Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 7 Mar 2019 14:55:54 -0500
Subject: [PATCH] C++ feature checks: Match warnings more strictly
Require the word "warning" to appear at the start of a line, after
whitespace, or after a `:`. This is the same that CTest launchers use
to match warnings. It avoids matching "warning" inside file paths.
Fixes: #19019
---
Source/Checks/cm_cxx_features.cmake | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Source/Checks/cm_cxx_features.cmake
+++ b/Source/Checks/cm_cxx_features.cmake
@@ -25,7 +25,7 @@ function(cm_check_cxx_feature name)
# Filter out xcodebuild warnings.
string(REGEX REPLACE "[^\n]* xcodebuild\\[[0-9]*:[0-9]*\\] warning: [^\n]*" "" check_output "${check_output}")
# If using the feature causes warnings, treat it as broken/unavailable.
- if(check_output MATCHES "[Ww]arning")
+ if(check_output MATCHES "(^|[ :])[Ww][Aa][Rr][Nn][Ii][Nn][Gg]")
set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE)
endif()
if(CMake_HAVE_CXX_${FEATURE})