From 669b5d83ef1d930c80854236f324de2fdcecf57c Mon Sep 17 00:00:00 2001
From: Joost VandeVondele <Joost.VandeVondele@gmail.com>
Date: Thu, 21 May 2020 08:25:37 +0200
Subject: [PATCH] Improve CI testing

also enable CXXFLAGS="-D_GLIBCXX_DEBUG" in CI.

closes https://github.com/official-stockfish/Stockfish/pull/2692

No functional change.
---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index e2b42e6d..e2ae61be 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,7 +50,7 @@ script:
   - echo "Reference bench:" $benchref
   #
   # Verify bench number against various builds
-  - export CXXFLAGS=-Werror
+  - export CXXFLAGS="-Werror -D_GLIBCXX_DEBUG"
   - make clean && make -j2 ARCH=x86-64 optimize=no debug=yes build && ../tests/signature.sh $benchref
   - make clean && make -j2 ARCH=x86-32 optimize=no debug=yes build && ../tests/signature.sh $benchref
   - make clean && make -j2 ARCH=x86-32 build && ../tests/signature.sh $benchref
-- 
2.39.2