From 24f5ad6f9056234e3d1060f3239eab8c02311c58 Mon Sep 17 00:00:00 2001
From: Andre Sailer <andre.philippe.sailer@cern.ch>
Date: Mon, 19 Aug 2019 16:09:11 +0200
Subject: [PATCH] Travis: Unset CPATH to avoid implicit include directories to
 be added in cmake

---
 .dd4hep-ci.d/compile_and_test.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.dd4hep-ci.d/compile_and_test.sh b/.dd4hep-ci.d/compile_and_test.sh
index af4e08d47..a5dc21cf2 100755
--- a/.dd4hep-ci.d/compile_and_test.sh
+++ b/.dd4hep-ci.d/compile_and_test.sh
@@ -5,6 +5,7 @@ source /DD4hep/.dd4hep-ci.d/init_x86_64.sh
 cd /DD4hep
 mkdir build
 cd build
+unset CPATH  # causes implicit includes to be added in cmake, preventing setting some system libraries to -isystem
 cmake -GNinja -DDD4HEP_USE_GEANT4=ON -DBoost_NO_BOOST_CMAKE=ON -DDD4HEP_USE_LCIO=ON -DBUILD_TESTING=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-fdiagnostics-color=always -Werror" -DCMAKE_CXX_STANDARD=${STANDARD} .. && \
 ninja && \
 ninja install && \
-- 
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