From: Matthias Maier <tamiko@43-1.org>
Date: Thu, 2 Feb 2017 00:16:05 +0000 (-0600)
Subject: CMake: Use -isystem for third party headers
X-Git-Tag: v9.0.0-rc1~444^2~2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=30e56733585d94aac39603af14faf5058232cf3c;p=dealii.git

CMake: Use -isystem for third party headers
---

diff --git a/cmake/macros/macro_deal_ii_setup_target.cmake b/cmake/macros/macro_deal_ii_setup_target.cmake
index cd1601e163..597f4360af 100644
--- a/cmake/macros/macro_deal_ii_setup_target.cmake
+++ b/cmake/macros/macro_deal_ii_setup_target.cmake
@@ -103,9 +103,8 @@ MACRO(DEAL_II_SETUP_TARGET _target)
     SET(_build "RELEASE")
   ENDIF()
 
-  SET_PROPERTY(TARGET ${_target} APPEND PROPERTY
-    INCLUDE_DIRECTORIES "${DEAL_II_INCLUDE_DIRS}"
-    )
+  TARGET_INCLUDE_DIRECTORIES(${_target} SYSTEM PRIVATE ${DEAL_II_INCLUDE_DIRS})
+
   SET_PROPERTY(TARGET ${_target} APPEND_STRING PROPERTY
     LINK_FLAGS " ${DEAL_II_LINKER_FLAGS} ${DEAL_II_LINKER_FLAGS_${_build}}"
     )
diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 14c2e42fd1..cb83177466 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -23,6 +23,7 @@ INCLUDE_DIRECTORIES(
   ${CMAKE_BINARY_DIR}/include/
   ${CMAKE_SOURCE_DIR}/include/
   ${DEAL_II_BUNDLED_INCLUDE_DIRS}
+  SYSTEM
   ${DEAL_II_INCLUDE_DIRS}
   )