Hi, In response to
https://bugreports.qt-project.org/browse/QTBUG-32599 I first considered adding something like if(NOT QT_INCLUDE_DIRS_NO_SYSTEM) set_property(TARGET Qt5::Core SYSTEM_INTERFACE_INCLUDE_DIRECTORIES ${Qt5Core_INCLUDE_DIRS} ) endif() for each imported target, which would cause CMake to treat the includes for it as system includes. Then I had the idea that I didn't like the API of set(QT_INCLUDE_DIRS_NO_SYSTEM 1) find_package(Qt5Core) and I prefered find_package(Qt5Core) add_library(foo ...) target_link_libraries(foo SYSTEM Qt5::Core) which has a similar effect as the SYSTEM keyword in target_include_directories. I implemented that without a test so far in tll-system-includes-signature in my clone. However, the motivation for that is that I generally want to treat all 'external' headers as system includes, and Qt is just a common external dependency. Should we treat the INTERFACE_INCLUDE_DIRECTORIES of all IMPORTED targets as SYSTEM includes automatically? Thanks, Steve. -- Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
