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CMake: Enable C++11 support on Qt5 targets

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Implicitly add the minimum required `-std=...` to Qt5 module targets.

Use the newly introduced INTERFACE_COMPILE_FEATURES property for this,
which is available starting from CMake version 3.1.

This also fixes the Qt5 CMake tests, which previously try-compiled projects
using Qt 5.7 headers in non-C++11 mode, thus failed.

Change-Id: I54fc0e07403b646b5d6ac3ab6b8b47119b4feef6
Reviewed-by: Stephen Kelly <steveire@gmail.com>
This commit is contained in:
Kevin Funk 2016-01-06 17:37:13 +01:00 committed by Kevin Funk
parent 4511075fb4
commit aaf0b72a81
1 changed files with 2 additions and 0 deletions
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src/corelib/Qt5CoreConfigExtras.cmake.in
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@ -93,6 +93,8 @@ set(Qt5_DISABLED_FEATURES
set_property(TARGET Qt5::Core APPEND PROPERTY INTERFACE_COMPILE_DEFINITIONS $<$<NOT:$<CONFIG:Debug>>:QT_NO_DEBUG>)
set_property(TARGET Qt5::Core PROPERTY INTERFACE_COMPILE_FEATURES cxx_decltype)
!!IF contains(QT_CONFIG, reduce_exports)
set(QT_VISIBILITY_AVAILABLE \"True\")
!!ENDIF