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| author | Tor Arne Vestbø <tor.arne.vestbo@qt.io> | 2019-09-23 13:35:06 +0200 |
|---|---|---|
| committer | Alexandru Croitor <alexandru.croitor@qt.io> | 2019-09-24 07:27:58 +0000 |
| commit | 2cc3720a573e982c20a0f01f8db4dd8efe4f31c0 (patch) | |
| tree | 70f91f754ffb36ec2afd54b10426d793e3bfc337 /cmake | |
| parent | 8049ef3d4d1e6c458211a3c86ea35e9fe9b29ff5 (diff) | |
macOS: Prevent warnings about object files without any symbols
Change-Id: I0860b95cd75f536ff20defde97c3df7dc78a1e18
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/QtBuild.cmake | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/cmake/QtBuild.cmake b/cmake/QtBuild.cmake index 4ddbcff3ab..8f249a15fe 100644 --- a/cmake/QtBuild.cmake +++ b/cmake/QtBuild.cmake @@ -231,6 +231,18 @@ set(QT_BUILD_INTERNALS_EXTRA_CMAKE_CODE "") # This will be /path/to/qtbase/tests when building standalone tests. set(QT_TOP_LEVEL_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}") +# Prevent warnings about object files without any symbols. This is a common +# thing in Qt as we tend to build files unconditionally, and then use ifdefs +# to compile out parts that are not relevant. +if(CMAKE_HOST_APPLE AND APPLE) + foreach(lang ASM C CXX) + # We have to tell 'ar' to not run ranlib by itself, by passing the 'S' option + set(CMAKE_${lang}_ARCHIVE_CREATE "<CMAKE_AR> qcS <TARGET> <LINK_FLAGS> <OBJECTS>") + set(CMAKE_${lang}_ARCHIVE_APPEND "<CMAKE_AR> qS <TARGET> <LINK_FLAGS> <OBJECTS>") + set(CMAKE_${lang}_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols <TARGET>") + endforeach() +endif() + # Functions and macros: # qt_remove_args can remove arguments from an existing list of function |