Go to file
Alexey Edelev e80b010795 Use target_link_options to propagate object libraries
target_link_options are placed by CMake at the beginning of a linker
line. This gives us an opportunity to use the function to propagate
object libraries. This change adds one more check in the root
Config.cmake file. If CMP0099 policy is enabled, CMake enables
propagating of the linking options when linking two static libraries
using the PRIVATE linking visibility, so we can rely on the correct
linking order and expect object libraries to be propagated.

Note that on the platforms where cmake version is higher than 3.16
Qt uses CMP0099 NEW in functions like qt_add_executable. This means
that at the moment of creating an executable target the TARGET_POLICY
genex will also be NEW, so we do not take into the account the user
defined CMP0099.

If the CMP0099 policy is not available for a certain CMake version
we skip the TARGET_POLICY check and simply disable propagation of
the object libraries using target_link_options for both user and Qt
libraries. This is applicable for the CMake versions 3.16 and less.

Linking approaches have the following priorities(from higher to lower)
after this change:
  - target_link_libraries - works if link order matters not or CMake
    version greater equal 3.21.
  - target_link_options - works if CMP0099 is set to NEW by user or
    if the CMake version is greater than or equal to 3.17 and an
    executable is created using Qt functions.
  - object library finalizer - works if CMake version is greater equal
    3.19 or qt6_finalize_target is called explicitly.
  - target_sources - is used when all the other approaches could not
    be used.

Amends a1fd4f51ad
Amends 3329212815

Pick-to: 6.2
Change-Id: I14f88caeb04e357191c840abeab89b03e210b796
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2021-07-02 15:17:06 +02:00
.github/workflows Github Actions: many minor updates 2021-01-22 18:48:54 +01:00
bin CMake: Allow usage of QtStandaloneTestTemplateProject as package component 2021-04-23 13:31:04 +02:00
cmake Use target_link_options to propagate object libraries 2021-07-02 15:17:06 +02:00
coin Add instructions to collect results from COIN test run 2021-07-01 08:46:57 +00:00
config.tests Fix the precompile_header configure test 2021-06-19 01:08:23 +02:00
dist Add Qt 6.0.0 changes file 2020-11-16 10:02:08 +02:00
doc Doc: Terminate C-comment 2021-06-30 13:36:26 +02:00
examples Android: trim down the examples manifests from obsolete tags 2021-07-01 23:54:15 +03:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
libexec Fix invalid path to the qt-cmake.bat when calling qt-internal-configure-tests.bat 2021-06-23 14:26:18 +02:00
mkspecs Fix qmlimportscanner path for android deployment settings 2021-06-28 18:27:51 +02:00
qmake Fix QT_HOST_DATA for builds setting INSTALL_MKSPECSDIR 2021-06-23 22:12:41 +02:00
src Use target_link_options to propagate object libraries 2021-07-02 15:17:06 +02:00
tests Use target_link_options to propagate object libraries 2021-07-02 15:17:06 +02:00
util CMake: Fix Vulkan to be found when targeting Android 2021-07-01 18:57:50 +02:00
.cmake.conf Conan: Read status flag from .cmake.conf 2021-06-21 15:19:16 +03:00
.gitattributes Give batch files CRLF line endings 2020-11-04 15:02:29 +00:00
.gitignore .gitignore: Qt Creator files cleanup 2020-09-25 07:50:15 +02:00
.lgtm.yml Skip LGTM analysis for the bootstrap library and tools 2020-07-16 01:04:34 +02:00
.qmake.conf Bump version 2021-02-18 07:20:21 +02:00
.tag Update the git-archive export options 2012-09-07 15:39:31 +02:00
CMakeLists.txt CMake: Fix global 'apk' target to actually build all apks 2021-06-08 22:37:50 +02:00
conanfile.py Conan: simplify Conan recipe 2021-06-21 15:19:16 +03:00
config_help.txt Allow to load -developer-build without configurations into an IDE 2021-05-07 21:06:58 +02:00
configure Remove the -qmake and -cmake configure arguments 2021-03-11 16:39:50 +01:00
configure.bat Remove superfluous variable assignments from configure.bat 2021-03-11 16:39:54 +01:00
configure.cmake Fix the precompile_header configure test 2021-06-19 01:08:23 +02:00
dependencies.yaml Re-add dependencies.yaml now that qt5.git wip/qt6 builds fine 2019-09-18 13:19:31 +02:00
LICENSE.FDL Initial import from the monolithic Qt. 2011-04-27 12:05:43 +02:00
LICENSE.GPL2 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3-EXCEPT Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPLv3 Remove LICENSE.GPLv3, LICENSE.LGPLv21, LGPL_EXCEPTION.txt 2018-04-16 11:02:14 +00:00
LICENSE.QT-LICENSE-AGREEMENT Update enterprise license agreement v4.2.1 2019-12-18 13:07:19 +02:00
qt_cmdline.cmake CMake: Propagate sanitizer flags to public projects 2021-06-25 12:33:58 +02:00
sync.profile Implement generating of a module cpp export header 2021-06-24 20:40:49 +02:00