The plugin lookup mechanism doesn't handle the situation, when the
plugin is available but it's private dependency(static plugin case)
is missing. In this case we currently silently bypass the dependency
lookup and create targets. So users see the confusing message about
missing linked target, like:
Qt6QSQLiteDriverPluginTargets.cmake:61 (set_target_properties):
The link interface of target "Qt6::QSQLiteDriverPlugin" contains:
SQLite::SQLite3
but the target was not found. Possible reasons include:
* There is a typo in the target name.
* A find_package call is missing for an IMPORTED target.
* An ALIAS target is missing.
This indeed should be handled properly and we should omit creating
targets especially if users don't really use the plugin directly.
Also if dependencies are not satisfied it looks logically to set
the <plugin>_FOUND to false as this will be yet another indicator
for user that the plugin is not found.
Task-number: QTBUG-132244
Pick-to: 6.8 6.9 6.5
Change-Id: I8685163df0dee3a728c724901f69780569ffcad5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
The usage of this variable was removed in the past, and there's no
reason to keep it around.
Change-Id: I786acc52ed903b20d4eb14bc057b45bff72ceffe
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Our QtPluginConfig.cmake.in files have code to skip loading plugins
unless the repo is found in the QT_REPO_DEPENDENCIES variable
or when building standalone parts.
The problem is that QT_INTERNAL_BUILD_STANDALONE_PARTS is only
assigned a value after all the find_package calls have executed,
which is too late for the qtsvg standalone tests, because the svg icon
config file would already be loaded and skipped.
This code path checked for QT_BUILD_STANDALONE_TESTS, before the
introduction of the QT_INTERNAL_BUILD_STANDALONE_PARTS variable.
QT_BUILD_STANDALONE_TESTS is set by the qt-internal-configure-tests
script, so it is always available.
Restore the previous check for QT_BUILD_STANDALONE_TESTS, while
keeping the new variable as well.
This fixes the tst_qicon_svg test to pass in a static standalone tests
build.
Amends 62905163bf887c2c2c9ba7edcd64c96d237a6e95
Restores behavior of be1ee03a0fafa28efa0c0e45f21f9dc684625957
Pick-to: 6.8
Task-number: QTBUG-90820
Task-number: QTBUG-96232
Change-Id: I19f620a39fe530bf7f96498cfad1c90621983eb6
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Toni Saario <toni.saario@qt.io>
When configuring standalone tests with some installable plugins, these
plugins land inside the actual build/install directory after
build/installation. This makes imposible to configure the same
standalone tests second time since the same plugin targets attempt to
be created within the build tree, while they are already found by the
respective find_package(<Qt Module>) call.
This change introduces and uses the tests-wide
qt_internal_configuring_tests variable to mark the plugins that are
built within the tests build tree and disallows loading them by the
find_package call when building standalone tests.
The trick is simple: PluginConfig.cmake files skip plugin creation if
the respective plugin is a test plugin and the standalone test project
matches the plugin repo project.
Also we now oblige module maintainers to mark such plugins using the
TEST_PLUGIN argument of the qt_internal_add_plugin function. This is
needed to prevent breakage when the exact test is build alone and the
qt_internal_configuring_tests is not set. If plugin is not marked as
TEST_PLUGIN and is built as part of test build tree the warning is
displayed to remind the maintainer about the missing flag. Suggest to
make this flag mandatory for all test plugins, and throw a FATAL_ERROR
if the plugin is not marked respectively.
Fixes: QTBUG-127781
Change-Id: I51f8b2f2c979911dad7c90926d841c8b8f1bb5d7
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Introduce a new libexec/qt-internal-configure-examples script that
allows to configure and build "standalone examples" just like
"standalone tests".
This is a prerequisite for using deployment api in examples for prefix
builds, otherwise deployment api gets confused not finding various
information that it expects from an installed qt.
Because the various conditions in the build system for standalone
examples are similar to standalone tests, introduce a new
QT_BUILD_STANDALONE_PARTS variable and use that in the conditions.
The variable should not be set by the user, and is instead set by the
build system whenever QT_BUILD_STANDALONE_TESTS/EXAMPLES is set.
Unfortunately due to no common file being available before the first
project() call, in qtbase builds, per-repo builds and top-level builds,
we need to duplicate the code for setting QT_BUILD_STANDALONE_PARTS for
all three cases.
Task-number: QTBUG-90820
Task-number: QTBUG-96232
Change-Id: Ia40d03a0e8f5142abe5c7cd4ff3000df4a5f7a8a
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
According to QUIP-18 [1], all build system files
should be BSD-3-Clause.
The files in this patch are part of the build system.
[1]: https://contribute.qt-project.org/quips/18
Pick-to: 6.7
Task-number: QTBUG-121787
Change-Id: Ibc6a60a9b009fab0c953e8e3269533c121e4511e
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
The change introduced in 98e8180e56322ce065e39cc1ef1d65b54caa8c25
fixes reconfiguration issues for repositories that provide plugins
associated with modules from a different repository
(QSvgPlugin -> QtGui -> qtbase).
It does so by only loading the public Plugin CMake packages of
dependent repositories.
For executables / tests that are built as part of the current
repository, plugins are linked via a different simplified mechanism in
qt_add_internal_plugin and qt_internal_add_plugin in order to prevent
exporting link cycles between plugins and Qt modules.
This works for the majority of in-tree tests, but unfortunately breaks
static standalone tests.
For example in qtbase neither mechanism will link plugins to the
standalone tests:
- qtbase has no repo dependencies, so the first mechanism (loading of
public plugin packages) is skipped because we assume we are merely
reconfiguring the main build of qtbase and we don't want to
accidentally create duplicate plugin targets
- because a standalone test configuration does not call
qt_internal_add_plugin, no association is done between qt plugin
and module and thus all tests (qt_internal_add_test ->
qt_internal_add_executable) don't get the simplified plugin
linking
Fix this by allowing loading of the public CMake plugin packages when
doing standalone tests. It should be safe to do so because we don't
build any plugins in this case, only tests.
Amends 98e8180e56322ce065e39cc1ef1d65b54caa8c25
Pick-to: 6.1
Task-number: QTBUG-87580
Change-Id: I690a0366c73a24e7f49c65ed13cd70362c273d81
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
When building and installing a Qt repo that provides plugins for a Qt
module within a different repository (for example, qtimageformats
providing imageformat plugins for QtGui), re-configuring that repository
would result in configuration errors like
"add_library cannot create ALIAS target "Qt6::QTgaPlugin" because
another target with the same name already exists."
This happened, because the find_package(Qt6 COMPONENTS Gui) calls pulled
in the Qt6*PluginConfig.cmake files that create imported targets for the
plugins we want to build.
To fix this, when building Qt, we now load only plugins that are
provided by repositories the currently building repository depends on.
We read the repo dependencies from dependencies.yaml when the
Qt6BuildInternals package is loaded, but only in static builds and only
if we're currently building a Qt repository.
To find out whether we're building a Qt repository, we check whether
QT_REPO_MODULE_VERSION is defined. We cannot check QT_BUILDING_QT,
because that variable is not available for the first find_package calls
in the repository's top-level project file.
In each Qt6*PluginConfig.cmake file, we bail out if the plugin's
repository is not one of the ones in QT_REPO_DEPENDENCIES.
Fixes: QTBUG-86670
Fixes: QTBUG-91887
Change-Id: I8f6c8398032227032742f1ca019e983ff2bcd745
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
When a CMake release introduces a new policy that affects most Qt
modules, it may be appropriate to make each module aware of that newer
CMake version and use the NEW policy without raising the minimum CMake
version requirement. To reduce the churn associated with making that
change across all Qt modules individually, this change allows it to be
updated in a central place (qtbase), but in a way that allows a Qt
module to override it in its own .cmake.conf file if required (e.g. to
address the issues identified by policy warnings at a later time). The
policies are modified at the start of the call to
qt_build_repo_begin().
For commands defined by the qtbase module, qtbase needs to be in
control of the policy settings at the point where those commands are
defined. The above mechanism should not affect the policy settings for
these commands, so the various *Config.cmake.in files must not specify
policy ranges in a way that a Qt module's .cmake.conf file could
influence.
Starting with CMake 3.12, policies can be specified as a version range
with the cmake_minimum_required() and cmake_policy() commands. All
policies introduced in CMake versions up to the upper limit of that
range will be set to NEW. The actual version of CMake being used only
has to be at least the lower limit of the specified version range.
This change uses cmake_minimum_required() rather than cmake_policy()
due to the latter not halting further processing upon failure.
See the following:
https://gitlab.kitware.com/cmake/cmake/-/issues/21557
Task-number: QTBUG-88700
Pick-to: 6.0
Change-Id: I0a1f2611dd629f847a18186394f500d7f52753bc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Building a user project in Release configuration against a Qt built with
CMAKE_CONFIGURATION_TYPES=RelWithDebInfo;Debug led to the user project
being linked against the Debug Qt libraries. This is especially painful
with MSVC where debug and release runtimes are incompatible.
We now create *AdditionalTargetInfo.cmake files along the
exported *Targets.cmake files that set the IMPORT_*_<CONFIG> properties
to the values of the release config Qt was built with.
User projects built with an unknown
configuration (CMAKE_BUILD_TYPE=ArbitraryName) will link against a
release Qt. This can be controlled by setting the variable
QT_DEFAULT_IMPORT_CONFIGURATION to, for example, DEBUG in the user
project.
Fixes: QTBUG-86743
Change-Id: I12c4b065a9845c7317f6acddab46b649f2732c9e
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
For qt_import_qml_plugins to work, it needs to have access to the Qml
plugin targets by the time find_package(Qt6Qml) is called.
To do that, we modify the generation of Qml plugin Config, Targets and
Dependencies files to go into a special 'QmlPlugins' subfolder of the
Qml package.
The Qml package will then GLOB include all the Config files in that
folder, to make them available whenever find_package(Qt6Qml) is
called.
This is similar to how the Qt plugins were glob included in the CMake
integration of Qt 5.15. In fact that glob including is missing in Qt 6
for regular Qt plugins, and should be implemented in a following
change. Currently the Qt Plugins config files that are included are
hardcoded to the list of known plugins at Qt configuration time.
As a drive-by to make this all work, the naming of the various Config
and Dependencies files has been normalized to include the Qt6 prefix.
This is done for both regular Qt plugins and Qml plugins.
Task-number: QTBUG-85961
Change-Id: Id20da72337ca2945fa330ea6fb43535e44a83292
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
The first issue is that instead of arg_OUTPUT_TARGET we should use
rcc_OUTPUT_TARGET (there was also a typo in the OUTPUT word).
The second issue came with the fact that the object library targets
that were created for resources had a "Qt6::" namespace prefix in the
exported Targets files, and yet the link generator expression did not
contain the prefix. This failed when building qtsvg in a static build,
because the exported object library could not be found.
The solution is to use the TARGET_NAME generator expression which
takes care of adjusting the name of the target when exported, thus
making the linking work both when building qtbase and when building
qtsvg.
This had the fallout, that all resource object libraries need
to be associated with an export set and installed. This wasn't the case
for plugins, because plugins have an export name of the form
"FooTargets", whereas the export name for the resource object library
is "Qt6FooTargets".
Adjust the export names of plugins to be the same as for modules and
resource library objects (aka contain the "Qt6 prefix").
Change-Id: I1ca28d20c51e4447e5783cc20571a68ec77f6513
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Create CMake config files which can be used from the very same CMake
project. These CMake config files simply do not create any targets,
controlled via the QT_NO_CREATE_TARGETS.
This patch also allows to build qtbase.git:examples as a standalone
project, against an already-built Qt.
Ran this:
ag -s "QT " examples -l -0 | xargs -0 -n 1 .../util/cmake/pro2cmake.py --is-example
Task-number: QTBUG-74713
Change-Id: I44cce5a4048618b30f890c5b789592c227a8b47d
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This commit introduces infrastructure work to allow static builds of Qt
to handle importing of plug-ins.
Change-Id: Ife0ca3ca7276ea8ec96fe0eb6adf934fad7620ec
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
