Commit Graph

72 Commits

Author SHA1 Message Date
Alexandru Croitor
bb2d1f8119 Abstract and fix usages of QT_KNOWN_MODULES
In some places of the build system we need to iterate over repo specific
Qt known modules (aka the ones that are built in the current project).
In other places we need to iterate over the whole list of known Qt
modules (those found via find_package + the ones built in the
current project).

Introduce two separate functions that provide access to either the
former or latter, and adjust all existing usages of QT_KNOWN_MODULES as
needed.

Change-Id: Ica96d0cfe690b9aaaa3f8c53bc84975bccad69c7
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
2019-08-23 09:25:37 +00:00
Leander Beernaert
b4bd6eaf92 Export architecture config test variables
Export the architecture configuration variables from QtBase. There are
other modules that require access to this information in order to
enable certain features (e.g: qml_jit in QtDeclarative).

Change-Id: If2c7f29ccb1c0b0a0db3d78ad133a2a6be12b5ad
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-08-14 07:32:18 +00:00
Alexandru Croitor
a285bcba26 Ugly fix for handling QT_SOURCE_TREE
QT_SOURCE_TREE is a variable that is set in qtbase/.qmake.conf.
In qtbase, it's used throughout various
projects to find cpp sources when building standalone tests (among
other things).
Everything works fine with qmake, because even if qmake is invoked
on the tests subfolder, qmake searches up the source directory tree
until it finds a .qmake.conf file, and uses that.

When building qttools with qmake, the qdoc project expects
to have a QT_SOURCE_TREE value, but it's not actually set in the
qttools/.qmake.conf file, so the generated include paths that use
that value are incorrect. Curiously the build still succeeds.

Now in CMake land we replaced QT_SOURCE_TREE with
CMAKE_SOURCE_DIR, but that does not work properly when doing a
standalone tests build, because the project in that case is the
tests one, and not the qtbase one, so configuration fails in a
developer build when trying to configure some private tests.

So far I've found that only qtbase actively uses this value.
A temporary fix is to save the qtbase source directory into a
QT_SOURCE_TREE variable inside the generated
BuildInternalsExtra.cmake file.

The pro2cmake script is changed to handle presence of QT_SOURCE_TREE
in a qrc file path. This is handled by finding the location of a
.qmake.conf file starting from the project file absolute path.
This is needed to stop the script from crashing when handling
the mimedatabase test projects for example.

The change also regenerates the relevant failing test projects, and
thus standalone tests (when doing developer builds aka private_tests
enabled) now configure and build successfully.

Change-Id: I15adc6f4ab6e3056c43ed850196204e2229c4d98
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-07-29 13:16:14 +00:00
Jean-Michaël Celerier
5769e1a2f6 cmake: allow client apps to load static plug-ins
Based in part on Kyle Edwards's implementation :
https://codereview.qt-project.org/c/qt/qtbase/+/243731

Example :
```
cmake_minimum_required(VERSION 3.15)
project(foo)

add_executable(foo main.cpp)

find_package(ICU COMPONENTS i18n uc data REQUIRED)
find_package(Qt6 COMPONENTS Core Gui REQUIRED)
target_link_libraries(foo Qt6::Core Qt6::Gui)

qt_import_plugins(foo
    INCLUDE
        Qt6::qxcb
    EXCLUDE
        Qt6::qgtk3 Qt6::qeglfs-kms-integration Qt6::qjpeg
)
```

Change-Id: If7736c42f669f7d7f43052cae59c28fc7fcb4156
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-07-05 14:56:56 +00:00
Leander Beernaert
a9d2c5b6d7 Android: Final changes for APK generation
Generate the ${MODULE}-android-dependencies.xml for the androiddeployqt
tool. This will ensure all the right plugins and dependencies are
packaged when generating the apk.

This change also changes the visibility for executable to default/public.
Not having this will cause the application to crash as we can't locate
main() in the executable (shared library).

Additionally pro2cmake conversion script has been updated to perform
the required conversions for the Android settings.

Finally, the 6 projects in QtBase that have Android dependencies have
been updated with the new script and the step that produces the xml
files in run at the end in QtPostProcess.cmake.

Change-Id: I9774ba1b123bc11cae972fa37054ef2c51988498
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-26 08:34:37 +00:00
Alexandru Croitor
fbfa067a30 Fix static builds
There were a few issues:
- Third party dependency info for plugins was not generated,
  because the depends and public_depends variables were not fetched.
  This caused issues when trying to use the qcocoa plugin in a
  consuming application, because Cups::Cups was not found.
- Privately linked libraries in extend_target were not considered when
  generating dependency info for modules. This caused issues in
  QtThemeSupport, becauese it could not find Qt::DBus, due to that
  target only being added as a private library in a conditional scope.
- Make sure to handle privately linked internal modules like
  PlatformModuleInternal to map to the Qt5 package, because there is no
  standalone package for it.

Also remove a TODO comment that says that qt_register_target_dependencies
should maybe be called in extend_target. That's already the case.

Change-Id: Ie99c52e800cd89e6f82008f1e38f4da5cd602929
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-06-12 14:26:28 +00:00
Simon Hausmann
319fd4ea9a Make WinMain linkage compatible with Qt 5
In Qt 5, the Qt5Core target was extended by Qt5CoreConfigExtras.cmake to
have a generator expression as interface linkage that would
conditionally link WinMain.

This patch implements the same through regular interface linkage right
in corelib. Since the linkage happens through a generator expression,
our dependency generator does not see this as a dependency. Therefore we
add this as an unconditional package dependency for corelib, on Windows.

In theory this could be done also in winmain's CMakeLists.txt, as
targets can be extended outside of their directory. However this adds a
directory id (WinMain:@<023423>) to the linkage, which mysteriously is
not removed on the exported core target.

Change-Id: If2abb9ba790f51274f582c9ec28c13d968b84302
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CMake Build Bot
2019-06-12 14:22:30 +00:00
Kevin Funk
af074c2c0d cmake: Generate QtBuildInternalsExtra at conftime
... using configure_file.

Change-Id: Ibe3522c33e20a86c454b23919547775624f84755
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-05 15:33:48 +00:00
Jean-Michaël Celerier
0900298d46 cmake: register plug-ins, create dependencies file
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>
2019-06-04 10:08:07 +00:00
Alexandru Croitor
8aab0cfaba Reset main_module_tool_deps in QtPostProcess
The variable was not reset when interating through all the Qt targets,
which resulted in QtTest wronlgy depending on QtWidgetTools.

Task-number: QTBUG-75875
Change-Id: I24da495fa53e9163992a1ed53f5cd7e1c6da5e51
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-22 14:31:23 +00:00
Alexandru Croitor
c7fd10a022 Allow building the tests directory as a standalone CMake project
At the moment, Coin builds tests as a separate qmake invocation
against an installed Qt. We need to support the same with CMake.

Change the tests subdirectory to be a standalone CMake project when
CMake does not detect an existing QtTest target while processing the
subdirectory. If the target exists, it means we are building the whole
repo, if the target does not exist, we need to call find_package
to find the installed Qt.

Refactor and move around a few things to make standalone tests build
successfully:
- add a new macro to set up paths to find QtSetup
- add a new macro to find all macOS frameworks
- add a new macro to set up building tests
- add a new macro that actually builds the tests
- export the INSTALL_CMAKE_NAMESPACE value into the BuildInternals
  Config file
- export the CMAKE_BUILD_TYPE value, because a test project doesn't
  have a .git subdir and thus defaults to be built in Release
  mode, even though qtbase might have been built in Debug, so to
  avoid the mixing, the propagate the build type
- stop overriding INSTALL_CMAKE_NAMESPACE and
  QT_CMAKE_EXPORT_NAMESPACE inside QtSetup if they are set, because
  the tests project doesn't specify a major version, and if we
  override the values, the moc / uic targets don't get the correct
  major version prefix and configuration fails

Change-Id: Ibdb03687302567fe325a15f6d1cb922c76240675
Fixes: QTBUG-75090
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-05-22 11:12:54 +00:00
Alexandru Croitor
4dacc09921 Save and set the CMAKE_INSTALL_PREFIX in BuildInternal's Config file
Once qtbase is built and installed, save the CMAKE_INSTALL_PREFIX
that was used during the build, and set it when a consumer calls
find_package(Qt5BuildInternals).

This fixes a bug where syncqt can not be found when building qtsvg,
while the developer specifies CMAKE_PREFIX_PATH to find the Qt packages,
but does not set the CMAKE_INSTALL_PREFIX.

Task-number: QTBUG-75544
Change-Id: I03fd23ba418af5115105610f3f9ed92664562945
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-05-15 17:34:05 +00:00
Alexandru Croitor
9542e78525 Use the qt_build_repo() macros for building qtbase as well
To implement this, create a new Qt5BuildInternals package.

All child Qt modules like qtsvg should use
find_package(Qt5BuildInternals) or
find_package(Qt5 COMPONENTS BuildInternals) in the their
top level CMakeLists.txt.
This will make the qt_build_repo() macros available.

For qtbase we slightly cheat, and specify a CMAKE_PREFIX_PATH
pointing to the source folder that contains the BuildInternals
package.

For the other modules we actually use a configured and installed
package Config file.

This change moves variables that used to be written into the
QtCore Config file into the BuildInternals package. This way
things that are relevant only for building additional Qt modules
does not pollute the QtCore package.

Task-number: QTBUG-75580
Change-Id: I5479adff2f7903c9c2862d28c05c7f485ce3e4eb
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-05-15 17:33:51 +00:00
Alexandru Croitor
02a015375a Implement developer / non-prefix builds
A non-prefix build is a build where you don't have to run
make install.

To do a non-prefix build, pass -DFEATURE_developer_build=ON when
invoking CMake on qtbase. Note that this of course also enables
developer build features (private tests, etc).

When doing a non-prefix build, the CMAKE_INSTALL_PREFIX cache variable
will point to the qtbase build directory.

Tests can be run without installing Qt (QPA plugins are picked up from
the build dir).

This patch stops installation of any files by forcing the
make "install" target be a no-op.

When invoking cmake on the qtsvg module (or any other module),
the CMAKE_INSTALL_PREFIX variable should be set to the qtbase build
directory.

The developer-build feature is propagated via the QtCore Config file,
so that when building other modules, you don't have to specify it
on the command line again.

As a result of the change, all libraries, plugins, tools, include dirs,
CMake Config files, CMake Targets files, Macro files, etc,
will be placed in the qtbase build directory, mimicking the file layout
of an installed Qt file layout.

Only examples and tests are kept in the separate module build
directories, which is equivalent to how qmake does it.

The following global variables contain paths for the
appropriate prefix or non prefix builds:
QT_BUILD_DIR, QT_INSTALL_DIR, QT_CONFIG_BUILD_DIR,
QT_CONFIG_INSTALL_DIR. These should be used by developers
when deciding where files should be placed.

All usages of install() are replaced by qt_install(), which has some
additional logic on how to handle associationg of CMake targets to
export names.

When installing files, some consideration should be taken if
qt_copy_or_install() needs to be used instead of qt_install(),
which takes care of copying files from the source dir to the build dir
when doing non-prefix builds.

Tested with qtbase and qtsvg, developer builds, non-developer builds
and static developer builds on Windows, Linux and macOS.

Task-number: QTBUG-75581
Change-Id: I0ed27fb6467662dd24fb23aee6b95dd2c9c4061f
Reviewed-by: Kevin Funk <kevin.funk@kdab.com>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-15 11:31:31 +00:00
Alexandru Croitor
a907d7df34 Handle generating find_dependency() calls for nolink targets
Previously we just recorded that Gui has to link against
Vulkan::Vulkan_nolink, but if an application consumed Gui, it wouldn't
find that target.

We need to record that if a module links against Vulkan_nolink, and
then generate a find_dependency(Vulkan) call in the module config
file.

We also have to assign the _nolink interface library to an export
(the Qt5 one), so that it gets installed as a target.

Change-Id: Icbc29ff4161ab18fdd162196ae128e29c1ee8c80
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-03 13:51:13 +00:00
Jean-Michaël Celerier
753d35cd56 cmake: move dependencies accumulation in QtPostProcess.cmake
This is needed because dependencies added after add_qt_module with extend_target
are currently not taken into account.

Task-number: QTBUG-75538
Change-Id: I2c72207fb88b2480e41a2c8550978fb194275617
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-03 12:42:43 +00:00
Alexandru Croitor
bcfc3dca5d Make module package depend on its own tool package
Also make the tool package depend on all tool packages that correspond
to the qt module dependencies.

So find_package(Qt5Widgets) implicitly calls find_package(Qt5WidgetTools).

And find_package(Qt5WidgetsTools) will call find_package for
Qt5GuiTools, and Qt5CoreTools.

This enhances the user experience, so that in modules like qtsvg, you
don't have to specify both find_package(Qt5Widgets) and
find_package(Qt5WidgetsTools), but only the former.

Or when cross building, you only need to specify Qt5WidgetTools, to get
both Core and Gui tools.

Change-Id: Ib1c5173a5b97584a52e144c22e38e90a712f727a
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-02 07:30:55 +00:00
Alexandru Croitor
9b0b464e82 Write find_dependency() calls in Qt Module config files
This change introduces a new function called qt_find_package()
which can take an extra option called PROVIDED_TARGETS, which
associates targets with the package that defines those targets.
This is done by setting the INTERFACE_QT_PACKAGE_NAME and
INTERFACE_QT_PACKAGE_VERSION properties on the imported targets.

This information allows us to generate appropriate find_dependency()
calls in a module's Config file for third party libraries.

For example when an application links against QtCore, it should also
link against zlib and atomic libraries. In order to do that, the
library locations first have to be found by CMake. This is achieved by
embedding find_dependency(ZLIB) and find_dependency(Atomic) in
Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake.
The latter is picked up when an application project contains
find_package(Qt5Core), and thus all linking dependencies are resolved.

The information 'which package provides which targets' is contained
in the python json2cmake conversion script. The generated output of
the script contains qt_find_package() calls that represent that
information.

The Qt5CoreDependencies.cmake file and which which dependencies it
contains is generated at the QtPostProcess stop.

Note that for non-static Qt builds, we only need to propagate public
3rd party libraries. For static builds, we need all third party
libraries.

In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any
scope, the targets on which the property is set, have to be GLOBAL.

Also for applications and other modules to find all required third
party libraries, we have to install all our custom Find modules, and
make sure they define INTERFACE IMPORTED libraries, and not just
IMPORTED libraries.

Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-02 07:30:42 +00:00
Alexandru Croitor
42d3b21c92 Export tool config and target files for each relevant module
CMake will now generate config and target files for each module that
provides tools. As a result, namespaced global targets such as
Qt5::moc or Qt5::rcc can be made available.

Third party projects that require just these tools, and not the Qt
modules themselves,  should specify CMAKE_PREFIX_PATH pointing to the
installed Qt location, and call find_package(Qt5CoreTools),
find_package(Qt5GuiTools), etc.

It is also possible to call
find_package(Qt5Tools REQUIRED Core Widgets) where the last option
is a list of modules whose tools should be imported.

Note that all the tools are in the Qt5::
namespace and not in the Qt5CoreTools:: or Qt5WidgetsTools::
namespace.

This commit also changes the behavior regarding when to build tools
while building Qt itself.

When cross compiling Qt (checked via CMAKE_CROSSCOMPILING) or when
-DQT_FORCE_FIND_TOOLS=TRUE is passed, tools added by add_qt_tool will
always be searched for and not built.
In this case the user has to specify the CMake variable QT_HOST_PATH
pointing to an installed host Qt location.

When not cross compiling, tools added by add_qt_tool are built from
source.

When building leaf modules (like qtsvg) that require some tool that was
built in qtbase (like moc), the module project should contain a
find_package(Qt5ToolsCore) call and specify an appropriate
CMAKE_PREFIX_PATH so that the tool package is found.

Note that because HOST_QT_TOOLS_DIRECTORY was replaced by QT_HOST_PATH,
the ensure syncqt code was changed to make it work properly with
both qtbase and qtsvg.

Here's a list of tools and their module associations:
qmake, moc, rcc, tracegen, qfloat16-tables, qlalr  -> CoreTools
qvkgen -> GuiTools
uic -> WidgetTools
dbus related tools -> DBusTools

Task-number: QTBUG-74134
Change-Id: Ie67d1e2f8de46102b48eca008f0b50caf4fbe3ed
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-02 07:30:30 +00:00
Alexandru Croitor
af8413af15 Fix header Depends file generation
The script used to write incorrect dependency headers due to not
clearing the qtdeps variable at each loop step.

Change-Id: Icf293be7cea596daa096ab19d390c0bb468a8654
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-03-11 14:12:06 +00:00
Tobias Hunger
8cea61e14d QtPostProcess: Fix generation of *Depends header files
Normalize Qt module names before trying to match them. Deduplicate the
names while at it.

Change-Id: I5821c34fe5904cf9e9b986ac3ae4af2b248466b7
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-11-01 11:48:55 +00:00
Simon Hausmann
e9c45bbddd Begin port of qtbase to CMake
Done-by: Alexandru Croitor <alexandru.croitor@qt.io>
Done-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
Done-by: Kevin Funk <kevin.funk@kdab.com>
Done-by: Mikhail Svetkin <mikhail.svetkin@qt.io>
Done-by: Simon Hausmann <simon.hausmann@qt.io>
Done-by: Tobias Hunger <tobias.hunger@qt.io>
Done-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Done-by: Volker Krause <volker.krause@kdab.com>
Change-Id: Ida4f8bd190f9a4849a1af7b5b7981337a5df5310
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Mikhail Svetkin <mikhail.svetkin@qt.io>
2018-11-01 11:48:46 +00:00