Commit Graph

159 Commits

Author SHA1 Message Date
Alexandru Croitor
24f12d0cef CMake: Build examples with qmake against a CMake built Qt
We want to remove the Qt .pro files for projects, except examples,
because examples are still meant to build with qmake.

To not lose coverage on examples built with qmake, add instructions that
will build the qtrepo/examples folder with qmake when the CMake
configuration has -DQT_BUILD_EXAMPLES=ON.

This means that such configurations will build examples both with CMake
and qmake.

Aside from making sure that our examples will still build with qmake, it
will gives us some some coverage that a CMake-built qmake works
correctly.

Implementation-wise, add new instructions files that can call qmake and
make depending on configuration and target type.

Pick-to: 6.0
Fixes: QTBUG-85986
Change-Id: Ie8f4cbcda03c94da2aef455e32f48dad41a4bdb0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-12-04 15:39:32 +01:00
Joerg Bornemann
0274daf307 CMake: Rename QtBuildInternalsAndroid.cmake to QtAndroidHelpers.cmake
...and include it in QtBuild.cmake.

Commit e8d8b1a5e4 added two different code paths to include
QtBuildInternalsAndroid.cmake.

This was needed, because:

In a top-level build, we must not include files that are not yet
installed.  We have the source tree available, and
"${QT_SOURCE_TREE}/cmake" is in CMAKE_MODULE_PATH.
We can use the "module syntax" of the include() command.

In a per-repository build, when building against an installed qtbase, we
must not include files of the source tree, because that's not guaranteed
to be available.  However, Qt6BuildInternalsConfig.cmake is installed,
and we can directly include QtBuildInternalsAndroid.cmake, which is
right next to it.

We can circumvent this whole issue by moving the Android-related
functions out of the Qt6BuildInternals package and including it in
QtBuild.cmake.

Pick-to: 6.0
Task-number: QTBUG-88718
Change-Id: I5192ba19bb77952505c20d053d7285f798d16ac5
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-24 21:51:34 +01:00
Tor Arne Vestbø
1777ddc234 cmake: Remove indirection via Startup target for EntryPoint
The EntryPoint interface target now contains all the logic
for what flags and optional static libraries to add when the
entrypoint is enabled.

The target property QT_NO_ENTRYPOINT can be used to disable
the entrypoint.

Change-Id: I9b14ff729366cd6307789c969ebd4b2ca19de77d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-12 18:43:43 +01:00
Alexandru Croitor
72aab8b487 CMake: Bump the minimum required CMake version to build Qt to 3.18
Add a new function that returns the minimum CMake version required to
build Qt. Pass that value to cmake_minimum_required() when building
qtbase and its standalone tests.

The minimum supported CMake version is read from qtbase/.cmake.conf
and its value should be updated when the need arises. It's the main
source of truth for all repos.

Provide a way to lower the minimum CMake version at configure time by
passing a value via QT_FORCE_MIN_CMAKE_VERSION.
This is not an officially supported way of building Qt. If the
specified version is lower than Qt's supported minimum, show a
warning.

Nevertheless the option is useful for testing how Qt builds with a
different minimum CMake version due to different policies being
enabled by default.

Issue warnings for CMake versions that are higher than the minimum
version but are known to cause issues when building Qt.

A counterpart change is needed in qt5 to ensure the minimum CMake
version is set at the proper time for top-level builds.

Ideally we would use the same 'check the CMake minimum version` code
in all our repositories, but that will cause lots of duplication because
we can't really find_package() the code and doing something like
include(../qtbase/foo.cmake) hardcodes assumptions about repo
locations.

So for now we don't bump the minimum version in child repo
cmake_minimum_required calls (qtsvg, qtdeclarative, etc).
Instead we record both the minimum supported version and the computed
minimum version (in case a different version was forced) in
QtBuildInternalsExtra.cmake.
Then we require qtbase's computed min version in
qt_build_repo_begin().

This won't set policies as cmake_minimum_required would, but at least
it propagates what minimum CMake version should be used for child
repos.

We might still have to bump the versions in child repos at some point.

Task-number: QTBUG-88086
Change-Id: Ida1c0d5d3e0fbb15d2aee9b68abab7a1648774b9
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-11-03 13:06:14 +01:00
Joerg Bornemann
2a29426e39 CMake: Fix argument passing for configure.bat / qt-configure-module.bat
Passing arguments with equal signs was broken for configure.bat and
qt-configure-module.bat. An argument FOO=BAR was split at = and written
as
    FOO
    BAR
to config.opt, breaking every attempt of assigning CMake variables.

We must not iterate over %* in batch files to avoid splitting arguments
at equal signs. Instead, pass %* unmodified to a CMake script that
writes config.opt.

Fixes: QTBUG-88019
Change-Id: I7c743a206961d1ed168f2313f864905f6b345b49
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-10-30 08:22:30 +01:00
Joerg Bornemann
4bf8f70bfe CMake: Let doc targets depend on doc tools in top-level build
For top-level builds it's desirable to have "ninja generate_docs" build
all tools needed to generate the documentation.

This is problematic since the doc-generating targets are created before
the doc tool targets. Thus, we must defer the dependency connection if
the doc tool target is not yet available.

This patch adds the functions qt_internal_defer_dependency and
qt_internal_add_deferred_dependencies.

Change-Id: Ica940b80882e67cb0e0943e95541f7f4d1885948
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-10-23 21:11:40 +02:00
Alexandru Croitor
acf9b3a68b CMake: Split QtBaseGlobalTargets.cmake into multiple files
And wrap the various behaviors into separate functions.

Change-Id: If940351af34e445de050f2b46301de7080b1555b
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-10-12 13:36:01 +02:00
Alexandru Croitor
1e1805ed36 CMake: Workaround iOS Xcode issue when configuring app
It appears that CMake's Xcode generator default behavior can't really
handle imported object libraries location, which Qt uses extensively
(all the qt_add_resource calls).

Specifically the project fails to configure with the following error
message:
The OBJECT library type may not be used for IMPORTED libraries under
Xcode with multiple architectures.

An issue was filed upstream at
https://gitlab.kitware.com/cmake/cmake/-/issues/21276

In the mean time, it looks like it's possible to work around the issue
by setting XCODE_EMIT_EFFECTIVE_PLATFORM_NAME global property to OFF.
This needs to be done before the very first project() call, so we do
it in the generated Qt toolchain file.

Note that the workaround only works if the CMake project is configured
with a single architecture given to CMAKE_OSX_ARCHITECTURES.
If multiple arches are given, it will fail with the same error
message.

Fixes: QTBUG-87198
Change-Id: I2556ae28b2fc2d9cfe464a5acf9c4fcbaf01b654
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-10-12 13:35:53 +02:00
Alexandru Croitor
c6a5cdcee6 CMake: Introduce Qt6::Startup target
Add an abstraction over Qt::WinMain (aka qtmain.lib) and
iOS's runtime linker entry point (_qt_main_wrapper).

The Core target will now link against the Startup target on all
platforms, instead of just WinMain on Windows.

The creation and linkage interface definition of the Startup target
is done at find_package(Qt6Core) time via the private call of
_qt_internal_setup_startup_target().

This will add automatic linkage of WinMain to executables marked with
the WIN32_EXECUTABLE property on Windows.
As well as the addition of the '-Wl,-e,_qt_main_wrapper' linker flag
when linking iOS executables.

Qt users can opt out of this behavior by either setting the
QT_NO_LINK_QTMAIN property or variable. This is in line with
Qt 5 behavior.

Task-number: QTBUG-87060
Change-Id: I7d5e9f1be0e402cf8e67e6f55bfd285f9e6b04f4
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-10-12 13:35:48 +02:00
Assam Boudjelthia
b9c85d6b0e CMake: build add flags for building QtAndroid.jar
Adds -source, -target, -Xlint:unchecked, -bootclasspath flags.

Setting default javac build source and target versions to 8.

Allow setting custom values for javac build versions via
-DQT_ANDROID_JAVAC_SOURCE, and -DQT_ANDROID_JAVAC_TARGET.

Task-number: QTBUG-86282
Change-Id: I98f4f193ac96016dc722d178594d7fd401202f68
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-09-16 20:55:16 +03:00
Alexandru Croitor
93fc3afe71 CMake: Check that QT_HOST_PATH is set when using the Qt toolchain
If a consumer wants to cross-compile a Qt app, they need to provide
the host Qt path location.

When building Qt in the CI we embed the Qt host path into the
generated CMake toolchain file for convenient building of other Qt
modules.

But once Qt is built, packaged and installed on a user's machine, most
likely the Qt host path will not be the same. In such a case, if the
user wants to use the convenience toolchain, they should explicitly
provide the Qt host path via the QT_HOST_PATH and
QT_HOST_PATH_CMAKE_DIR variables.

Show an error message if the values are not provided or don't exist
on the file system.

It's possible that in the future the Qt installer will patch the
toolchain file, or provide additional info, to point to the host
Qt installation so that the user doesn't have to do it manually.

But until that's done, a friendly error message is a good way to
inform the user what they should do.

Task-number: QTBUG-83999
Change-Id: I26291e3c47bb77375f8a5ce7b848c0382a660ca9
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-09-15 20:05:28 +02:00
Alexandru Croitor
67567b8e0d CMake: Conditionally set compiler in generated toolchain file
Public consumers of the qt toolchain file will most likely not have
their compilers in the same location where they were on the Qt build
machine.

Only set the compiler paths if none was set already, and the paths
actually exist.

This seems to become a trend in the generated toolchain file, and is
only a stop-gap solution.

A proper solution (two different toolchain files) may follow.

Task-number: QTBUG-83999
Change-Id: I7a603af447333a45c65b98e299ee109932d16517
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-09-15 20:05:25 +02:00
Alexandru Croitor
e957e9c28f CMake: Fix incorrect host path used in generated toolchain file
A previous change accidentally broke what we we set for
QT_HOST_PATH and QT_HOST_PATH_CMAKE_DIR.

The QT_HOST_PATH variable should use an absolute path as it was
done before.

The QT_HOST_PATH_CMAKE_DIR variable incorrectly used the value of
"${QT_HOST_PATH}" instead of "${QT_HOST_PATH_CMAKE_DIR}".

Fix both of these, and change the names of intermediate variables
to be consistent.

Amends a6a3b82ffb

Task-number: QTBUG-85240
Change-Id: I328a7edee12a13ff793684e8a0a4c2e03204eca4
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-09-15 15:55:47 +02:00
Joerg Bornemann
457cf10f7e CMake: Introduce qt-configure-module
Add a convenience script to configure a Qt module separately.
This script reads and interprets the qt_cmdline.cmake files of the
Qt module to be configured and eventually calls qt-cmake-private.

Example usage:
<install-prefix>/bin/qt-configure-module <source-root>/qtdeclarative
  -qml-network -- --trace-expand --trace-redirect=cmake.trace

Change-Id: I026f1a050cd3f4df740611c32ba8c03161bba7a3
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-09-11 00:41:10 +02:00
Alexandru Croitor
7b6d8261d8 CMake: Fix building of non-qtbase repos on Android with Windows host
The generated toolchain file embedded windows style paths for the
android sdk and chainloaded toolchain. This caused CMake does fail at
configure time while trying to evaluate backslashes as escape chars.

Also syncqt was searched for in libexec, which is not the right
directory on Windows. Use the host info package to get the location of
the 'libexec'.

Task-number: QTBUG-85399
Task-number: QTBUG-85911
Task-number: QTBUG-86053
Change-Id: I1b15ce84496d52c3fda2f65138e1eac43bc95c9e
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-09-09 18:52:54 +02:00
Alexandru Croitor
a6a3b82ffb CMake: Make generated Qt toolchain file a bit more relocatable
Rather than force setting the apple sysroot and Qt host paths, first
check if they are not already defined on the command line and if they
aren't, check that the paths with which Qt was configured exist.

The goal of the patch is to not set invalid paths, like when using a
Qt built in the CI, which will have a different host path / sysroot
compared to what a user has locally.

Task-number: QTBUG-85240
Change-Id: Ic37566b4fa845d8d1b4e4b5ba7fa4be769e99ca8
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-09-09 18:52:50 +02:00
Alessandro Portale
7fe7bd326f CMake: Fix cmake wrapper creation when cross-building
Change-Id: I363ee470973df89d16314671e3c33771040061f2
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-28 12:09:53 +00:00
Fabian Kosmale
b0e4545a4b CMake: Install QtHeadersClean.cmake
For prefix builds we need to install the file.
Amends db21bad936.

Change-Id: Ia8e859dc048cc4bd74eb95ed0d2adce9c6b11902
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
2020-08-27 22:13:40 +02:00
Alexandru Croitor
3b3029f959 CMake: Move QtPostProcess functions into QtPostProcessHelpers.cmake
The helpers can now be included manually in a project to call any
required function. There was a use case for that in qttools, which was
not possible because including QtPostProcess early would produce side
effects.

Task-number: QTBUG-86035
Change-Id: I05d5576bbac45d4b9e298b23aa2a33088d64968e
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-08-14 21:40:28 +02:00
Alexandru Croitor
44cce1a2ea CMake: Split QtBuild.cmake into smaller files
QtBuild.cmake is huge. Split it.

Move module, plugin, tools, executables and test related functions out
of QtBuild.cmake into separate files.
Do the same for many other things too.

An additional requirement is that all the new Helpers files only
define functions and macros.
No global variable definitions are allowed, nor execution of commands
with side effects.

Some notes:
qt_install_qml_files is removed because it's dead code.

Some functions still need to be figured out, because they are
interspersed and depend on various global state assignments.

Task-number: QTBUG-86035
Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-08-14 13:17:11 +02:00
Joerg Bornemann
fdd61b3a7b CMake: Introduce QtFeatureCommon.cmake
This file provides common feature-functionality is supposed to be
included by QtFeature.cmake and QtProcessConfigureArgs.cmake.

Change-Id: Ifb483c2a9c4014d240c2a4d6ff07b5c0ceee9c3a
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-08-13 19:31:59 +02:00
Alexandru Croitor
92ee9bd6b8 CMake: Properly handle CONFIG += thread aka Threads::Threads
mkspecs/features/qt.prf adds a dependency on the system threading
library if the Qt Core thread feature is enabled. Because qt.prf is
loaded by any public or internal Qt project, it's essentially a public
dependency for any Qt consumer.

To mimic that in CMake, we check if the thread feature is enabled, and
and set the Threads::Threads library as a dependency of Qt6::Platform,
which is a public target used by all Qt modules and plugins and Qt
consumers.

We also need to create a Qt6Dependencies.cmake file so we
find_package(Threads) every time find_package(Qt6) is called.

For the .prl files to be usable, we have to filter out some
CMake implementation specific directory separator tokens
'CMAKE_DIRECTORY_ID_SEP' aka '::@', which are added because we call
target_link_libraries() with a target created in a different scope
(I think).

As a result of this change, we shouldn't have to hardcode
Threads::Threads in other projects, because it's now a global public
dependency.

Task-number: QTBUG-85801
Task-number: QTBUG-85877
Change-Id: Ib5d662c43b28e63f7da49d3bd77d0ad751220b31
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-08-06 19:15:39 +02:00
Joerg Bornemann
6c07e9f3bb CMake: Fix build with custom INSTALL_INCLUDEDIR
The include directory in Qt's build directory is always named
"include", no matter what the value of INSTALL_INCLUDEDIR is. The main
reason is that the name "include" is hard-coded in syncqt.

The INSTALL_INCLUDEDIR variable must only affect the installation
location of headers.

Fixes: QTBUG-85893
Change-Id: I5367bc589cba129eb41817e2b58d470f730bb5ac
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-08-06 13:17:02 +02:00
Alexandru Croitor
9c0f448f5a CMake: Fix generated content of prl files (again)
Apply the same kind of transformations to the contents of the prl
files as we do for pri files. Mainly, transform system library paths
that are absolute, into link flags to make them relocatable across
systems.

Also change the Qt frameworks to be linked via the -framework flags
instead of via absolute paths.

Implementation notes

Move the common required functions for both QtFinishPrlFile and
QtGenerateLibPri into a common QtGenerateLibHelpers.cmake file.

Make sure it's listed as a dependency for the custom commands.
Also make sure to pass the necessary input values like possible
library prefixes and suffixes, as well as the link flag.

Task-number: QTBUG-85240
Task-number: QTBUG-85801
Change-Id: I36f24207f92a1d2ed3ed2d81bb96e4e62d927b6e
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-07-31 14:29:45 +02:00
Alexandru Croitor
b3b1e47378 CMake: Introduce qt_internal_add_app
This new function is meant to be used where load(qt_app) is used.

It delegates functionality to qt_add_executable, while handling
some additional behavior via a finalization function (mostly handling
of macOS Info.plist files and icons, as well as Windows icons and
resource files)

It uses a new PlatformAppInternal interface target.

Task-number: QTBUG-85757
Change-Id: I1a2d5851b137fcd4a6323e0e06fb154f91619800
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-07-31 12:55:32 +02:00
Alexandru Croitor
ec90f9013b CMake: Fix handling of CMAKE_FIND_ROOT_PATH and CMAKE_PREFIX_PATH
While trying to implement the 'host artifact reuse' Coin instructions
change, a bug surfaced where the qemu configurations didn't find
the host tools and instead tried to use the cross-compiled tools
while building qtbase, which failed due to not finding the
runtime linker (another unsolved issue).
Before the host artifact reuse change, the host tools were found
successfully.

The difference that caused the issue is that the target install prefix
was a direct subfolder of the host prefix.
host - /home/qt/work/qt/install
target - /home/qt/work/qt/install/target

Before the host reuse change the install prefixes were as follows
host - /home/qt/work/qt/install/host
target - /home/qt/work/qt/install/target

While looking for the Qt6CoreTools package, we temporarily set
CMAKE_FIND_ROOT_PATH and CMAKE_PREFIX_PATH to contain first
'/home/qt/work/qt/install' and then '/home/qt/work/qt/install/target'.
CMake then reroots the CMAKE_PREFIX_PATH values onto values in
CMAKE_FIND_ROOT_PATH, making an MxN list of prefixes to search.
Rerooting essentially means concatenating 2 paths, unless the
considered prefix is a subfolder of the root path.

What happened was that the first considered value was
'/home/qt/work/qt/install/home/qt/work/qt/install', a non-existent
location that gets discarded.

The second considered value was '/home/qt/work/qt/install/target.
The second value is the result of seeing that
'/home/qt/work/qt/install/target' is a subfolder of
'/home/qt/work/qt/install' and thus the root path is stripped.

All of this is done in cmFindPackageCommand::FindConfig() ->
cmFindCommon::RerootPaths.

The behavior above caused the target tools be found instead of the
host ones.

Before the host reuse change, both of the initial constructed prefixes
were discared due to them not existing, e.g.
'/home/qt/work/qt/install/target/home/qt/work/qt/install/target'
and '/home/qt/work/qt/install/host/home/qt/work/qt/install/host'

One of the later prefixes combined CMAKE_FIND_ROOT_PATH ==
'/home/qt/work/qt/install/host' + CMAKE_PREFIX_PATH == '/' resulting
in '/home/qt/work/qt/install/host/' and this accidentally found the
host tools package.

We actually stumbled upon this issue a while ago when implementing Qt
5.14 Android CMake support in 52c799ed44
That commit message mentions the fix is to add a "lib/cmake"
suffix to the PATHS option of find_package().
This would cause the subfolder => strip root behavior mentioned
above.

So finally the fix.

First, make sure not to append QT_HOST_PATH in the toolchain file,
there shouldn't be any need to do that, give that we temporarily set
it when looking for Tools packages.

Second, recreate the subdir scenario in the Qt toolchain file by
setting CMAKE_FIND_ROOT_PATH to the current (relocated) install
prefix as usual, but also setting CMAKE_PREFIX_PATH to a new value
poining to the CMake directory.
Aka '/home/alex/qt' and '/home/alex/qt/lib/cmake'.

Third, when a QT_HOST_PATH is given, save 2 paths in the generated Qt
toolchain: QT_HOST_PATH and QT_HOST_PATH_CMAKE_DIR. There are the host
equivalents of the target ones above. Use these values when looking
for host tools in Qt6CoreModuleDependencies.cmake, again facilitaing
the subdir behavior.
Note these are currently absolute paths and are not relocatable.
We'll have to figure out if it's even possible to make the host path
relocatable.

Finally as a cleanup, look for the Qt6HostInfo package in QtSetup
strictly in the given QT_HOST_PATH, so CMake doesn't accidentally find
a system Qt package.

Change-Id: Iefbcfbbcedd35f1c33417ab7e9f44eaf35ff6337
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-07-24 17:33:21 +02:00
Jonas Karlsson
a99bc30e1e Add OS-specific prelude to qt-cmake-standalone-test
This makes sure the executable is run as a shell script
with the proper interpreter on Unix systems.
Otherwise it will fail in some shells, like fish.

On windows, it prevents all commands in the batch file
from displaying on the screen.

Change-Id: If554262f172b035b9661b3e2ff26a96789fa707b
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-07-15 15:13:05 +00:00
Joerg Bornemann
84dcbe4d5d CMake: Fix qt-cmake-standalone-test when CMAKE_STAGING_PREFIX is set
The qt-cmake-standalone-test script is kind of a "host tool" and
contained paths to CMAKE_INSTALL_PREFIX, which is wrong if
CMAKE_STAGING_PREFIX points to somewhere else.

Fixes: QTBUG-85336
Change-Id: I4828dc6868d55cfc60f3ad2199185230d5cc9028
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-07-09 08:55:32 +02:00
Joerg Bornemann
943340222e CMake: Generate qdevice.pri when cross-building
This adds the CMake equivalent to the classical -device-option key=value
configure argument:
-DQT_QMAKE_DEVICE_OPTIONS=key1=value1[;keyN=valueN]
The keys and values get dumped verbatim into qdevice.pri.

This patch also ports the machineTuple configure test. Its result is
written into qdevice.pri as value for the GCC_MACHINE_DUMP variable.

Change-Id: I29f2323fd87639fafaed99ec7446c7ee75504705
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-06-29 12:47:59 +02:00
Joerg Bornemann
d7fd684861 CMake: Support cross-compilation with qmake
When cross-compiling, we now create a target_qt.conf file that's to be
used with the host Qt's qmake. With "qmake -qtconf .../target_qt.conf"
projects can be cross-built against the cross-built Qt.

We also create wrapper scripts for the host qmake to save the user from
passing the -qtconf argument.

Fixes: QTBUG-82581
Change-Id: Ib5866e7e820369efea9eb3171e3e3e3ca5c0c3c1
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-06-29 12:47:34 +02:00
Alexandru Croitor
e2b2cd9397 CMake: Improve automatic compiler embedding into the Qt toolchain
Embedding the initial CMAKE_CXX_COMPILER into qt.toolchain.cmake
breaks Boot2Qt builds, because the CXX environment variable is not
used anymore when building qtsvg or other projects.

Disable automatic embedding when cross-compiling, while keeping it
enabled for non-cross-compiling cases (to keep Windows and
and ICC configurations working).

Allow opting in or out of the embedding in case if the default is
wrong, via QT_EMBED_TOOLCHAIN_COMPILER.

Task-number: QTBUG-85067
Change-Id: I1d8f9f580bc379b77c34eefb5728bb49f93cc81a
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-06-18 19:13:11 +02:00
Joerg Bornemann
44282b450b CMake: Do not generate qtbase/bin/qt.conf
In a qmake build this file serves the purpose of setting the right
prefixes for the build directory's qmake binary. This can be used to
build Qt repositories other than qtbase, esp. in a top-level build.

In the CMake build, we don't have qmake top-level builds, and we do not
support building Qt repositories with the build directory's qmake binary
(exception: non-prefix build).

To build a Qt module or user project with qmake, the installed qmake
must be used.

This fixes qmake for non-prefix top-level CMake builds.

Change-Id: Ibd10c36e8359225553d782d0c8117760db9f3370
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-06-11 19:41:32 +02:00
Joerg Bornemann
2a767ab4bb CMake: Fix libraries in qt_lib_XXX_private.pri files for NMC
qmake_use.prf understands the _DEBUG and _RELEASE suffixes for
QMAKE_LIBS_XXX entries. The CMake configuration "Debug" is considered
for the _DEBUG entries, "Release" and "RelWithDebInfo" for _RELEASE.

The qt_lib_XXX_private.pri files are now generated in multiple steps:
1. The QT_LIBS_XXX information is generated per $<CONFIG> and written to
   .cmake files.
2. A preliminary qt_lib_XXX_private.pri file is generated, containing
   only configuration-independent data.
3. A custom command runs the QtGenerateLibPri.cmake script that combines
   the files from step 1 and 2 into the final qt_lib_XXX_private.pri
   file.

The same is done for mkspecs/qmodule.pri.

To be able to trigger custom commands from header modules, which are
interface libraries, we introduce one XXX_timestamp ALL target per
header module that creates a timestamp file. To that XXX_timestamp
target we add the pri file generation target as dependency.

Fixes: QTBUG-84348
Change-Id: I610f279e37feeb7eceb9ef20b3ddfecff8cfbf81
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-06-09 21:04:26 +02:00
Joerg Bornemann
ea9b4b5982 CMake: Do not create Qt6ToolsConfig[Version].cmake files
They are not necessary, and they conflict with what qttools generates.

Fixes: QTBUG-82133
Change-Id: I4a1273d694626345b32b45c653dd31d3b78621eb
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-06-08 14:49:53 +02:00
Alexandru Croitor
dc26b30acd CMake: Protect against Qt toolchain file recursive inclusion
Three different people have encountered the issue that calling
calling qt-cmake on a project prints 1000 inclusion lines of the same
qt toolchain file, and then CMake bails out saying can't find the
CMAKE_MAKE_PROGRAM Ninja.

This happened because people accidentally called qt-cmake to configure
qtbase (instead of just cmake), which created a toolchain file that
chainloads itself recursively.

Error out when configuring qtbase, and when using the generated
toolchain file in the case when it would try to include itself.

The solution is to remove the qtbase CMakeCache.txt file, and
configure qtbase again, so it generates a proper qt.toolchain.cmake
file.

If somebody feels enthusiastic, they can move the check into the
qt-cmake and qt-cmake-private shell scripts, and error out before the
qtbase/CMakeCache.txt is polluted with the wrong toolchain file.
That is left for people that feel more comfortable with bash and batch
scripting.

Change-Id: If518c94791fe7c30731e6e462e347f26a5213c64
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-06-04 23:21:27 +02:00
Alexandru Croitor
37b132cd4e CMake: Fix standalone tests to work properly on reconfiguration
And also fix qt-cmake-standalone-test to work for prefix builds.

The gist of it is that we have to protect tests not to be installed
into the Qt install prefix, but we also have to make sure that the
CMAKE_INSTALL_PREFIX is not changed globally (via cache value),
so that reconfiguration still works.

This took way too long to figure out.

Amends d6272d774c

Fixes: QTBUG-84346
Change-Id: I18c29574c9957fe05b86f701c8c14ec07e0f045b
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-06-04 22:28:06 +02:00
Joerg Bornemann
759da6742a CMake: Generate information about 3rdparty libs in module .pri files
For modules that are not yet ported to CMake and that use
   QMAKE_USE += libfoo
we need to provide the information about libfoo in the qt_lib_XXX.pri
files.

Also, we now generate qt_ext_XXX.pri files for bundled 3rdparty libs.

Task-number: QTBUG-75666
Change-Id: I9e4b057a197554ecb37c294c0bf09e2a2b3aa053
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-05-19 13:26:53 +02:00
Alexandru Croitor
b3e01d608e CMake: Use custom install script to support Ninja Multi-Config builds
Calling cmake --install . only installs a single configuration.

To install both debug and release artifacts, the install
invocation needs to be done for each configuration.

To keep the Coin instruction code simpler, delegate the looping
over configurations to a custom CMake script, and use it in the
Coin instructions.

Replace all cmake --install calls in the instructions with calls
to either call_host_install.yaml or call_target_install.yaml.

The path to the script depends on whether we are building
qtbase or another module. In the former case the script should
be called from the build dir, otherwise from the install dir.

The other distinction is whether the host or target env prefix
needs to be added.

Task-number: QTBUG-80900
Change-Id: Ied4bf739e2b1a2307f22fc79c1cfad746c8cbc44
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-05-19 10:16:11 +02:00
Alexandru Croitor
0cdcbb40a1 CMake: Enable default usage of utf8 sources for Qt consumers
And enable the same default when building Qt itself (it's implicit).

Allow opting out on a target-by-target basis, by using the public
qt_disable_utf8_sources() API call.

Change-Id: Ifc19a744d57b96b1c74a6926a0c6628c2a820464
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-05-15 11:47:09 +02:00
Alexandru Croitor
bf315c5526 CMake: Make build system of installed Qt more relocatable
Aka handle CMAKE_INSTALL_PREFIX in a more relocatable way.

The following story inspired this change.

If a user wants to build a Qt repo into a different install prefix
than the usual Qt one, this will fail configuration because we
look for various things like syncqt, qdoc, etc relative to
CMAKE_INSTALL_PREFIX, which will now point to a different location
where none of the above tools are located.

The intent for such a use case is to support building Qt packages with
Conan, which sets a random install prefix when configuring a repo.

The idea is to derive the qt prefix dynamically from the
QtBuildInternals package location. Essentially it's a reverse relative
path from the QtBuildInternalsConfig.cmake file to the install prefix
that was specified when initially configuring qtbase.

Once the dynamic prefix is computed (so we know where the possibly
relocated Qt is), we can find tools like syncqt and qdoc.

This is an initial attempt to support a use case like that.

More design work will probably needed in case if tools / libs need to
be found in a location different than the Qt install prefix (so
support for multiple install prefixes / search paths).

An example of such a case would be when building qtdeclarative and
qtquickcontrols2 as Conan packages in one go. Most likely the
qmltyperegistrar tool will be located in the random install prefix
set by Conan, so building qtquickcontrols2 might fail due to not
finding the tool in the original Qt install prefix.

As to the implementation details, the change does the following:
- Dynamically computes and sets the
  QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX variable when
  find_package()'ing QtBuildInternals. It's an absolute path
  pointing to where the relocated Qt is.

- When building qtbase this variable is not yet available (due
  to QtBuildInternalsExtra not existing), in that case we set
  the variable to the absolute path of CMAKE_INSTALL_PREFIX
  (but only for the initial qtbase configuration).

- Remove QT_BUILD_INTERNALS_ORIGINAL_INSTALL_PREFIX which was used
  for standalone tests purposes. It's not needed now that we compute
  the location of the Qt prefix dynamically.

- The Unixy qt-cmake and qt-cmake-private shell scripts now
  use a relative path to find the toolchain file we created.

- The toolchain file also dynamically computes the location of the Qt
  packages, and adds them to CMAKE_PREFIX_PATH.

- A lot of existing CMAKE_INSTALL_PREFIX uses are replaced with
  QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX. This includes finding
  tool locations, mkspecs dir, path environment setup for tools, etc.

- Some places still use CMAKE_PREFIX_PATH in the following cases
  - When determining paths while configuring qtbase (valid cases)
  - When I wasn't sure what the behavior should be, so I left them
    as-is (an example is documentation generation, do we want to
    install it into the random Conan prefix, or into the main prefix?
    Currently it installs in the random prefix).

Note that relocating a Qt installation does not work for non-prefix /
non-installed builds, due to hardcoded paths to include directories
and libraries in generated FooTargets.cmake files.

Task-number: QTBUG-83999
Change-Id: I87d6558729db93121b1715771034b03ce3295923
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-05-07 15:41:16 +02:00
Alexandru Croitor
c70dcffbdb CMake: Replace hardcoded include dirs for the global qtbase targets
Change-Id: I22a120a0cb8ca690d224b1301b85e704364fbce0
Reviewed-by: Simon Hausmann <hausmann@gmail.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2020-05-07 15:41:11 +02:00
Leander Beernaert
dc4e5af752 CMake: Move Resources API into Qt6CoreMacros
Move QT6_ADD_RESOURCE to Qt6CoreMacros in order to avoid the extra
config file step.

Change-Id: Ib445ca35c648cf344ee8795de8bdddc0f0758972
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-20 13:38:53 +02:00
Alexandru Croitor
59756b7183 CMake: Generate qmake pri information for building with qmake
Implemented some necessary functionality to generate correct .pri
information, so that qmake can build modules.

Task-number: QTBUG-75666
Change-Id: I63281adfef3d01385928b1d8c4be0b32ac97c4d7
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-17 20:42:18 +02:00
Joerg Bornemann
bfcf36d459 CMake: Generate qmake .prl files
This commit also adds a qt_finalize_module function that is called for
every Qt module after all link dependencies have been added.

Change-Id: I489d188d05e368208a8a62828bb12fb395df54bc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-17 20:42:10 +02:00
Alexandru Croitor
67af991c59 CMake: Make sure to install Qt3rdPartyLibraryConfig.cmake.in
Repos like qtshadertools need it when configuring their own
bundled libraries.

Amends 572c03eb7a

Change-Id: I540e99d5bd2938299a10220a1a5e0d97091077b3
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-23 16:42:48 +01:00
Alexandru Croitor
e510a4e327 CMake: Introduce qt_configure_file
It has the same kind of signature as file(GENERATE) but
creates the files at configure time rather than generation time.

CMake provides a few ways to generate files
file(WRITE) -> always overrides content
configure_file() -> only overrides if content changes, creates file
                    at configure time, can only take a file as input
file(GENERATE)   -> only overrides if content changes, creats file
                    at generation time, can take a string or file
                    as input

Because dealing with an input file is a hassle (need to create one,
make sure it's installed, make sure it's used correctly in the
various build types like super-build, non-prefix-build, etc)
people tend to use file(GENERATE) instead, which can take a string
argument, and is thus easier to use.

Unfortunately that introduces subtle bugs because the
file is created at generation time, but there are existence
checks which are done at configuration time.

Thus qt_configure_file allows creation of files at configure time,
without having to provide an input file. Underneath it uses
configure_file(). Once CMake 3.18 is released, the implementation
can be switched to use file(CONFIGURE).

Change-Id: Ic8f8d88541ef0b25d01af143352c8c9ba390ad5f
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-23 09:54:56 +01:00
Alexandru Croitor
1f442c684f CMake: Provide script to configure and build one or more tests
Before this patch there were a few ways to build tests
- Configure all tests as part of the repo build
- Configure all tests as part of the repo build, but don't build
  tests by default (-DQT_NO_MAKE_TESTS=ON)
- Configure all tests as a standalone project in a separate build
  dir using -QT_BUILD_STANDALONE_TESTS=ON

All of the above incur some time overhead due to the necessity
of configuring all tests.
Sometimes you just want to build ONE test (or a few).

To facilitate that use case, a new shell script called
bin/qt-cmake-standalone-test(.bat) can now be used to configure
and build one or more tests.

The script takes one single argument pointing to the desired test
project path and configures a generic template project that sets up
all the necessary Qt CMake private API, afterwards calling
add_subdirectory on the passed in project.

Example
$ path/to/qt/bin/qt-cmake-standalone-test ./tests/auto/gui/image/qicon

or

$ path/to/qt/bin/qt-cmake-standalone-test ./tests/auto/gui/image

After that, simply run 'ninja && ctest' to build and run the test(s).

This is the CMake equivalent of calling qmake on a test .pro file
(or on a tests SUBDIRS .pro file)

There are 3 details worth mentioning.

Due to the add_subdirectory call, the built artifacts will not
be in the top-level build dir, but rather in a nested build_dir.

The script currently can't handle more than one argument
(the path to the project), so you can't pass additional
-DFoo=bar arguments.

If a test uses a 3rd party library (like Threads::Threads)
which was not a public dependency for any of the Qt modules,
configuration will fail saying that the target was not found.
Perhaps we should consider recording these packages when
generating the StandaloneConfig.cmake files.

Change-Id: Icde6ecb839341d34f341d9a19402c91196ed5aa0
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-23 09:54:48 +01:00
Tor Arne Vestbø
77885f8402 cmake: Remove APPLE prefix from platform names
None of the other platforms have it.

Change-Id: Ib448c2c03ba03f711b507ef391977c0e6aa7c192
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-16 17:57:56 +01:00
Tor Arne Vestbø
db745fdd2d cmake: Fix naming when referring to Apple macOS
Change-Id: Iafb5e448d0d65d42f788464fc600594a5666f9af
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-16 17:57:52 +01:00
Tor Arne Vestbø
3a2fa3fec5 cmake: Add default Info.plist for macOS with some important keys
The default Info.plist shipped with CMake lacks an NSPrincipalClass
entry, which is crucial for making macOS apps run in full resolution
on retina screens.

We make sure the file is only picked up on macOS, not iOS and friends,
since those platforms require another principal class. If needed we can
extract the value out as a CMake variable and use the same file for all
Apple platforms. Doing so would assume all keys are single-platform
only, so if that's not the case we need platform-specific files.

We should probably extract the package type out as a variable too,
so that the file can be used for both apps, plugins, and frameworks,
but doing so requires setting up that variable somewhere based on
the target type, which CMake doesn't allow in an easy way.

The file itself is based on the file CMake ships, combined with
keys inherited from Qt's existing plist templates for qmake, and
adjusted to match what Xcode generates by default these days.

Change-Id: I3f5109e5fff63cdbd109a99d4008948d4bd2102b
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-13 15:23:56 +01:00
Alexandru Croitor
a1867333d4 CMake: Install the QtBuildInternalsAndroid.cmake fille
It's needed when building qtdeclarative.

Needs to be copy_or_install to support non-prefix builds as well.

Change-Id: Ied59f6a1f8403be3721a0ad46f5a3b2f569028ca
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-12 11:41:42 +01:00
Alexandru Croitor
5804473578 CMake: Propagate minimum required C++ standard to consumers of Qt
Aka the version of C++ that needs to be supported when compiling
applications that use Qt headers (C++17 at the moment).

Change-Id: I64dec297e8329f31b1d9864f216a95782049ed06
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-12 11:41:32 +01:00
Joerg Bornemann
d0911d0a92 CMake: Port the 'separate_debug_info' feature
For this, we have to uninline the separate_debug_info configure test,
because supporting the conversion of this in configurejson2cmake is not
worth the hassle.

Separate debug information can be turned on for a target by calling the
function qt_enable_separate_debug_info. For Qt's shared libraries and
tools separate debug information is generated if the
'separate_debug_info' feature is manually turned on.

Change-Id: Ic2ffc15efef3794dc0aa42f3d853ef6d651a751c
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-06 13:38:37 +01:00
Alexandru Croitor
4f7cc72298 CMake: Handle conditions in third party find modules correctly
Previously the FindWrap modules checked for hardcoded features
when deciding whether to use a bundled library or not. This proved
not to work correctly because features were not available when
the find modules were processed.

Introduce a new CMake API call that needs to be manually called
after an add_subdirectory call which declares a bundled library.

The call will check for the existence of the bundled target, and will
then set a cache variable QT_USE_BUNDLED_Bundled<TargetName>.

The same variable is written into a FindWrapFooConfigExtra.cmake file
which will be loaded by the appropriate FindWrap module. The module
can that use that variable to decided whether to link against the
bundled library or the system library.

Change-Id: I75e9a4f4e14d88d4490916a79ad12f1ce57891e0
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-05 16:08:14 +01:00
Alexandru Croitor
26059d1b9b CMake: Allow building bundled 3rd party libraries in qtbase
A few things are needed to accomplish that:

- the python scripts do not ignore certain system_foo features anymore
  (it is a hardcoded list for now just to be safe)

- configurejson2cmake now outputs
  qt_find_package(WrapSystemFoo) calls for bundled libraries
  (see below)

- the harfbuzz .pro file is modified to accommodate pro2cmake
  not being able to correctly parse some conditional scopes

- the freetype .pro file is modified to make sure linking of the
  library succeeds without duplicate symbol errors, which qmake
  doesn't encounter due to magical exclusion of cpp files that are
  included in other cpp files (presumably for include moc_foo.cpp
  support)

- feature evaluation for Core, Gui, Network now happens in the
  qtbase/src directory, so that bundled libraries can be conditionally
  built

- for each bundled library there are now two FindWrap scripts:
  - FindWrapSystemFoo which finds an installed library in the system
  - FindWrapFoo which either uses the system installed library or
    the built bundled one depending on a condition

- projects that intend to use bundled libraries need to link against
  WrapFoo::WrapFoo instead of WrapSystemFoo::WrapSystemFoo targets
  (this is handled by pro2cmake).
  Unfortunately manually added qt_find_package(WrapFoo) calls might
  still be needed as is the case for WrapFreetype and others.

- a new cmake/QtFindWrapHelper.cmake file is added that provides
  a macro to simplify creation of WrapFoo targets that link against
  a bundled or system library. The implementation is fairly ugly
  due to CMake macro constraints, but it was deemed better than
  copy-pasting a bunch of almost identical code across all
  FindWrapFoo.cmake files.

- a qtzlib header-only module is now created when using bundled
  zlib, to provide public syncqt created headers for consumers
  that need them. These are projects that have
  'QT_PRIVATE += zlib-private' in their .pro files
  (e.g. qtimageformats, qtlocation, qt3d, etc.)
  This is unfortunately needed due to QtNetwork using zlib
  types in its private C++ API.

The change includes support for building the following bundled
libraries:
- zlib
- libpng
- libjpeg
- Freetype
- Harfbuzz-ng
- PCRE2

The following 3rd party libraries are still using an old
implementation within the CMake build system, and should be migrated
to the new one in the near future:
- double-conversion
- Old harfbuzz

The are a few libraries that are not yet ported:
- system-sqlite
- systemxcb
- maybe others

Among other things, this change allows building qtbase on Windows
without requiring vcpkg.

Task-number: QTBUG-82167
Change-Id: I35ecea0d832f66c1943c82e618de4a51440971a5
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
2020-02-25 15:43:16 +01:00
Alexandru Croitor
eaa29378b9 CMake: Fix c++ standard config tests with MSVC
Need to pass additional -Zc:__cplusplus flag when using
MSVC, so that the __cplusplus define has correct values.

Additionally make the option be propagated to consumers of Qt
via the public Platform target, which QtCore links against.

Change-Id: Ie1283c25334b93f993529beb7fb32bdb001627f5
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
2020-02-18 14:44:57 +01:00
Christophe Giboudeaux
4954adea39 Don't hardcode the include directory name
Hardcoding "lib" caused build issues and wrong
INTERFACE_INCLUDE_DIRECTORIES paths in generated CMake configuration
files if INSTALL_INCLUDEDIR pointed to a different location.

Contributes to QTBUG-81289

Change-Id: I3276ecbb4bf5df1c0b4c496c0287b4a69586d683
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-01-31 12:41:47 +00:00
Christophe Giboudeaux
7f6eb6ead6 Don't hardcode the binary directory name
INSTALL_BINDIR may point to a different location than "bin". In order
to avoid errors when trying to install qtbase, "bin" is replaced with
"INSTALL_BINDIR" where necessary.

Contributes to QTBUG-81289

Change-Id: I1d4f9fb2617547c9b0e44d6690caebb2b6768e2f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-01-31 10:09:47 +00:00
Christophe Giboudeaux
5fc2882ac5 Add INSTALL_MKSPECSDIR to the install locations
Linux distributions may want to install mkspecs files into a
different subdir in order to make Qt6 co-installable with
older versions.

Contributes to QTBUG-81289

Change-Id: Ie4a64370d742948d5ca4f2eaed6ea550d2676707
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Christophe Giboudeaux <christophe@krop.fr>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-01-31 10:09:39 +00:00
Alexandru Croitor
34a112e383 Fix CMAKE_BUILD_TYPE to be a cache variable in QtBuildInternalsExtra
Rather than pass the build type in the wrapper, make sure the build
type is a cache var, so it gets picked up when building other repos.

This reverts commit f72ca4cf85.

Change-Id: I5d91ab66249b6c40c5e548b0eec0e467ba0f2ebc
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-01-29 11:56:27 +00:00
Leander Beernaert
f72ca4cf85 Forward CMAKE_BUILD_TYPE, if available, in qt-cmake
Change-Id: I299e16cfc084b3fc009e806902e26121ebdd454b
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-01-29 09:39:32 +00:00
Alexandru Croitor
c9bea1ad62 Add initial support for CMake "Ninja Multi-Config" generator
This allows doing debug_and_release builds with Ninja on all
platforms.
The "Ninja Multi-Config generator" is available starting with CMake
3.17.

Desired configurations can be set via CMAKE_CONFIGURATION_TYPES.
Possible values: "Release, Debug, RelWithDebInfo, MinRelSize".
For example -DCMAKE_CONFIGURATION_TYPES="Release;Debug".

The first configuration is the 'default' configuration which is
built when calling ninja with no arguments.

To build all targets of a certain configuration use "ninja all:Release"
or "ninja all:Debug".

To build all targets in all configurations use "ninja all:all".

Note that the first configuration influences which configuration of
tools will be used when building the libraries for all configurations.
In simple terms, when configured with
-DCMAKE_CONFIGURATION_TYPES="Release;Debug" the release version of moc
is used by AUTOMOC.
When configured with -DCMAKE_CONFIGURATION_TYPES="Debug;Release"
the debug version of moc is used by AUTOMOC.

Framework builds and Ninja Multi-Config don't currently work together
due to multiple bugs in CMake, which ends up generating an invalid ninja
file with duplicate rules. There are also issues with placement of the
debug artifacts.

This will be handled in a follow up patch after CMake is fixed.

Task-number: QTBUG-76899
Change-Id: If224adc0b71b7d1d6606738101536146aa866cd7
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-01-27 11:47:57 +00:00
Jean-Michaël Celerier
ea81b69cde Implement qtbase fixes for superbuilds
Change-Id: I0d3445cf0740e3925fa9342dac4d07892518afe5
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-01-08 10:42:21 +00:00
Alexandru Croitor
a64acbea9c Make sure to install QtModuleToolsVersionlessTargets.cmake.in
Amends 04d895681a

Task-number: QTBUG-74137
Task-number: QTBUG-80477
Task-number: QTBUG-75984
Change-Id: I617c2abf421bc1378545e5a36fd44533131ef471
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-12-06 15:11:33 +00:00
Alexandru Croitor
55a15a1c1b Add initial support for cross-building to iOS
Tested locally with the following configurations:
- iOS device builds (arm64)
- iOS simulator builds (x86_64)
- iOS simulator_and_device builds (fat arm64 and x86_64 archives)

All iOS builds currently require a custom vcpkg fork which contains
fixes for building the required 3rd party libraries.

qtsvg, qtdeclarative, qtgraphicaleffects and qtquickcontrols2
have also been tested to build successfully.

simulator_and_device builds are also supported, but require an umerged
patch in upstream CMake as well as further patches to vcpkg.

Task-number: QTBUG-75576
Change-Id: Icd29913fbbd52a60e07ea5253fd9c7af7f8ce44c
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
2019-12-03 13:35:59 +00:00
Alexandru Croitor
04e86bab13 Make sure to install QtStandaloneTestsConfig.cmake.in
Otherwise leaf modules fail to configure.
Amends de3a806def

Change-Id: Ie304c0021ada9911044abdb7e460b8da8e986a8f
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-11-12 10:35:22 +00:00
Tobias Hunger
1c2db89027 Write out a module description file
Write out a file with some JSON data to describe a module.

This file contains information on how that module has been built.

Change-Id: I8a604692663cbb7b76b96b97124130e30b822e4b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-10-21 11:28:55 +00:00
Simon Hausmann
0ef8753774 Prospective fix for linking problems of qtdeclarative in the CI
In the ICC configuration we can't build the qtbase libraries with ICC
and qtdeclarative with gcc, mixing won't work well. On Windows we've
covered this compiler mixing scenario using our toolchain file, but the
ICC case makes it clear that we have to be consistent about caching the
compiler in the toolchain file across platforms.

Change-Id: Iad2005ab00655f902e5f5cea2f0563d790d8aa93
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-09-03 08:22:03 +00:00
Leander Beernaert
7a1853dbe2 Extract add_qt_resource into reusable components
This patch moves all of the underlying code for add_qt_resource
into a common reusable snippet for both the Qt build and user projects.

For users, the new API is available under QT5_ADD_RESOURCES. If
outfiles is a CMAKE target we will use the new API, otherwise
we will fall back to the old behavior.

This patch also adds EXTRA_CMAKE_FILES and EXTRA_CMAKE_INCLUDES to
add_qt_module so that module specific cmake files can be installed
and loaded by the module's config.cmake.

The code will be installed under CMAKE_BINARY_DIR/Qt{}CoreResource.cmake
and is injected into Qt{}Core_Config.cmake via the extra cmake includes
passed into add_qt_module.

To make sure it still works with QtBuild, we do the actual generation
of the file from QtBaseGlobalTargets and include the generated file
there as well.

Change-Id: I85fefaa11dde01a6790d23c62d6a64cd157e2617
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-08-22 09:47:01 +00:00
Leander Beernaert
3cb9ee3a5b Fix Android build for other Qt modules
Install missing QtBuildInternalsAndroid to installation path.

Change-Id: I6141ff72b57a6445f1718bc17d64a7ed59a91620
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-08-16 15:58:38 +00:00
Leander Beernaert
551e79f28a Install QtPlugins.cmake.in
Added rule to install missing QtPlugins.cmake.in.

Change-Id: I485dadd56ee2dd435406d97399b32dc6390cebff
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-08-12 10:01:58 +00:00
Alexandru Croitor
38640f745e Fix toolchain path when doing non-prefix builds
Previously the cmake install prefix was added twice during a non-prefix
build, which evaluated to an incorrect path.

Set another absolute dir variable, and use that instead.

Change-Id: I73099510dadc8f401d5a763f21840c9671686c10
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Qt CMake Build Bot
2019-07-03 16:09:55 +00:00
Leander Beernaert
ccc581c9fd Add auto detection routines for android
Add QtAutoDectect cmake which has routines to handle the vcpkg detection
as well as set up some android configuration parameters. The latter will
contribute towards keeping the cmake configuration commands shorter when
targeting android.

Change-Id: I721291c8dce39b5c298565a46867ddcab2df90e8
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-27 13:45:58 +00:00
Simon Hausmann
6fe92d5aed Prospective fix for using qt-cmake when %PATH% changes and using Ninja
Mixing compilers won't work well on Windows, so if qtbase is built using
cl.exe and Ninja and then later cmake is called on another module and
gcc is found in %PATH%, then cmake will prefer that. Let's avoid that.

Change-Id: I8294482939efa6a16e0a4df8df3aeef8243c3657
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-26 12:41:39 +00:00
Simon Hausmann
1a8799bfdd Fix osx deployment target and sysroot propagation in the qt toolchain
We need to save them in the toolchain file, otherwise we can't compile
anything :)

Change-Id: Ic5c53524fa4aa05d0b3229c2905dff92ca437ec1
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CMake Build Bot
2019-06-26 11:38:01 +00:00
Simon Hausmann
ffec6c7180 Add windows batch file for convenient cmake invocation with Qt toolchain file
Similar to the shell script, this makes it easier to invoke cmake by
just extending your PATH.

Change-Id: I1f83e93c507032f6ecf4838c11d62f49f4d93ed6
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-25 14:12:59 +00:00
Simon Hausmann
a6576d97ca Fix vcpkg default target triplet setting in the qt toolchain file
Due to scoping this variable needs to be written into the cache.

Change-Id: I2704fe9ac138210571e0b7acada5eb5c65e265af
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-24 15:08:05 +00:00
Simon Hausmann
2895f3ffaa Generate a toolchain and convenience cmake wrapper
This gets us a step into the direction of convenience that qmake
offered:

    * QtBase is configured with a long command line (especially when
      cross-compiling)
    * Afterwards application developers (or other module builds) can
      just use qmake && make

By generating a toolchain file we can capture vcpkg and toolchain
chain-loading and a shell script can take care of providing the prefix
path.

Change-Id: Ided81f5432cab862306f2bea86cfe8e56adf71b0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-24 14:23:11 +00:00
Alexandru Croitor
1a2a3b72bf Add PlatformCommonInternal target and QT_NO_DEBUG definition
All the other PlatformModuleInternal, PlatformPluginInternal,
PlatformToolInternal target will depend on the common one.

Also add the QT_NO_DEBUG definition when the build type is not Debug.
This fixes the lookup of the Qt platform plugin on macOS, which
uses a "_debug" prefix in the plugin name depending on if the
QT_NO_DEBUG definition is present or not.
This is the same as it is done in mkspecs/features/qt.prf.

Change-Id: I82cf461d44b8a3b3c5dc2b2d9f25baa246fc1e4b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-24 13:30:14 +00:00
Alexandru Croitor
fe3bd212fc Merge remote-tracking branch 'origin/wip/qt6' into wip/cmake
This changes many different CMake places to mention Qt6 instead of
Qt5.

Note that some old qt5 cmake config files in corelib are probably not
needed anymore, but I still renamed and kept them for now.

Change-Id: Ie69e81540386a5af153f76c0242e18d48211bec4
2019-06-14 16:31:09 +02:00
Alexandru Croitor
72066a3a58 Revert "cmake: Make CMake superbuilds work"
Builds fail on Windows, due to splitting on ':' on absolute file paths,
when handling syncqt injections.

Revert for now to get qt6 merge in faster.

This reverts commit 7559d508d1.

Change-Id: If139a8a1eb4ae7ccc8d7b835b12e83b03176e28b
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Qt CMake Build Bot
2019-06-14 14:27:24 +00:00
Kevin Funk
7559d508d1 cmake: Make CMake superbuilds work
In case of a CMake superbuild, the actual install root in a non-prefix
build is the top-level build directory (not $TOP_BUILDDIR/qtbase anymore).
This is more in line how CMake lays out things by default.

Task-number: QTBUG-75582
Change-Id: I4e1744b5c877508fedc33e237eec28cb7436010b
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-14 10:16:40 +00:00
Simon Hausmann
0d224dbb9c Remove redundant installation of QtPlatformAndroid.cmake
It's already installed right where QtSetup.cmake is installed.

Change-Id: Ie88363ae3878cda8f92aa44160333886f64565d8
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-12 08:26:00 +00:00
Leander Beernaert
152b22a7b0 Android: Generate deployment-settings.json
Generate the android deployment settings json for android apk
targets. QtPlatformAndroid is now also deployed as a public
build dependency of QtCore. Some minor refactoring has been
performed to the naming of variables and functions to
better match the public facing apis.

Extra settings for the file can be configured using the
following target properties:

set_target_properties(Core
    PROPERTIES QT_ANDROID_DEPLOYMENT_DEPENDENCIES "foo;bar"
    QT_ANDROID_EXTRA_LIBS "foo;bar"
    QT_ANDROID_EXTRA_PLUGINS "foo;bar"
    QT_ANDROID_PACKAGE_SOURCE_DIR "/foo/bar/"
    )

The file is generated using the function
qt_android_generate_depoyment_settings().

We need to install the android template files and jar
files during the android build as the androiddeployqt tool
wont work if parts of it are split between the host
install and the android install.

Added QT_BUILD_QT variable to check whether we are building
Qt from source.

Finally, we also force the stdlib to shared via cmake
configuration with -DANDROID_STL="c++_shared"

Change-Id: I063c47e11749d56ba4c6f02101dbcc09e1b9fe87
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-12 07:21:01 +00:00
Albert Astals Cid
f5a494f3c1 Introduce Platform*Internal targets
Link to them from add_qt_module/plugin/tool

This way we set the warnings_are_errors flags just once
and also non-qtbase modules get them

Change-Id: I2b65a81694aaebdd7c886249f217c11f79492bad
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-05 15:43:23 +00:00
Leander Beernaert
04da0df568 Android: SDK Support
Enable building androiddeployqt when performing host builds only.
Added QtPlatformAndroid.cmake to locate Java and the setup the
android SDK platform when building on android.
Install the androiddeployqt support files when performing a host
build.
Added ANDROID_SDK_ROOT configuration variable for specifying the
android sdk directory.
Generating the deployment-settings.json will be done in another
change.

Change-Id: I1bf15315af4ed904d2fb1d22b0e8e834df32d6ed
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-05 14:20:31 +00:00
Kevin Funk
99539a2894 Allow to build examples as standalone project
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>
2019-06-05 12:53:28 +00:00
Alexandru Croitor
fa57ca055d Install plugin related .cmake.in files
This fixes the build when building qtsvg, qtimageformats, etc.

Amends 0900298d46

Change-Id: Ie732ef6faa99e2ebe7e8da6ee2aa5fc0cf59d3f3
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-06-04 14:55:31 +00:00
Simon Hausmann
44f30db5c1 Fix linking QtGui on Android
Until we have some convenience in place, it is strictly necessary to set
the NDK API level, otherwise the libraries from vcpkg are statically
built against a newer libc headers than what we finally link against.

This also means that we can remove the manual libc linkage again.

Change-Id: If1f2eec4df5ed800ac6b060561edff89236891e9
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CMake Build Bot
2019-06-04 13:57:50 +00:00
Leander Beernaert
bb52bd49e1 Android: Fix linker erros for liblog & libc
For the android platform library add dependencies on liblog and libc
for every Qt target.

The libraries are shipped by default in the Android NDK so they will
always be present.

Change-Id: Ic4a13be32118710b11effabfb16e27bd2d10809f
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-06-04 10:08:20 +00:00
Simon Hausmann
8fa646dbe2 Add basic support for compiling applications with qmake
* Generate module .pri files
* Generate qconfig.pri
* Propagate MODULE_CONFIG from the .pro files

This enables the basic use-case of simple application builds that for
example use the moc. Omitted from the patch is support for private
module configurations, prl files (should we do this?) and possibly more
hidden gems that need to be implemented to for example support building
Qt modules with qmake.

Task-number: QTBUG-75666
Change-Id: Icbf0d9ccea4cd683e4c38340b9a2320bf7951d0d
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-31 12:53:09 +00:00
Alexandru Croitor
9fade925e3 Stop trying to create config forwarding headers for NO_MODULE targets
The GlobalConfig target is not an actual module, so there's no point
in trying to create forwarding headers for GlobalConfig's qconfig.h
within qt_feature_module_end.

qconfig.h's forwarding header will be created implicitly while
processing QtCore target's SYNCQT.INJECTIONS value, which is read
from the headers.pri file generated by syncqt.

This also fixes trying to create forwarding headers when processing
the sqldrivers project.

Amends 02a015375a.

Change-Id: Ifd70d8c3ebf881ffdcf90db8d5d3b23309bc8fed
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-16 09:04:00 +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
Kevin Funk
aef11e420d cmake: Generate config files with Qt:: prefix
Generate CMake config files which export Qt targets with a Qt:: prefix
(i.e. without a major version suffix in the namespace)

Change-Id: Ia07f98be6d0e24c196e3880b7469f1f0c6232c06
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-03 13:51:02 +00:00
Kevin Funk
f2bb48e635 cmake: Install required CMake templates
Change-Id: I4a56440bee1aa7143971dd8f0b8af6dc042703f3
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-05-03 13:50:44 +00:00
Kevin Funk
ca3a7efffd cmake: Fix typo, variable was renamed earlier
Change-Id: I8fe9da37572efe85b2dff0b223edb1d93e904f34
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-03 07:36:16 +00:00
Jean-Michaël Celerier
1b36fe53c6 cmake: export locally-built dependencies in static build
Change-Id: Ifbcedd32cef3b9c8b4b8c9ca0d229850f696f406
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-05-02 11:41:55 +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