Commit Graph

74 Commits

Author SHA1 Message Date
Alexey Edelev
114d5c045d Fix invalid Qt prefix version when looking for HostInfo module
In QtSetup.cmake the PROJECT_VERSION_MAJOR variable was used to
identify prefix of 'Qt<version>HostInfoConfig.cmake'.
Qt<version>HostInfo is not found, if project version differs
from qtbase version.

Move the 'INSTALL_CMAKE_NAMESPACE' and 'QT_CMAKE_EXPORT_NAMESPACE'
variables to 'QtBuildInternalsConfig.cmake'. In this case
variables will be exposed for a wider list of internal routines.

Use the 'INSTALL_CMAKE_NAMESPACE' variable as prefix to find
Qt<version>HostInfo module.

Fixes: QTBUG-90345
Change-Id: Ic595d1c5beb74f34e69b58e18590a3afc2f346f7
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-26 17:16:04 +01:00
Craig Scott
f283f06216 Make -pkg-config configure option actually work
The QtBuildInternals config package file gets processed before feature
evaluation occurs. That means INPUT_pkg_config may be defined, but the
corresponding FEATURE_pkg_config variable won't have been set/updated
yet. Do this check locally because the availability of a number of
features is conditional on whether pkg-config is available.

Change-Id: I6030eb380ee0c630ffbe5db5eed397a46227c7f6
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-01-18 15:42:48 +11:00
Eirik Aavitsland
e26d2865a7 Fix autotest config in cross-compiled prefix build
qt-cmake-standalone-test would be looking for the config files under
the target machine install prefix instead of under the staging prefix
on the build host.

Change-Id: I29850af6d8fe502f4944f689ec10539d17ccdcb9
Pick-to: 6.0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-12-08 16:36:50 +01:00
Aleix Pol
9d83149133 Offer to build manual tests through QT_BUILD_MANUAL_TESTS
Disabled by default as they are currently not being built and many are
not working properly, this will allow us to start using them again.

Change-Id: I823368d04e9fde2beccabedc3ca15efd1f355bfb
Pick-to: 6.0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-12-08 08:03:54 +00:00
Alexey Edelev
61d5b01972 CMake: Add extra targets to run single benchmark using CMake generator
Add custom targets with '_benchmark' suffixes to make run of
benchmarks using generators possible, e.g.:

$ ninja tst_bench_qudpsocket_benchmark

Extend '-[no]make' option to pass benchmark. Rework
'-[no]make' processing to unify these options processing.
Also looks like it doesn't make sense to enable benchmarks without
having test enabled. So '-DQT_BUILD_BENCHMARKS' enables test as own
dependency automatically.

Task-number: QTBUG-89076
Pick-to: 6.0
Change-Id: Ieee9eadaf6d75a1efec120242d6eb786ace1b071
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-12-07 14:26:07 +00:00
Craig Scott
3859f15ec9 CMake: Enable NEW policies by CMake version with a global default
When a CMake release introduces a new policy that affects most Qt
modules, it may be appropriate to make each module aware of that newer
CMake version and use the NEW policy without raising the minimum CMake
version requirement. To reduce the churn associated with making that
change across all Qt modules individually, this change allows it to be
updated in a central place (qtbase), but in a way that allows a Qt
module to override it in its own .cmake.conf file if required (e.g. to
address the issues identified by policy warnings at a later time). The
policies are modified at the start of the call to
qt_build_repo_begin().

For commands defined by the qtbase module, qtbase needs to be in
control of the policy settings at the point where those commands are
defined. The above mechanism should not affect the policy settings for
these commands, so the various *Config.cmake.in files must not specify
policy ranges in a way that a Qt module's .cmake.conf file could
influence.

Starting with CMake 3.12, policies can be specified as a version range
with the cmake_minimum_required() and cmake_policy() commands. All
policies introduced in CMake versions up to the upper limit of that
range will be set to NEW. The actual version of CMake being used only
has to be at least the lower limit of the specified version range.
This change uses cmake_minimum_required() rather than cmake_policy()
due to the latter not halting further processing upon failure.
See the following:

    https://gitlab.kitware.com/cmake/cmake/-/issues/21557

Task-number: QTBUG-88700
Pick-to: 6.0
Change-Id: I0a1f2611dd629f847a18186394f500d7f52753bc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-12-07 13:22:57 +11:00
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
Joerg Bornemann
e8d8b1a5e4 CMake: Fix Android non-top-level build against qtbase
Commit 9e0fb9c4fb introduced build
failures in non-top-level builds when building Qt modules against
qtbase.

This was observed on in the CI for CentOS.

Partly revert above commit by taking the old code path for non-top-level
builds.

Fixes: QTBUG-88718
Change-Id: I8926e1e4628ec5bdcea99e10497c1f65c10d072d
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
(cherry picked from commit 510186a218e63c88100efc38cb1611f122f94570)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
2020-11-23 09:54:43 +00:00
Joerg Bornemann
fb21a5ce1a CMake: Name QT_NO_MAKE_*/BUILD_* variables consistently
For consistency, apply the following renamings:
QT_NO_MAKE_EXAMPLES -> QT_BUILD_EXAMPLES_BY_DEFAULT
QT_NO_MAKE_TESTS    -> QT_BUILD_TESTS_BY_DEFAULT
QT_NO_MAKE_TOOLS    -> QT_BUILD_TOOLS_BY_DEFAULT
BUILD_EXAMPLES      -> QT_BUILD_EXAMPLES
BUILD_TESTING       -> QT_BUILD_TESTS

This should help to better convey the difference between "BUILD" and
"NO_MAKE".

To configure tests, but not to build them by default, pass the
following to CMake:
-DQT_BUILD_TESTS=ON -DQT_BUILD_TESTS_BY_DEFAULT=OFF

Analoguous for examples:
-DQT_BUILD_EXAMPLES=ON -DQT_BUILD_EXAMPLES_BY_DEFAULT=OFF

Tools can be excluded from the default build with:
-DBUILD_TOOLS_BY_DEFAULT=OFF

The variable BUILD_TESTING is still available and initialized with the
value of QT_BUILD_TESTS.

Pick-to: 6.0 6.0.0
Change-Id: Ie5f29dfbdca8bfa8d687981dfe8c19c0397ca080
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-20 20:38:03 +01:00
Joerg Bornemann
9e0fb9c4fb CMake: Fix Android top-level prefix build
During a top-level prefix build, while configuring qtsvg,
Qt6BuildInternalsConfig tries to include QtBuildInternalsAndroid.cmake
but such files are not copied by qt_copy_or_install() at configure
time.

We need to use the "module" form of include() to take CMAKE_MODULE_PATH
into account. Then QtBuildInternalsAndroid.cmake can be loaded from the
source tree.

The include's current form was introduced in commit
3cb9ee3a5b without further
explanation. Assuming an accidental change.

Pick-to: 6.0 6.0.0
Task-number: QTBUG-88460
Change-Id: If06ac715fae3c2bebbeffca44b7e07265ffb0f71
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-20 16:05:55 +00:00
Volker Hilsheimer
08f46bb400 Toplevel builds: Add utility toplevel targets for each module
Add a target for each level-1 subdirectory in a module. Ninja already
generates phony targets such as "qtbase/src/all", but those are not
available in e.g. IDE integrations of CMake. With this addition, targets
like qtbase, qtbase_src, and qtbase_tests are available in IDEs.

Pick-to: 6.0 6.0.0
Change-Id: If1c3369e9413b3ce127e68c443d4d22949708d5e
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-20 15:52:22 +00:00
Joerg Bornemann
2746051522 CMake: Disconnect docs installation targets from generation targets
"ninja install_docs" should not run the "docs" target, because with
the usual workflow
    ninja docs
    ninja install_docs
the documentation would be built twice.

That of course means that "ninja install_docs" will fail if "ninja
docs" wasn't run before.

Analogous for html_docs, qch_docs, the repository-level and
module-level documentation targets.

Change-Id: I8ad83602dd393b5afc79a19ab3d395987c889d0d
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-06 22:03:51 +01:00
Joerg Bornemann
db939d8f33 CMake: Fix top-level documentation install targets
The following targets did not do any actual installation:
install_docs, install_html_docs, install_qch_docs,
plus their repository-level counterparts.

Add the following dependencies:

install_html_docs
    --> install_html_docs_<repo>
        --> install_html_docs_<module>

Analogous for qch.

The install_docs target already triggers install_html_docs and
install_qch_docs. Analogous for install_docs_<repo>.

Fixes: QTBUG-86738
Change-Id: I3468e000e050e2787a859e61d40161f5459cb351
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-11-06 22:03:51 +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
da1854c683 CMake: Re-work documentation targets
The top-level prepare_docs target is supposed to run before the
generate_docs target.

The repository-level targets like prepare_docs_qtbase now also run
before their respective generate targets.

To achieve that, several intermediate targets had to be introduced.
The dependencies for top-level generate_docs look like this:

              /--> generate_top_level_docs_Core --\
generate_docs ---> generate_top_level_docs_Gui  -----> prepare_docs
              \--> ...                          --/

The dependencies for repo-level generate_docs_<repo> look like this:

                     /--> generate_repo_docs_Core
generate_docs_qtbase ---> generate_repo_docs_Gui
                     \--> ...

generate_repo_docs_Core --\
generate_repo_docs_Gui  -----> prepare_docs_qtbase
...                     --/

Analoguous for qch_docs.

And last but not least, the module-level generate_docs_<module> depends
on prepare_docs_<module>, just like before.

The strangely named top-level install targets have been renamed to
install_html_docs, install_qch_docs and install_docs.

The html_docs target is now merely an alias for generate_docs.

Apart from prepare_docs, the top-level targets do not depend on the
repository-level targets anymore. Targets that are just an alias (docs,
install_docs, ...) have been re-defined to depend just on the respective
top-level targets.

Fixes: QTBUG-87758
Change-Id: I24466d3a252d518a30a2064bf876be881c46231f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-10-28 10:38:28 +01:00
Alexandru Croitor
20292250d4 CMake: Fix handling of rpaths for tests with CMAKE_STAGING_PREFIX
Task-number: QTBUG-86053
Change-Id: I2f368d9dc2d871b67bd6261aadd8ef4c1dd1ae54
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-10-26 13:46:49 +01:00
Alexandru Croitor
df9c7456d1 CMake: Add convenience custom targets to build Qt plugins
Add 3 new convenience custom targets:
'qt_plugins', 'qpa_plugins' and 'qpa_default_plugins'.

Additionally, if we detect that an internal executable / test
links against Gui, add a dependency on the 'qpa_default_plugins'
custom target, so that if a developer configures Qt for the first time
and then calls ninja 'tst_foo_check', we ensure the test will launch
successfully because the default QPA plugin will also be built.

Change-Id: If6dd70844b5effdf8a293f65f8785855cc85b132
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-10-22 23:32:23 +00:00
Alexandru Croitor
07b6d3367d CMake: Refactor optimization flag handling and add optimize_full
Introduce a bunch of helper functions to manipulate compiler
flags and linker flags for the
CMAKE_<LANG>_FLAGS_<CONFIG>
and
CMAKE_<LINK_TYPE>_LINKER_FLAGS_<CONFIG>
CMake variables.
These variables can be assigned and modified either in the cache
or for a specific subdirectory scope, which will apply the flags
only to targets in that scope.

Add qt_internal_add_optimize_full_flags() function which mimics
qmake's CONFIG += optimize_full behavior.

Calling it will force usage of the '-O3' optimization flag on supported
platforms (falling back '-O2' where not supported).

Use the function for the Core and Gui subdirectories, to enable full
optimization for the respective Qt modules as it is done in the qmake
projects.

To ensure that the global qmake-like compiler flags are assigned
eveywhere,
qt_internal_set_up_config_optimizations_like_in_qmake() needs
to be called after Qt global features like optimize_size and
optimize_full are available.

This means that qtbase and its standalone tests need some special
handling in regards to when to call that function.

Task-number: QTBUG-86866
Change-Id: Ic7ac23de0265561cb06a0ba55089b6c0d3347441
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-10-06 10:07:05 +02:00
Alexandru Croitor
9bcabd71a7 By default don't try to use pkg-config when targeting Android
It causes issues in our Windows CI, because the strawberry perl
pkg-config is found. And even that one is unusable, due to a bug in
CMake which is tracked at
https://gitlab.kitware.com/cmake/cmake/-/issues/21239

Change-Id: I58816195d35459e8a44c923399c35a4956c222a2
Reviewed-by: Simon Hausmann <hausmann@gmail.com>
2020-09-28 15:48:17 +02:00
Alessandro Portale
72388f77a7 CMake: Turn off pkg_config_enabled if pkg_config is not found
The qt_build_internals_disable_pkg_config_if_needed function didn't
actually check if the pkg-config executable is available when turning
the pkg-config feature on.

This broke certain configurations like Android (on some hosts).

Try to find the executable and take that into account when computing
the value of the feature.

Task-number: QTBUG-85399
Change-Id: Ie79c637f2d2b689c392862c90075d309906fe506
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-09-09 18:53:45 +02:00
Joerg Bornemann
729d102b1c CMake: Implement configure -optimize-debug
Task-number: QTBUG-85373
Change-Id: I3aba1fcf96e36544dd75a5e6adc5f770a9a45726
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-08-20 17:07:53 +02:00
Alexandru Croitor
cb1600145b CMake: Adjust compiler flag optimizations to qmake mkspec ones
There are inconsistencies in the default optimization flags added by
CMake across configurations like Release and RelWithDebInfo.
In particular Release uses -O3, whereas RelWithDebInfo uses -O2,
as well as usage of /INCREMENTAL in release configs with MSVC, etc.

To make sure that the Qt 6 binaries built with CMake are consistent
across configs, as well as consistent with the flags we used when
building Qt 5 with qmake, add a horrible search and replace mechanism
to replaces the CMake flags with what our mkspecs indicate to use.

Ideally this would be done by providing custom CMake toolchain files
for each platform we support, and we might revisit that later if the
need really arises.

To implement the replacing, we first need the flags that should be
added. Port the QMAKE_CFLAGS_OPTIMIZE variables to CMake, which is
done in QtCompilerOptimization.cmake.

Then a new function called
qt_internal_set_up_config_optimizations_like_in_qmake will look for
any kind of optimization flags set in the
CMAKE_<LANG>_FLAGS_<CONFIG> style variables, remove them, and add
the appropriate flags that qmake mkspecs provide.

On some platforms (like Windows MSVC) the function also alters the
linker CMAKE_${TYPE}_LINKER_FLAGS_<CONFIG> style variables.

The mechanism allows opting out of this replacing by
setting the QT_USE_DEFAULT_CMAKE_OPTIMIZATION_FLAGS value.

It also allows opting into removal of flags for custom configs by
providing QT_ADDITIONAL_OPTIMIZATION_FLAG_CONFIGS. It's only removal,
because we wouldn't know what kind of config it is, and thus what
flags to add.

The currently modified configs are: Release, RelWithDebInfo,
MinSizeRel, Debug aka the usual default CMake provided ones.

The mechanism is only applied to C-like languages.
ASM is not handled to be on the safe side due to not knowing what kind
of compiler flags the platform assembler might take.
It's also important to skip RC on MSVC platforms.

Task-number: QTBUG-85992
Change-Id: I3712d5cd5a34fceab54f56a6fa46b4e678952362
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-08-19 18:25:59 +02:00
Cristian Adam
1b802c41eb CMake Build: Disable pkg-config for QNX
QNX doesn't come with pkg-config support.

Task-number: QTBUG-83202
Change-Id: I2ac0c014a071b83ef9a2d8114bae0e9ff9b3b422
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-08-19 12:46:10 +02:00
Alexandru Croitor
5e0129f63c CMake: Fix configuration of CMake tests in-build-tree
Qt6 package was not found the tests were configured in-tree as opposed
to standalone tests.
Use the same trick we do for building examples in-tree.
Specify the path to the build tree packages, and don't create targets.

Amends 96e3ee0659

Change-Id: Ia60de416ce0afff5bd40be8c0c6e3c7898fd7ebf
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-07-20 18:12:23 +02:00
Alexandru Croitor
f3c7d22dd0 CMake: Don't use libraries in /usr/local by default on macOS
qmake builds of Qt don't use libraries in /usr/local because the
path is not considered a system path. Only the SDK path should be
used as a source of system libraries.

We should do the same for the CMake builds, which involves a couple of
things.

Tell CMake not to consider /usr/local (and a bunch of other
paths) as system prefix paths.

Disable pkg-config usage which by default is not used in qmake
Windows and macOS builds.

If a user wishes to use libraries located in /usr/local on macOS, they
can explicitly enable the behavior via -DFEATURE_pkg_config=ON.

In addition to enabling pkg-config, that will also disable the system
prefix modification described above.

Implementation notes

To disable pkg-config usage, we set an empty path for
PKG_CONFIG_EXECUTABLE, because there is no other good way. The
downside to this is that a lot of warning messages will be printed
that the pkg-config package can not be found.

The pkg-config feature needs to be computed in QtBuildInternals before
qtbase/src/configure.cmake, because it's too late to do it in that
file where a few qt_find_package calls already exist.
The feature value is also saved to QtBuildInternalsExtra, to make sure
that pkg-config is disabled whenever building another repo.

System prefix adjustment is done by removing paths from
CMAKE_SYSTEM_PREFIX_PATH.
Ideally we would remove also /usr as a path, to match what qmake does,
but that breaks find_program() calls for perl, python, etc.

We have to make sure that qt_find_package does not look in
PATH when looking for packages, which is the default behavior, because
PATH on macOS most likely contains /usr/local.

One last curiosity for future generations is that CMake 3.18+ has
merged a change to prioritise SDK locations over regular /usr/lib.

Fixes: QTBUG-85261
Change-Id: I28fe5bae7997507a83b37b4eb1e0188e64062c57
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2020-06-29 17:34:22 +02:00
Alexandru Croitor
2efd0fbc32 CMake: Add meta-target host_tools to easily build just the tools
A developer could write 'ninja host_tools' to build the qtbase tools
and their dependencies, and then configure another cross-compiling
build dir pointing to the previous host build. This shortens the
workflow for cross-building when working in qtbase.

Change-Id: I69e70d23ce9df8669bcadf326d0586f097e5cb21
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-06-26 22:14:29 +02:00
Alexandru Croitor
2d9c9ab874 CMake: Don't reset install prefix upon standalone test reconfiguration
CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT might be empty on the
first configuration, but because QtBuildInternalsExtra sets the
CMAKE_INSTALL_PREFIX, a second reconfiguration of a test would
stop setting the fake install prefix.

After some further consideration, there's no need to set the local
fake prefix conditionally, we can always do it (unless explicitly
opted out).

This makes sure that a reconfiguration of a test doesn't suddenly
install into the Qt prefix again.

Amends 37b132cd4e

Task-number: QTBUG-84346
Change-Id: Ic61aefe18418658455d8cdb9ebe6bcbcb8d67c99
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
2020-06-08 18:25:51 +02:00
Jean-Michaël Celerier
35608c0761 cmake: quote paths to prevent issues when no install prefix is set
Change-Id: Ifa7f1ef70c4893e10cb4ce9a54d8a0806d19be93
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-06-05 20:57:32 +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
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
Venugopal Shivashankar
f3bfee0cb6 CMake: Fix the setup for html_docs and qch_docs
Traditionally, these make targets generated HTMLs
and QCH only. This change fixes the dependency for
these targets to ensure that behavior.

Fixes: QTBUG-83877
Change-Id: Ic7c8afe5853d33fc4cc4cfd996f87e5f65df31ed
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
2020-04-30 08:15:36 +00:00
Alexandru Croitor
39090ea15c CMake: Fix usage of correct install prefix for standalone tests
Previously configuration of standalone tests might have failed
due to CMake trying to create files in the /usr/local default
prefix.
Make sure to use a fake prefix in the binary dir instead,
unless another prefix is explicitly specified.

Change-Id: Icfcb32285aa5596abf1a918396b26673880a8d27
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-04-30 10:13:18 +02:00
Leander Beernaert
43031d98fc CMake: Allow sqldriver plugins to be built as standalone
This patch allows all the sqldrivers to be built as a standalone project.
It is not possible to build each plugin separately due to the configuration
features definition being located in the sqldriver's folder CMakeLists.txt.

In other words, the project needs to be generated from the
src/plugins/sqldrivers/CMakeLists.txt file.

Fixes: QTBUG-82962
Change-Id: If41c7e3827589391830a894a9c998d2e56239562
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-24 07:41:13 +02:00
Leander Beernaert
6fbeef4c6b CMake: Add qt6_add_plugin public API
This patch adds a publicly callable qt6_add_plugin() API to create
plugins. This API is meant to cover cases such as the plugandpaint
example.

This patch also renames qt_add_plugin to qt_internal_add_plugin in order
to avoid clashes with the public API. To avoid breaking the existing
projects, a compatibility wrapper function is enabled by default unless
QT_DISABLE_QT_ADD_PLUGIN_COMPATIBILITY is specified.

Fixes: QTBUG-82961
Change-Id: If5b564a8406c90434f1bdad0b8df76d3e6626b5f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-22 09:51:12 +02:00
Alexandru Croitor
d6272d774c CMake: Make sure not to use the Qt prefix for standalone tests
We don't want people accidentally installing tests into the
Qt prefix.

Change-Id: Ic99492559875f753897a83af162253cac846a8a5
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-17 15:59:33 +02:00
Alexandru Croitor
67ee92f4d8 CMake: Handle automatic rpath embedding correctly
Instead of using CMAKE_INSTALL_RPATH to embed an absolute path
to prefix/libdir into all targets, use the more sophisticated aproach
that qmake does.

For certain targets (modules, plugins, tools) use relative rpaths.
Otherwise embed absolute paths (examples, regular binaries).
Installed tests currently have no rpaths.

On certain platforms rpaths are not used (Windows, Android,
iOS / uikit).

Frameworks, app bundles and shallow bundles should also be handled
correctly.

Additional rpaths can be provided via QT_EXTRA_RPATHS variable
(similar to the -R option that configure takes).

Automatic embedding can be disabled either via QT_FEATURE_rpath=OFF
or QT_DISABLE_RPATH=ON.

Note that installed examples are not relocatable at the moment (due
to always having an absolute path rpath), so this is a missing feature
compared to qmake. This is due to missing information on where
examples will be installed, so a relative rpath can not be computed.

By default a Qt installation is relocatable, so there is no need to
pass -DQT_EXTRA_RPATHS=. like Coin used to do with qmake e.g. -R .

Relative rpaths will have the appropriate 'relative base' prefixed
to them (e.g $ORIGIN on linux and @loader_path on darwin platforms).
There is currently no support for other platforms that might have a
different 'relative base' than the ones mentioned above.

Any extra rpaths are saved to BuildInternalsExtra which are re-used
when building other repositories.

configurejson2cmake modified to include correct conditions for the
rpath feature.

It's very likely that we will need a new qt_add_internal_app()
function for gui apps that are to be installed to prefix/bin.
For example for Assistant from qttools. Currently such apps
use qt_add_executable().
The distinction is necessary to make sure that relative rpaths are
embedded into apps, but not executables (which tests are part of).

Amends e835a6853b

Task-number: QTBUG-83497
Change-Id: I3510f63c0a59489741116cc8ec3ef6a0a7704f25
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-04-17 15:59:25 +02:00
Alexandru Croitor
23be07c2d0 CMake: Autodetect Objective-C support only on macOS
On Android, check_language() reports that the languages are supported,
but enable_language fails afterwards.

On Linux it causes issues with the PCH. The PCH file might contain
a Clang pragma, even though the C++ compiler is GCC. Presumably due
to finding a Clang Objective-C compiler.

Change-Id: I1b4c54459772c089e7f6350872c87af52ad72a37
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
2020-04-07 13:04:06 +02:00
Alexandru Croitor
430232e44d CMake: Adjust PCH support for multi-arch iOS builds
Starting with CMake 3.18, there is PCH support for darwin multi-arch
builds, like iOS simulator_and_device builds.

Also enable PCH for Objective-C++ files when the support is there.

To enable PCH for Objective-C++, we need to do enable the OBJCXX
language as well, but conditionally, because on non-darwin platforms
the language is probably not available.

Introduce the qt_enable_cmake_languages() macro which is called
automatically by qt_build_repo_begin().

Change-Id: I0e7f44be6577ac54ce940470036626409920e272
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-04-03 21:51:06 +02:00
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
Alexandru Croitor
edf5fe49b3 CMake: Add global / top-level docs targets
Previously you could use either module-specific or
repo-specific 'docs' targets.
For example 'ninja html_docs_qtbase' or 'ninja html_docs_Core'.

Now there's a global / top-level target called
'docs', so 'ninja docs' works.

For super builds it will build the documentation of all
configured repositories.

For a single repo build, it's equivalent to calling
'ninja docs_repo_name'.

Also for consistency, add the "docs_Core" target, which was missing
before. So now a 'docs' target exsits for repo names AND targets.

New global target names are
- docs
- prepare_docs
- generate_docs
- html_docs
- qch_docs
- install_html_docs_docs
- install_qch_docs_docs
- install_docs_docs

Amends 0095ff4e06

Change-Id: I686be1e0962e40cbce860e8ac2cabb056b360ac2
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2020-03-18 17:25:15 +01:00
Alexandru Croitor
95e1469eb8 CMake: Port most of the configure summary support
Teaches configurejson2cmake about summaries / reports, so things
like enabled features, configure sections, notes, etc.

Add relevant CMake API for adding summary sections and entries,
as well as configure reports. The commands record the passed data,
and the data is later evaluated when the summary needs to be printed.
This is needed, to ensure that all features are evaluated by the
time the summary is printed.

Some report and summary entries are not generated if they mention a
feature that is explicitly exclduded by configurejson2cmake's feature
mapping dictionary. This is to prevent CMake from failing at configure
time when trying to evaluate an unknown feature. We should re-enable
these in the future.

A few custom report types are skipped by configurejson2cmake (like
values of qmake CONFIG or buildParts).
These will have to be addressed a case-by-case basis if still needed.

Change-Id: I95d74ce34734d347681905f15a781f64b5bd5edc
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2020-03-09 23:08:57 +01:00
Alexandru Croitor
4ee289d2d8 CMake: Use correct C++ standard flag when building standalone tests
Before the patch we set the standard flags in two places:
- once when building qtbase
- and always when including QtSetup (for every repo that is built)

This change makes sure to also set the correct standards flag when
building standalone tests, because QtSetup is called to early in
that case.

Change-Id: Iad130b731e9eb9605bb91637364c33fdd49ce3cb
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2020-02-18 21:22:34 +01:00
Liang Qi
6b2535ea15 Merge remote-tracking branch 'origin/5.15' into dev
Conflicts:
	examples/widgets/graphicsview/boxes/scene.h
	src/corelib/Qt5CoreMacros.cmake
	src/corelib/Qt6CoreMacros.cmake
	src/network/ssl/qsslsocket.cpp
	src/network/ssl/qsslsocket.h
	src/platformsupport/fontdatabases/windows/qwindowsfontenginedirectwrite.cpp
	src/testlib/CMakeLists.txt
	src/testlib/.prev_CMakeLists.txt
	tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp

Disabled building manual tests with CMake for now, because qmake
doesn't do it, and it confuses people.

Done-With: Alexandru Croitor <alexandru.croitor@qt.io>
Done-With: Volker Hilsheimer <volker.hilsheimer@qt.io>
Change-Id: I865ae347bd01f4e59f16d007b66d175a52f1f152
2020-02-13 18:31:40 +01:00
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
Leander Beernaert
0095ff4e06 Add custom targets for documentation
Adds custom targets which take care of generating and installing
documentation files.

Every module has a global set of targets suffixed with the module
name in order for them to be unique when we implement super builds.
The targets are the same as the list below, but replace ${target}
with the module's name. Eg.: docs_qtbase.

For every target which has an qt_add_docs() call, we now create the
following set of custom targets:

* docs_${target}
* html_docs_${target}
* qch_docs_${target}
* prepare_docs_${target}
* generate_docs_${target}
* install_docs_${target}
* install_html_docs_${target}
* install_qch_docs_${target}

Fixes: QTBUG-75859
Change-Id: Ie84cb9a2dedbe7333d9a84f4d73383442deca477
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-12-18 14:27:01 +00:00
Alexandru Croitor
e7f188b2d2 Don't include standalone tests config file if none exists
Some repos like qtimageformats don't generate a config file for
standalone tests because the repo creates no modules.

Amends de3a806def

Change-Id: Id42338804605a883f975feb5dd81eda5acc6e687
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-11-13 10:00:12 +00:00
Leander Beernaert
2199a50a2a Build test/manual if it contains a CMakeLists.txt
Change-Id: Ibada60b0902f9c6a6a7284489a56106e0021a9de
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-11-12 10:06:46 +00:00
Alexandru Croitor
021c17c62f Add support for -nomake-tests and -nomake-examples equivalents
A developer can pass either -DQT_NO_MAKE_TESTS=ON or
-DQT_NO_MAKE_EXAMPLES=ON to exclude tests or examples from being built
as part the default make target (when you write just make or ninja).

With ninja, tests and examples can be built separately one by one,
by typing
 $ ninja tst_foo
or
 $ ninja example_bar

Same can be done with the Makefile generator.
 $ make tst_foo

All tests / examples can be built in one go by typing
 $ ninja tests/all
or
 $ ninja examples/all

With the Makefile generator unfortunately it's not as nice and is most
likely an implementation detail, but it can still be done by running
something like
 $ make -f CMakeFiles/Makefile2 tests/all
or
 $ make -f CMakeFiles/Makefile2 examples/all

Change-Id: I34f168b3ab41e952a21d3ace5634e25a9f41922e
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-11-08 16:05:44 +00:00
Alexandru Croitor
de3a806def Make standalone tests build via top level repo project
Previously repo/tests/CMakeLists.txt was a standalone project on which
CMake could be called. This was useful for Coin to be able to build
and package only tests, but was a bit troublesome because that means
having to specify the usual boilerplate like minimum CMake version,
which packages to find in every tests.pro project.

Instead of having a separate standalone project, modify the top level
project and associated CMake code to allow passing a special
QT_BUILD_STANDALONE_TESTS variable, which causes the top level project
to build only tests, and find Qt in the previously installed qt
location.

This also means that when building a repo, we generate a
${repo_name}TestsConfig.cmake file which does find_package on all the
modules that have been built as part of that repo. So that when
standalone tests bare built for that repo, the modules are
automatically found.

qt_set_up_standalone_tests_build() is modified to be a no-op because
it is not needed anymore. Its usage should be removed from all the
other repos, and then removed from qtbase.

Non-adjusted tests/CMakeLists.txt projects in other repositories
should still be buildable with the current code, until they are updated
to the new format.

Adjust the Coin build instructions to build the standalone tests in a
separate directory.

Adjust pro2cmake to generate new structure for the tests/tests.pro
projects.

Adjust the qtbase tests project.

Fixes: QTBUG-79239
Change-Id: Ib4b66bc772d8876cdcbae1e90ce5a5a5234fa675
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-11-08 15:42:32 +00:00
Leander Beernaert
cd9813d276 Add support for benchmark conversion
Convert benchmark executables to add_qt_benchmark().

Currently add_qt_benchmark just calls add_qt_executable() and
ensures that it they build under CMAKE_CURRENT_BUILD_DIR and do not
install.

Add QT_BUILD_BENCHMARKS option to enable/disable building of benchmarks.

Change-Id: Id0bc676698d21d50048d97d9abef51d92ccb6638
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2019-11-04 15:48:30 +00:00