b89d63515b
syncqt.pl adds an extra dependency on perl when building Qt. Modern C++
provides the convenient cross-platform way to access a filesystem and
to use regular expressions, so we may replace the perl script with C++
application. The syncqt executable is built at configure time and
installed as QtCore tool. It's running at configure time to deliver the
required header files for IDE to build a consistent code model and at
the build time to keep tracking changes in header files and generate
the missing aliases without reconfiguring. 'syncqt' only parses header
files from a CMake build tree, so the resulting Qt installation only
contains interfacing headers that belong to the platform that Qt is
built for. 'sync.profile' files are not used as the 'source of truth'
for sync qt procedure anymore, all the necessary information is taken
from either CMake files at configure time or from the module header
files while parsing them.
syncqt.pl is still in place since it's required as fallback solution
for a smooth transition to the new syncqt implementation for all qt
repositories.
This patchset only enables the C++ based syncqt for 'qtbase'
repository.
From the performance perspective C++ version works faster then perl
script, also the configure time is reduced significally on subsequent
reconfigurations - up x2 times faster when re-configuring repository,
but it also takes time to compile the tool itself the first time.
Numbers for qtbase:
syncqt.pl syncqt.cpp
initial: 0m16,035s 0m20,413s
reconfig: 0m6,819s 0m3,725s
The syncing procedure can be run separately for each module using
<ModuleName>_sync_headers targets. The 'sync_headers' target can be
used to sync all the modules at once.
Task-number: QTBUG-87480
Task-number: QTBUG-103196
Change-Id: I8c938bcaf88a8713b39bbfd66d9e7ef12b2c3523
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
37 lines
1.7 KiB
Plaintext
37 lines
1.7 KiB
Plaintext
# set (git) module specific defines, but only if we are actually qtbase
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# do _not_ set them as the global toplevel configuration
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# we check for QT_REPO_MODULE_VERSION before defining it below; that will
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# ensure that when this file is included the second time in a toplevel buld
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# (directly by qtbase) we actually add the extra definitions
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if (NOT DEFINED QT_SUPERBUILD OR DEFINED QT_REPO_MODULE_VERSION)
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set(QT_EXTRA_INTERNAL_TARGET_DEFINES "QT_LEAN_HEADERS=1")
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endif()
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set(QT_REPO_MODULE_VERSION "6.5.0")
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set(QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT "alpha1")
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# Minimum requirement for building Qt
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set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_SHARED "3.16")
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set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_STATIC "3.21")
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# Minimum requirement for consuming Qt in a user project.
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# This might be different in the future, e.g. be lower than the requirement for
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# building Qt.
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set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_SHARED "3.16")
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set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_STATIC "3.21")
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# Policy settings for commands defined by qtbase. These will also be injected
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# into the top level policy scope of each Qt module when building Qt so that
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# modules have the same policy settings as qtbase by default. They can be
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# overridden by individual Qt modules in their own .cmake.conf files if needed.
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#
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# NOTE: These two values are also hard-coded in QtBuildInternalsConfig.cmake
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# because that file is used in-place by a superbuild, so there is no
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# opportunity for substituting the values from here. Keep both locations
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# in sync.
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set(QT_MIN_NEW_POLICY_CMAKE_VERSION "3.16")
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set(QT_MAX_NEW_POLICY_CMAKE_VERSION "3.21")
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# Use cpp-based syncqt
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set(QT_USE_SYNCQT_CPP TRUE)
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