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| author | Alexey Edelev <alexey.edelev@qt.io> | 2022-08-15 18:29:41 +0200 |
|---|---|---|
| committer | Alexey Edelev <alexey.edelev@qt.io> | 2022-09-27 13:12:11 +0200 |
| commit | b89d63515bb352cecfd87e709320a2db5b6a1906 (patch) | |
| tree | 4f6e40d6e14991af1c9082ab7508a49a6360f25a /cmake/QtBuild.cmake | |
| parent | 458ec4cb5442315c2c923ba78faf45fdd729a109 (diff) | |
Replace the syncqt.pl script with syncqt tool
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>
Diffstat (limited to 'cmake/QtBuild.cmake')
| -rw-r--r-- | cmake/QtBuild.cmake | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/cmake/QtBuild.cmake b/cmake/QtBuild.cmake index a99bb20c4a..2db677bef8 100644 --- a/cmake/QtBuild.cmake +++ b/cmake/QtBuild.cmake @@ -228,6 +228,15 @@ if(NOT QT_MKSPECS_DIR) set(QT_MKSPECS_DIR "${QT_MKSPECS_DIR}" CACHE INTERNAL "") endif() +# macOS versions 10.14 and less don't have the implementation of std::filesystem API. +if(CMAKE_HOST_APPLE AND CMAKE_HOST_SYSTEM_VERSION VERSION_LESS "19.0.0") + message(FATAL_ERROR "macOS versions less than 10.15 are not supported for building Qt.") +endif() + +if(NOT DEFINED QT_USE_SYNCQT_CPP) + set(QT_USE_SYNCQT_CPP FALSE) +endif() + # the default RPATH to be used when installing, but only if it's not a system directory list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/${INSTALL_LIBDIR}" isSystemDir) if("${isSystemDir}" STREQUAL "-1") |