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CMake: Increase minimum required CMake version to 3.22

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For both building and using Qt.

The Linux distributions that Qt 6.9 aims to support have the following
CMake versions in their official package repositories:

rhel   8.10        ships 3.26.5
rhel   9.4         ships 3.26.5
opensuse 15.6      ships 3.28.3
ubuntu 24.04       ships 3.28.3
debian 11.6        ships 3.24
debian 12          ships 3.25
yocto 4.0 kirstone ships 3.22
suse enterprise is similar to opensuse

Windows and macOS don't ship cmake, developers on those
platforms always have to manually download / install cmake from
somewhere, thus they can use most newer versions.

The lowest common version on Linux is 3.26.
The lowest common version on Linux including yocto 4.0 is 3.22.

Until we clarify whether we need to support the yocto version or not,
the safe assumption is that we need to.

Hence the minimum required version will be 3.22.
We might revisit this later.

The minimum and maximum cmake policy version are left at
the existing 3.16 and 3.21 respectively, because changing those would
require more work than just bumping the minimum.

[ChangeLog][Build Systems] Building and using Qt now requires at least
CMake version 3.22.

Task-number: QTBUG-131169
Change-Id: I319cc61f4099bd8d3fae04e8c270340ab09ff8a8
Reviewed-by: Kai Köhne <kai.koehne@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
This commit is contained in:
Alexandru Croitor 2024-11-13 13:24:55 +01:00
parent 5803af38aa
commit d14addfd45
1 changed files with 6 additions and 6 deletions
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12
.cmake.conf
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@ -13,16 +13,16 @@ set(QT_REPO_MODULE_PRERELEASE_VERSION_SEGMENT "alpha1")
set(QT_COPYRIGHT "Copyright (C) The Qt Company Ltd. and other contributors.")
# Minimum requirement for building Qt
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_SHARED "3.16")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_STATIC "3.21")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_APPLE "3.21")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_SHARED "3.22")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_STATIC "3.22")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_BUILDING_QT_APPLE "3.22")
# Minimum requirement for consuming Qt in a user project.
# This might be different in the future, e.g. be lower than the requirement for
# building Qt.
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_SHARED "3.16")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_STATIC "3.21")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_APPLE "3.21")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_SHARED "3.22")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_STATIC "3.22")
set(QT_SUPPORTED_MIN_CMAKE_VERSION_FOR_USING_QT_APPLE "3.22")
# Policy settings for commands defined by qtbase.
# These will also be injected into the top level policy scope of each Qt