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| author | Fabian Kosmale <fabian.kosmale@qt.io> | 2022-12-06 21:07:38 +0100 |
|---|---|---|
| committer | Marc Mutz <marc.mutz@qt.io> | 2022-12-10 10:43:38 +0000 |
| commit | b9c80ecc08d98052e4757a916a8a55701be63497 (patch) | |
| tree | 56f87dd073beca90db95da6f978b979023fe1a78 /cmake | |
| parent | 8aae821b5aa2bd0ac919683dcb3cb62913ca9063 (diff) | |
CMake: Add qt 'policy' support
This mimics CMake's policy support. The policy state is stored in an
internal __QT_INTERNAL_POLICY_<policy> variable; by using normal
variables, we gain support for stacking for free.
Policies can be explicitly en- or disable via qt6_policy; that command
also has a GET mode to retrieve them again.
Furthermore, one can now pass min and max version to
qt6_standard_project_setup, to opt in to a certain set of defaults
introduced in a given Qt version.
We add support for policies in QtModuleHelpers, so that we can check for
known policies while building Qt itself.
No actual policies exist yet; but a follow up commit will introduce one
for qt_add_qml_module.
Change-Id: I57a0404c9193926dd499f94cc5f73e359355c0b3
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/QtModuleHelpers.cmake | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/cmake/QtModuleHelpers.cmake b/cmake/QtModuleHelpers.cmake index 9a9e3bec1d..8a8912bfb4 100644 --- a/cmake/QtModuleHelpers.cmake +++ b/cmake/QtModuleHelpers.cmake @@ -39,6 +39,7 @@ macro(qt_internal_get_internal_add_module_keywords option_args single_args multi EXTRA_CMAKE_INCLUDES NO_PCH_SOURCES EXTERNAL_HEADERS + POLICIES ${__default_private_args} ${__default_public_args} ${__default_private_module_args} @@ -674,6 +675,21 @@ set(QT_LIBINFIX \"${QT_LIBINFIX}\")") set(extra_cmake_code "") + if(arg_POLICIES) + set(policies "") + foreach(policy IN LISTS arg_POLICIES) + list(APPEND policies "set(QT_KNOWN_POLICY_${policy} TRUE)") + + # When building Qt, tests and examples might expect a policy to be known, but they + # won't be known depending on which scope or when a find_package(Module) with the + # respective policy is called. Check the global list of known policies to accommodate + # that. + set_property(GLOBAL APPEND PROPERTY _qt_global_known_policies "${policy}") + endforeach() + list(JOIN policies "\n" policies_str) + string(APPEND extra_cmake_code "${policies_str}\n") + endif() + # Generate metatypes if(${arg_GENERATE_METATYPES}) # No mention of NO_GENERATE_METATYPES. You should not use it. |