be045c7c16 Configure CMake itself with policies through CMake 3.27
c5f1af1ffe export: Increase maximum policy version in exported files to 3.27
86d910ab73 Add deprecation warnings for policies CMP0126 and below
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !8858
b8ead378de cxxmodules: Scan only targets that explicitly enable C++ 20
68fca3eafe cmGeneratorTarget: Track explicitly enabled language standard levels
da36e0638b cmGeneratorTarget: Remove outdated const/mutable pair
c1f1aedcee cmStandardLevelResolver: Add method to look up standard level by name
23b57462aa cmStandardLevelResolver: Report feature std level from GetNewRequiredStandard
7519001ae6 cmStandardLevelResolver: Add method to get feature standard level
99fa01d3fa cmStandardLevelResolver: Factor out public representation of level
fdd81a609a cmStandardLevelResolver: Clarify local variable name
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !8860
b8ead378de cxxmodules: Scan only targets that explicitly enable C++ 20
68fca3eafe cmGeneratorTarget: Track explicitly enabled language standard levels
da36e0638b cmGeneratorTarget: Remove outdated const/mutable pair
c1f1aedcee cmStandardLevelResolver: Add method to look up standard level by name
23b57462aa cmStandardLevelResolver: Report feature std level from GetNewRequiredStandard
7519001ae6 cmStandardLevelResolver: Add method to get feature standard level
99fa01d3fa cmStandardLevelResolver: Factor out public representation of level
fdd81a609a cmStandardLevelResolver: Clarify local variable name
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !8860
26bf32cdc6 LLVMFlang: Add support for targeting MSVC ABI on Windows
e9af7b9687 LLVMFlang: Add support for CMAKE_Fortran_COMPILER_TARGET
26fa048ffe Tests: Enable CMP0091/CMP0141 for MSVC settings in FortranOnly test
9d060b8682 Fortran: Save CMAKE_LINKER variable persistently for MSVC ABI
7571e653f4 CMakeDetermineCompilerABI: Add option to skip implicit link info parsing
12733d0d8d CMakeParseImplicitLinkInfo: Detect link lines using link.exe and lld-link
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !8852
26bf32cdc6 LLVMFlang: Add support for targeting MSVC ABI on Windows
e9af7b9687 LLVMFlang: Add support for CMAKE_Fortran_COMPILER_TARGET
26fa048ffe Tests: Enable CMP0091/CMP0141 for MSVC settings in FortranOnly test
9d060b8682 Fortran: Save CMAKE_LINKER variable persistently for MSVC ABI
7571e653f4 CMakeDetermineCompilerABI: Add option to skip implicit link info parsing
12733d0d8d CMakeParseImplicitLinkInfo: Detect link lines using link.exe and lld-link
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !8852
The files generatd by `install(EXPORT)` and `export()` commands
are known to work with policies as of CMake 3.27, so enable them
in sufficiently new CMake versions.
The OLD behaviors of all policies are deprecated, but only by
documentation. Add an explicit deprecation diagnostic for policies
introduced in CMake 3.21 and below to encourage projects to port
away from setting policies to OLD.
With CMP0155 NEW behavior, we scan C++ sources in targets using C++ 20,
i.e., in which the `cxx_std_20` feature is available. However, our
check for C++ feature availability may incorrectly succeed in two cases:
* MSVC versions from VS 2013 do not model C++ standard levels,
so we assume all features are available as a heuristic to let
projects at least try compiling with them.
* During ABI detection the `CMAKE_CXX20_COMPILE_FEATURES` variable is not
populated so we assume all features are available, knowing that our
ABI detection project does not need them.
For purposes of detecting targets using C++ 20, we do not want to assume
`cxx_std_20` is available, so verify that we really know it is.
Run the script:
Utilities/Sphinx/update_versions.py --since v3.27.0 --overwrite
Manually remove directives added to new documentation of existing
environment variables.
Fix indentation of the `versionadded` markup added by commit 634079b86d
(cmGeneratorExpressionEvaluator: Short-circuit boolean operators,
2023-09-11) to render the note in the appropriate scope.
The compiler does not yet support everything needed to integrate well
with the MSVC ABI, in particular for runtime library selection and debug
format selection. Document them in FIXME comments and leave this
support undocumented by CMake for now.
Fixes: #24840
Inspired-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Brad King