Reapply the implementation in commits commits 77312cc6 (CUDA: Add
support for [CMAKE_]CUDA_LINKER_LAUNCHER, 2025-05-30,
v4.1.0-rc1~80^2~1) and cdf2a36f (HIP: Add support for
[CMAKE_]HIP_LINKER_LAUNCHER, 2025-05-30, v4.1.0-rc1~80^2).
Add a special case to expand the correct rule placeholder for these
languages, which is spelled `CMAKE_<LANG>_HOST_LINK_LAUNCHER`. Enable
the tests for these languages correctly. Re-document support under
CMake 4.5.
Fixes: #26967
The implementation in commits 77312cc6 (CUDA: Add support for
[CMAKE_]CUDA_LINKER_LAUNCHER, 2025-05-30, v4.1.0-rc1~80^2~1) and
cdf2a36f (HIP: Add support for [CMAKE_]HIP_LINKER_LAUNCHER, 2025-05-30,
v4.1.0-rc1~80^2) is broken, and the tests are wrongly configured
so as to never actually run. Revert the entire feature to avoid future
confusion, including documented support.
Enable the test for Fortran, which was added but untested by commit
d176a8c5ce (Fortran: Add support for [CMAKE_]Fortran_LINKER_LAUNCHER,
2025-05-26, v4.1.0-rc1~96^2), and whose implementation works.
Issue: #26967
The `arm64ec` value was added by commit 7f0f382c55 (Provide
CMAKE_<LANG>_COMPILER_ARCHITECTURE_ID on more compilers, 2025-03-24,
v4.1.0-rc1~499^2) but not documented.
Note that the Clang `-marm64x` flag can produce `aarch64;arm64ec`.
Issue: #28067
Both architectures appear in object files, so add both of them to
`CMAKE_<LANG>_COMPILER_ARCHITECTURE_ID` too. We already do this for
multiple `CMAKE_OSX_ARCHITECTURES` on Apple platforms.
Fixes: #28067
Commit 680fbb112a (Autogen: Enable depfile support for Visual Studio and
Xcode generators) disabled the PRE_BUILD optimization when a depfile is
used, because a PRE_BUILD event cannot carry depfile dependencies. Since
then, every target with AUTOMOC or AUTOUIC enabled gains an
'<ORIGIN>_autogen' and an '<ORIGIN>_autogen_timestamp_deps' target,
which the Visual Studio generators turn into two extra projects per
target in the generated solution.
Attach the autogen custom command to the origin target instead. The
custom command still carries the depfile, and the dependencies of the
origin target provide the ordering that
'<ORIGIN>_autogen_timestamp_deps' provides otherwise, because MSBuild
builds all referenced projects before any step of the referencing
project.
Use the conditions of the PRE_BUILD event, so that the
'<ORIGIN>_autogen' target keeps existing wherever it existed before
depfiles were enabled for the Visual Studio generators. In particular,
projects that name the target in add_dependencies() keep working.
Ninja and the Makefile generators keep the separate targets. Extra
targets have no cost for them, and '<ORIGIN>_autogen' has always existed
there.
The Xcode generator gained the same two targets per origin target in
4.4, but attaching the custom command there needs some more thoughts on
the per-config timestamp file first: Xcode rejects targets whose sources
vary by configuration, and with AUTOGEN_BETTER_GRAPH_MULTI_CONFIG the
timestamp file is per configuration.
Fixes: #28034Fixes: #28033
Propagates variables set in enable_language() logic up variable scopes
so that the language can be used by targets in the ancestor directories.
Works through block() and function() scopes as well. The
add_subdirectory() call can be thought of as the effective call site for
enabling the language. The same holds for endblock() and the actual
function call.
Adds a policy CMP0220 to control this behavior. As the language is
"enabled" at each ancestor scope, the policy is checked. If OLD, the
language is not enabled at this scope and the ones above.
Closes: #27881#27508#27389
Related: #26751#27564
They don't support setting compiler via this variable, they use the
toolsets, so you could switch the compiler by choosing another toolset.
Closes: #21644
Extend the test_prep/<test> and test_prep/all build targets, generated
from add_test(BUILD_DEPENDS) when CMAKE_TEST_BUILD_DEPENDS is enabled, to
the Makefile generators. Previously only the Ninja and FASTBuild
generators provided them.
Resolve each test's dependencies in a shared layer so all command-line
generators consume one result. cmTestGenerator now filters target
dependencies to build-system targets and records, for each file
dependency, the single target that produces it as a primary
custom-command output (cmGlobalGenerator::FindOutputOwningTarget). The
Makefile generators emit phony rules in CMakeFiles/Makefile2 depending on
<target>.dir/all, with top-level forwarding rules. Sharing the
resolution also stops Ninja and FASTBuild from emitting a dead test_prep
edge for a non-buildable (e.g. INTERFACE) BUILD_DEPENDS target.
On the Makefile generators a file dependency that no single target
produces, and a test whose name contains ':', cannot be expressed as a
recursive-make rule and are reported with a warning and skipped.
Fixes: #27879
Rename the compiler id from commit ee76398d23 (IBMLLVMFlang: Add support
for this compiler, 2026-05-25) to mention only the direct vendor, IBM.
Issue: #27863
2e214f0a5b ctest: allow CTest Script variables to be set via the command-line
21b9c20592 ctest: extend config mapping to include script-only variables
68489471a6 ctest: refactor SetCMakeVariables to use a mapping table
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !12060
Add `test_prep/<test_name>` convenience targets to the ninja generator
to build dependencies of tests, and `test_prep/all` to build the dependencies
of all tests.
Build dependencies of a test include:
- Executables directly invoked by test `COMMAND`.
- Targets mentioned in generator expressionf os test `COMMAND`.
- Anything explicitly listed with the new `BUILD_DEPENDS` argument of `add_test`.
Issue: #27613
This was left out of commit b7a5f2732d (PellesC: Add minimal support for
this C compiler, 2026-04-03) because the implementation was not usable
in general. It is now.
Closes: #21536
Co-authored-by: Serguei E. Leontiev <leo@sai.msu.ru>
72e7305c3e Diagnostics: Handle CMAKE_{WARN,ERROR}_DEPRECATED
be057c5a01 cmVariableWatch: Use enum for access type
cba542f32c cmake.cxx: Organize includes
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !11948
Update documentation for aforementioned variables, as their use is
deprecated under the new diagnostic system. Introduce a policy which
reintroduces their use to control specific deprecation diagnostics if
the policy is not NEW.
Note that this means there is NO synchronization between the variables
and the new diagnostic state.
Make diagnostics into Sphinx objects so that they can be more readily
cross-referenced. (This is also needed to enable --help-diagnostic.)
Update various places that can make use of the same. Significantly
expand the documentation on controlling diagnostics.
Add a `CTEST_TEST_COVERAGE_TOOL` variable to tell CTest to integrate
with `llvm-cov` source-based code coverage by setting the
`LLVM_PROFILE_FILE` environment variable for each test.
Issue: #26932
39a56136a3 Diagnostic: Add warn or error on absolute install paths
fd76089631 cmInstallFileSetGenerator: Only support per config Destination.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !11882
Add `-Winstall-absolute-destination` diagnostic to warn or
error when an install command has an absolute destination.
This allow projects to enforce the best practice of not allowing
absolute install DESTINATIONS.
Add policy CMP0215 to emit `.swiftmodule` from a dedicated `-emit-module`
build edge for importable Swift targets in the Ninja generator.
Downstream targets can begin compiling as soon as the module interface
is ready, overlapping with upstream object compilation and linking.
When CMP0215 is NEW and CMP0157 is NEW, separate module emission is
enabled by default. The `Swift_SEPARATE_MODULE_EMISSION` target
property (initialized by the `CMAKE_Swift_SEPARATE_MODULE_EMISSION`
variable) can override this per target.
The compile edge still passes `-emit-module` so that swiftc continues
to produce `.swiftdoc`; only the `.swiftmodule` output moves to the new
edge.
Also fix swiftmodule dependency edges in cmNinjaNormalTargetGenerator
to use IsLanguageUsed instead of GetLinkerLanguage, so C/C++ targets
whose linker language propagated to Swift do not produce spurious
implicit dependencies.
Closes: #27748
99318e49b9 Help: Mention when diagnostics were added
daec98ba61 Diagnostics: Fix passing diagnostic state to try_compile
e0b0ac4295 Diagnostics: Overhaul warnings in cmake-gui
ca5d569524 Diagnostics: Switch state to new system
618c074a8c Diagnostics: Use categories for presets
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !11855
Add an additional state to the cmake instance to track diagnostics. Use
this to initialize any new/reset states we create so that other contexts
will inherit the diagnostic state from presets / command-line options.
Modify the front-end to map presets and -W command-line options to
manipulation of this new diagnostic state. Remove old members for
storing diagnostic state. Rework how diagnostic state is persisted.
Deprecate old, non-standard spellings for manipulating diagnostics.
Deprecate old 'dev' spelling for CMD_AUTHOR.
Note that this is a work in progress. Messaging has not yet been
updated, so the new state is not yet being used to control diagnostics,
and some of the logic to update the old state has been stripped (and
will eventually be removed entirely). Backward compatibility support for
the deprecated CMAKE_{WARN,ERROR}_DEPRECATED variables is only partially
implemented. The GUI's interface for manipulating warnings is partially
broken and needs to be overhauled. These tasks are being done in
separate commits in order to minimize review burden and keep the changes
per commit / per merge request more manageable.
Add a new CMake domain role for referencing fields in CMake presets.
This has two main purposes. First, it replaces generic references (which
were excessively long and required explicit titles) and acts as an
improved version of the `ref` role by allowing the always-present
`CMakePresets.` prefix to be elided. Second, unlike generic references
which silently degrade to broken links that are only caught by
`linkcheck`, broken references are flagged immediately in regular Sphinx
builds. Therefore, this both improves presentation by bringing line
lengths back under control, and reduces errors by making bad references
immediately detectable.
There is also a small change in rendering, as field references are now
rendered as literals. This is consistent with how fields are mentioned
in prose when they are not linked.
Tyler Yankee
15daksh-2003
Brad King
Aiden Woodruff
Joerg Bornemann
Robert Maynard
Arha Gatram
Vito Gamberini
leha-bot
Martin Duffy
Kelvin Li
Zack Galbreath
Matthew Woehlke
Ben Boeckel
Joseph Snyder
Roman Lavrov
Marc Chevrier
Trung Nguyen