This allows for a more graceful transition for projects using C++20
without scanner support (e.g., Clang 15 or GCC 13). While newer
compilers will (needlessly) scan, it allows C++20-using projects to use
older compilers without having to set `CMAKE_CXX_SCAN_FOR_MODULES` to
support newer CMake minimum versions.
Fixes: #25357
22da18b995 Fortran: Restore support for TARGET_OBJECTS providing modules
64d9240564 cmComputeLinkInformation: skip over linking to items for object purposes
035302b7e3 cmComputeLinkDepends: also copy the target from object link items
861876b936 Tests/ObjectLibrary: fix comment
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Acked-by: scivision <michael@scivision.dev>
Merge-request: !8923
Continue b665966933 (cmComputeLinkInformation: track OBJECT library
dependencies, 2023-07-22) which added explicitly listed `OBJECT`
libraries to the list of targets which the collator needs to consider.
Now also consider targets which provide objects directly to the target
via a `$<TARGET_OBJECT>` source lists.
Also add tests which use target objects directly and through an
`INTERFACE` library with target objects in its own sources.
Fixes: #25365
C++ module sources should not be included by any other TUs, so their
presence cannot matter for order-only dependencies of the entire target.
Exclude them.
Update CMP0154 to take this into consideration and add tests to the
`CXXModules` suite (which already deals with module support detection).
Prior to 5420639a, execute_process() would open INPUT_FILE, OUTPUT_FILE,
and ERROR_FILE relative to the WORKING_DIRECTORY argument if it was
provided. Restore this behavior for backwards compatibility.
Fixes: #25338
Changing the `timestamp` file to `timestamp_$<CONFIG>` causes some user
projects to break when using Qt versions older than 6.6.
Revert commit fddd0f0443 (Autogen: AUTO*_EXECUTABLE: add support for
per-config values, 2023-06-14, v3.28.0-rc1~96^2~1) pending further
investigation.
Issue: #20074
Revert commit e454314daa (NinjaMultiConfig: Update tests for the new
dependency change, 2023-07-05, v3.28.0-rc1~96^2) because we are about
to revert the change for which it updated tests.
Under CMP0155's NEW behavior, projects that explicitly enable C++20
support with `set(CMAKE_CXX_STANDARD 20)` may also explicitly
disable scanning with `set(CMAKE_CXX_SCAN_FOR_MODULES OFF)`.
We already propagate `CMAKE_CXX_STANDARD` into `try_compile` test
projects, so propagate `CMAKE_CXX_SCAN_FOR_MODULES` too.
Fixes: #25313
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 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>
These are printed by LLVM-based compiler drivers targeting the MSVC ABI.
In our use case for this, `CMAKE_LINKER` may not yet be known, so do
not include it in the test data.
437280b127 cxxmodules: scan C++ sources for imports by default
3cddd11649 Ninja: message about not compiled sources explicitly
068fde1c34 cmGeneratorTarget: use `this->` for method calls
197a6bf171 cxxmodules: rework control logic for scanning regular C++ sources
5eb7bd641a Tests/RunCMake/CXXModules: remove rules file requirement
ff18acc301 CXXModules: remove `EXPERIMENTAL` from C++ module variable names
0c07f39006 cmExperimental: remove the flag for C++ modules
68caec9137 Help: add a manpage for cxxmodule support
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Pavel Solodovnikov <hellyeahdominate@gmail.com>
Merge-request: !8828
Now that scanning support is no longer experimental, the logic for
whether or not to scan C++ 20 sources is now important because all
projects are now exposted to the logic. Make the scanning rules explicit
in the documentation and rework the queries to localize all of the
associated logic.
A policy to handle the ultimate fallback logic will be implemented in a
following commit.
This provides a utility macro which prints out:
- location of the call;
- the expression being evaluated; and
- the value of the expression.
Evaluates to the value of the expression.
Inspired by Rust's `dbg!` macro.
See: https://doc.rust-lang.org/stable/std/macro.dbg.html
Since refactoring in commit 0a5aeaf302 (cmCTestRunTest: Consolidate test
timeout selection logic, 2023-05-04, v3.27.0-rc1~120^2) we accidentally
truncate `--timeout` values to ctest's default `TimeOut`. Fix the
logic to prefer the flag whenever the `TIMEOUT` property is not set.
In combination with the prior refactoring, this also fixes a bug that
caused `--timeout` values of 10000000 seconds or more to be ignored.
Fixes: #23979
Improves the handling of CUDA layouts where we have multiple include
and library directories listed in the output of `nvcc -v`. This
updates both when the CUDA language is enabled or not.
Fixes: #24915
42654cc818 Tests/CXXModules: add tests for modules with include requirements
7217cb78cf Tests/CXXModules: relax line number matching in stderr
b3d1bbbbcc cmExportFileGenerator: relocate include directories for C++ modules
349ff8b080 cmGeneratorTarget: remove not-INTERFACE assertion
681a763425 cmGeneratorTarget: use a character literal
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !8838
3b632f32fa Tests/CXXModules: forward the default build type
5ab6b09691 Tests/CXXModules: fix multi-config and MSVC details
11b62ef118 Tests/CXXModules: add missing `bmi-only` and compiler id fields
5d9631fbdd Tests/CXXModules: fix key set mismatch error messages
86e7fb72cb Tests/CXXModules: use a less generic name for the config
6b940dc590 Tests/CXXModules: replace the object extension as well
1c9f83c8ec Tests/CXXModules: fix error detection propagation
7a4c02cb38 cmGlobalGenerator: factor out messaging for CMP0037
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Acked-by: Pavel Solodovnikov <hellyeahdominate@gmail.com>
Merge-request: !8834
Kyle Edwards