CUDA 12.8 deprecated support for compute architectures below 75.
Presumably support will be removed from a future version of the
CUDA Toolkit.  Jobs using such a future version of CUDA will not
be able to compile support for CUDA architectures below 75, so
they will not be able to run on older hardware.  In preparation,
our CI runners now have `cuda-arch-#` tags for the architectures
they support.  Jobs may then be tagged with the minimum architecture
on which they can run.

Tag each job with the highest of the following requirements:

* Most of CMake's tests use the CUDA compiler's default architecture,
  which is based on the version the CUDA toolkit.

* For Clang we currently select architecture 52 if supported by the
  CUDA toolkit, even if that toolkit's NVCC defaults to an older arch.

* The `CudaOnly.Architecture` test uses a specific architecture
  configured by each CI job.

CUDA 12.8 deprecates architectures below 75.  Presumably a future
version will remove it.  Prepare infrastructure to avoid relying on
hard-coded arch 52 in this test.

CUDA 12.8 deprecated support for compute architectures below 75.
Presumably support will be removed from a future version of the
CUDA Toolkit.  Jobs using such a future version of CUDA will not
be able to compile support for CUDA architectures below 75, so
they will not be able to run on older hardware.  In preparation,
our CI runners now have `cuda-arch-#` tags for the architectures
they support.  Jobs may then be tagged with the minimum architecture
on which they can run.

Tag each job with the highest of the following requirements:

* Most of CMake's tests use the CUDA compiler's default architecture,
  which is based on the version the CUDA toolkit.

* For Clang we currently select architecture 52 if supported by the
  CUDA toolkit, even if that toolkit's NVCC defaults to an older arch.

* The `CudaOnly.Architecture` test uses a specific architecture
  configured by each CI job.

CUDA 12.8 deprecates architectures below 75.  Presumably a future
version will remove it.  Prepare infrastructure to avoid relying on
hard-coded arch 52 in this test.

Brad King authored 5 days ago and Kitware Robot committed 5 days ago

6e63080d macOS: Restore RPATH entry for libraries linked from /usr/local/lib
430174e6 CMakeDetermineCompilerABI: Comment implicit link directory exclusion

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10663

Brad King authored 5 days ago and Kitware Robot committed 5 days ago

cd4e72ca Normalize PWD environment variable before using it

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !10659

Since commit 7b195312 (macOS: Do not pass any SDK/-isysroot to
compilers by default, 2024-11-06, v4.0.0-rc1~511^2) our default
invocation of compilers targeting macOS no longer passes `-isysroot`.
Without that, Xcode's compilers search `-L/usr/local/lib` by default
even though the macOS dynamic loader does not.  Since `/usr/local/lib`
is not a fully-implemented implicit link directory, exclude it from our
detected `CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES` so that our generators
do not suppress `RPATH` entries for dependencies in that directory.

Fixes: #26867

In commit 5aed3ee4 (cmSystemTools: Add GetLogicalWorkingDirectory,
2024-10-28, v4.0.0-rc1~528^2~6) we incorrectly trusted `PWD` to be a
normalized path so long as its realpath matches the current working
directory.

Fixes: #26870

Brad King authored 6 days ago and Kitware Robot committed 6 days ago

2e9648e0 Ninja generator: restore correct encoding for policy CMP0181=OLD

Acked-by: Kitware Robot <kwrobot@kitware.com>
Tested-by: buildbot <buildbot@kitware.com>
Merge-request: !10645

Fixes: #26857

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

1fb7067b Help: Add 4.0 release note about file path case sensitivity on Windows

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10639

Since KWSys commit `4feb470ab` (SystemTools: Remove GetActualCaseForPath
from CollapseFullPath, 2024-10-23), imported by commit ede7f2af (KWSys
2024-10-24 (e1acde2e), 2024-10-24, v4.0.0-rc1~589^2~1^2), the KWSys
`CollapseFullPath` function that we use to normalize source file paths
no longer looks up the on-disk case of file paths.  This change was
intentionally made to reduce unnecessary disk accesses.  The change may
affect Windows-only projects that were never built on a case sensitive
filesystem.  Call out the change in the 4.0 release notes.

Issue: #26854

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

c69add95 Help: Add note about /usr/local/include on macOS without CMAKE_OSX_SYSROOT

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10636

Issue: #19180

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

2e59cee9 FindXCTest: Fix test module generation for Xcode 16
c653c1aa FindXCTest: Pass -bundle_loader linker flag for test module more reliably

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10573

In Xcode 7.3 and above, the `TEST_HOST` setting causes Xcode to
implicitly place the test module inside the executable bundle regardless
of the module's own location settings.  Since commit a364d251 (Xcode:
Fixup XCTest bundle location for Xcode 7.3, 2016-03-25, v3.5.2~6^2) we
explicitly tell CMake to put the test module in the same location so
that generator expressions used by `xctest_add_test` agree with where
Xcode actually puts it.  In Xcode 16 and above, our explicit location
settings for the test module conflict with Xcode's `TEST_HOST` rules,
causing errors about multiple commands producing the same path.

Fix this by dropping CMake's explicit location for the test module
unless needed to match a project-specified location for the testee.
Instead, teach `xctest_add_test` to express the xctest module location
selected by `TEST_HOST` by using generator expressions referencing the
testee bundle.

Fixes: #26301
Fixes: #26514

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

2164da0a Help: Document CMAKE_OSX_SYSROOT default change in 4.0

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10623

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

d736dafa Merge branch 'backport-3.31-apple-CoreFoundation-headers'
42390e7a Source: Include specific CoreFoundation headers instead of umbrella header
14ffd1cc cmXCodeObject: Drop unused CoreFoundation header

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10616

42390e7a Source: Include specific CoreFoundation headers instead of umbrella header
14ffd1cc cmXCodeObject: Drop unused CoreFoundation header

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10616

Sergey Fedorov authored 2 weeks ago and Brad King committed 1 week ago

Some CoreFoundation headers included by the umbrella header, which we do
not need, use syntax that GCC does not support.  Avoid including them.

GCC-Issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115880

It has not been needed since commit d250b677 (cmGlobalXCodeGenerator:
Adopt pbxproj object id generation, 2021-01-06, v3.19.3~4^2~2).

In commit 7b195312 (macOS: Do not pass any SDK/-isysroot to compilers
by default, 2024-11-06, v4.0.0-rc1~511^2) we forgot to update the
documentation of `CMAKE_OSX_SYSROOT`.

Fixes: #26846

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

58054610 cmSystemTools: Simplify call to FindProgram for our own executable
db0e2574 cmSystemTools: Restore FindProgram look-up of on-disk case on Windows
5d700abd Source: Simplify FindProgram calls

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10620

aa64d448 macOS: Define _DARWIN_C_SOURCE in more sources

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10619

Brad King authored 1 week ago and Kitware Robot committed 1 week ago

f183631a Merge branch 'backport-3.31-apple-posix' into apple-posix
aa64d448 macOS: Define _DARWIN_C_SOURCE in more sources

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10619

Remove the unnecessary `FindProgramPath` wrapper.  Call the KWSys
`FindProgram` directly, without our CMake-specific wrapper, since
we follow-up with a `ToNormalizedPathOnDisk` anyway.

KWSys's `FindProgram` no longer looks up the actual case on disk.  This
behavior change was inherited from the change to `CollapseFullPath`.
Extend commit 773b75e4 (cmake: Explicitly look up on-disk case of
input paths on Windows, 2024-10-23, v4.0.0-rc1~589^2) to cover this by
wrapping `FindProgram` in a CMake-specific layer.

Issue: #20214

Remove defaulted arguments.  Remove unnecessary `.c_str()`.

Sergey Fedorov authored 2 weeks ago and Brad King committed 2 weeks ago

Restore Darwin APIs removed by `_POSIX_C_SOURCE`.

Brad King authored 2 weeks ago and Kitware Robot committed 2 weeks ago

2f9211b4 Tests: Isolate RunCMake.LinkWarningAsError from -Werror flags in environment

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10587