The helpers added by:
* commit 37bc3400cd (CMakePackageConfigHelpers: Add
generate_apple_platform_selection_file(), 2023-11-03)
* commit 4ac5a2f866 (CMakePackageConfigHelpers: Add
generate_apple_architecture_selection_file(), 2023-12-19)
were worded in terms of including package configuration files, but the
actual functionality is to include files *from* package configuration
files. The included files do not themselves need to be usable as
package configuration files.
Rename the options and clarify the documentation accordingly.
Issue: #25262
Issue: #25516
We represent stub libraries, e.g., for CUDA, using imported `SHARED`
library targets with only `IMPORTED_IMPLIB`, and no `IMPORTED_LOCATION`,
to indicate that the stub file is meant only for linkers and not dynamic
loaders. See commit 7351d590ee (cmTarget: Add a way to represent
imported shared library stubs, 2023-07-17, v3.28.0-rc1~344^2) and commit
fc6508921c (cmComputeLinkInformation: Restore soname lookup for
non-imported targets, 2023-12-05, v3.28.0~4^2).
If a shared library is linked to a stub, it has a `NEEDED` field
populated with the `SONAME` found in the stub. When a dependent target
links to such a shared library, some linkers want to find a library file
on disk and load it to see what symbols it provides. This is necessary
for linkers that enforce `--no-allow-shlib-undefined`. On hosts with
only the stub library installed, e.g., with only the CUDA toolkit
development package, the real runtime library corresponding to the
stub's `SONAME` may not even exist, so no `-rpath-link` flag can help
linkers find it. Pass the stub library to linkers explicitly so they
can find it without searching.
459d1cc095 Tests: Verify that linker tool is detected and identified where expected
6aec4739c1 LinkerId: Record detection steps to configure log
ba5f8dbba3 LinkerId: Use empty string for unknown linker id
6cbd0658c5 LinkerId: Match Apple linker on all Apple platforms
9324668517 LinkerId: Fix detection of GNU linker id without parenthesis in version output
37bc148870 LinkerId: Fix detection of linker tool without path
6e527c2d38 LinkerId: Fix detection of linker tool for Clang on OpenBSD
455aed3061 LinkerId: Fix detection of linker tool for MSVC
...
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !9086
Since commit c26c6ac488 (Link Step: compute effective linker used by the
compiler, 2023-05-27) we used `UNKNOWN` if the linker id is not known.
This convention is not used elsewhere, and logic using the linker id
is easier when `if(CMAKE_C_COMPILER_LINKER_ID)` is false on unknown id.
`cmake_determine_linker_id` is only used for macOS because Apple device
platforms set `_CMAKE_FEATURE_DETECTION_TARGET_TYPE` to `STATIC_LIBRARY`,
but we might as well prepare for them anyway.
Previously we matched an entire build system output line and then
extracted the relevant portion in a separate brittle step. Match
it directly. Use the `CMAKE_LINKER` value directly if available.
We do not use `-Wl,-v` on SunOS because not all GNU deployments use the
`collect2` helper, and those that do do not always print the underlying
`ld` command line. Parse the `--with-ld=` option as a fallback.
When IBM XL is used as the host compiler for nvcc, it generates a
comma-separated link line. Parse the `exec:` line syntax separately, as
was done in commit b5f20da94d (CMakeParseImplicitLinkInfo supports comma
separated link lines, 2019-08-23, v3.16.0-rc1~181^2).
Xcode has been reported to not work at all with this when
ExternalProject projects share download files.
Revert commit 872daff159 (ExternalProject: declare byproducts for the
download step, 2023-09-21, v3.28.0-rc1~27^2) pending further
investigation.
Fixes: #25525
Since commit f73a5bfaa9 (UsePkgConfig: Replace exec_program() with
execute_process(), 2023-07-24, v3.28.0-rc1~321^2~6), trailing whitespace
was introduced into libraries linked, which violates CMP0004.
Previously `find_package(CURL COMPONENTS HTTP)` failed because the
`CURL_SUPPORTED_PROTOCOLS` variable returned by pkg-config is
a command-line fragment, but we need a semicolon-separated list.
The template added by commit 37bc3400cd (CMakePackageConfigHelpers: Add
generate_apple_platform_selection_file(), 2023-11-03) is specific to
Apple platforms. Give it an Apple-specific name.
If the working directory didn't exist, the old message just says:
Error running test executable.
Path: '<Path to test executable>'
Result: No such file or directory
Output:
This leads the user to the conclusion that the test executable doesn't
exist, which isn't true. Make the true cause visible by reporting the
working directory in the error message.
04959e0285 Tests: Verify CUDA::cupti existence on a subset of machines
09a3c8b46b CUDAToolkit: Correctly search all include paths from compiler
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !9072
04959e0285 Tests: Verify CUDA::cupti existence on a subset of machines
09a3c8b46b CUDAToolkit: Correctly search all include paths from compiler
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !9072
Splitting the Swift build into an object build and a separate link step,
instead of building and linking in one step. The immediate benefit is
LSP support because we are able to emit compile-commands for Swift files
now. Additionally, it is possible to specify flags to the compile step,
enabling folks to emit C and C++ headers from their Swift builds for
C/C++ interop, without needing custom commands. Eventually, this gives
us a path toward working object libraries.
Object Libraries:
- Object libraries don't work today because CMake doesn't emit targets
for object libraries into the Ninja build file.
- tl;dr: Object libraries work if they aren't WMO. Still need work to
make WMO'd object libraries work.
Object libraries still don't completely work with this patch because,
while we emit the targets, the `TARGET_OBJECTS` generator expression
expansion has a separate mechanism for determining what the names of
the objects are based on the input source files, so targets that
depend on an object library built with a whole-module optimization
will depend on objects based on the name of the source file instead
of the actual emitted object file.
These features require being able to accurately model wholemodule builds
though, because we actually need to track object files and WMO affects
what objects are emitted. For that, we require CMP0157 use the NEW
policy. When it's OLD, we have to fall back on the old behavior and
cannot provide object libraries or the compile-commands for LSP.
Issue: #25308
Update the list of known versions.
Run the command
cmake -DBOOST_DIR=/path/to/boost_1_84_0 \
-P Utilities/Scripts/BoostScanDeps.cmake
to extract dependencies from the 1.84.0 source tree.
They are the same as 1.83's dependencies, so just update
the version check for warning about newer versions.
Fixes: #25499
Brad King