Since commit c2dc7e0f53 (Help: Convert genex documentation to sphinx
domain objects, 2021-01-15) we can use `:genex:` cross-references to
link to named generator expressions. Update some places to do this.
This is meant to demonstrate the capability, not as a comprehensive
sweep.
In commit f034b0f663 (CMake compilation: do not use compiler extensions,
2020-03-14, v3.18.0-rc1~494^2) we explicitly defined `_POSIX_C_SOURCE`
to ensure availability of POSIX APIs even when compiler extensions are
not enabled. Update the code to avoid redefining `_POSIX_C_SOURCE` if
it is already defined. This occurs when building our release binaries
as configured in `Utilities/Release/linux`, where we define
`_POSIX_C_SOURCE` explicitly on the compiler command line.
In 315a200f0c (FindGit: Cache the GIT_EXECUTABLE version for the
current run, 2021-01-20), the GIT_VERSION_STRING was meant to be
cached after the first time it was computed for a given GIT_EXECUTABLE
location. That logic assumed GIT_VERSION_STRING would be visible in
the current scope, but it might not be. The global property alone is
enough to check whether the version has been determined previously,
so don't switch the logic based on whether GIT_VERSION_STRING is
defined or not.
Relates: #21703
The cost of setting up and executing a separate sub-build to do the
download, update and patch steps required for FetchContent population
can be significant with some platforms and CMake generators. Avoid the
sub-build altogether by invoking the step scripts directly.
Previously, if no generator was set (e.g. population was being done in
script mode), a generator needed to be available on the default PATH.
Since we no longer use a sub-build, this restriction is also now gone.
Fixes: #21703
The mkdir, download, update and patch steps are used by
FetchContent during the configure phase of the main build. Because
these steps need a target, this has so far required a sub-build to be
set up. The changes here factor out the preparation of the scripts
from the creation of the targets, allowing future work to leverage these
steps without a sub-build (see #21703).
As part of the refactoring, some rationalisation of the stamp files,
repository info files and script names was done to make things more
consistent between download methods and step implementations.
Every download method now records its own specific repository info
in a file and that file is a dependency of the download step. The source
directory is also written to that file, so if the SOURCE_DIR changes, the
download will be retriggered (the existing implementation fails in this
scenario). Each download method now also has just one driver script
that implements the whole step (it may pull in other scripts to do its
task though). The patch step gained support for USES_TERMINAL as
a result of generalising the implementation for custom commands.
Fixes: #21748
Teach CMake how to extract `CMAKE_<LANG>_LIBRARY_ARCHITECTURE` from
versioned paths such as `/usr/lib/gcc/x86_64-linux-gnu/9`. These kind of
paths are generated by NVHPC compilers.
Documentation updates in commit 02f527c66a (Find: Provide global
controls for the `NO_[]_PATH` call options, 2019-06-12,
v3.16.0-rc1~541^2) accidentally switched the `find_library`
documentation to mention `INCLUDE` where it should be `LIB`.
While at it, update `find_file` and `find_path` to mention
`INCLUDE` and `PATH` in the order they are considered.
24f3388fa4 curl: Set build options the way we need for CMake
426ef61cc8 Merge branch 'upstream-curl' into update-curl
076b3219f5 curl 2021-02-03 (2f33be81)
0341888c00 curl: Update script to get curl 7.75.0
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5767
5389bb4274 Xcode: Don't hard-code SDK-provided implicit framework search paths
df08f8df30 cmComputeLinkInformation: Fix misspelt private variable name
375b307bae Apple: Fix linking to frameworks that do not exist until build time
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5760
5389bb4274 Xcode: Don't hard-code SDK-provided implicit framework search paths
df08f8df30 cmComputeLinkInformation: Fix misspelt private variable name
375b307bae Apple: Fix linking to frameworks that do not exist until build time
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5760
Brad King