Previously were checking for the `__CRAYXC` and `__CRAYXE` predefined
macros. These macros reflect the platform that the compiler wrapper is
running on, i.e. Cray XC and Cray XE machines. They are not defined on
other platforms such as Apollo80.
Switch to the `__CRAYXT_COMPUTE_LINUX_TARGET` macro. The Cray cc/CC/ftn
wrappers always define this macro on the command line. This macro has
been in use for many years, and is believed to be a reliable way to
detect current and older Cray compiler wrappers.
Fixes: #21904
Refactoring of the ExternalProject and FetchContent modules moved
the commands into CMake scripts. This broke custom commands that
used shell redirection or special build tool variables of the form
$(MakeVar). Undo the sequence of commits that performed this
refactoring and follow-up fixes associated with it.
The following commits are reverted by this change:
4f3d1abbb4 (ExternalProject: Refactor pre-configure steps to support
no-target uses, 2021-02-05)
17e5516e60 (FetchContent: Invoke steps directly and avoid a separate
sub-build, 2021-01-29)
bd876f3849 (FetchContent: Restore patch command support,
2021-02-18)
404cddb7bb (ExternalProject: Fix misuse of IS_NEWER_THAN in
timestamp checks, 2021-02-21)
b0da671243 (FetchContent: Don't update timestamps if files don't
change, 2021-02-18)
Fixes: #21892
In commit bda5e2ac8f (FindMatlab: Only include engine and dataarray
libraries if they are found, 2020-12-11, v3.20.0-rc1~297^2~1) we fixed
the imported target to contain optional libraries only if they are
found. Do the same for `Matlab_LIBRARIES`.
The justification in commit 9ee4a42813 (Cray: Fix Cray compiler
detection on new platforms, 2020-12-01, v3.19.2~26^2) confuses detection
of the CrayPrgEnv with identification of the Cray compiler. The
change regressed detection of the CrayPrgEnv on non-Cray compilers.
Revert it pending further investigation into the original problem.
Fixes: #21894
If more than one content link references the same object, the build
system may launch multiple download processes for the same object
concurrently. Use whichever one finishes first, and discard the others.
Without this, we replace the objects and use the last finisher instead
of the first. This is okay on non-Windows platforms where `rename(2)`
gives reliable atomic replacement. However, on Windows platforms and
NTFS this is less reliable. I've observed `MoveFileEx` somehow cause
another process to get `ERROR_SHARING_VIOLATION` when attempting to read
the destination file. We may be able to improve the `file(RENAME)`
implementation on modern Windows 10 versions, but for ExternalData's use
case it is simpler to just not replace existing objects.
Cray 11.0 adds support for preprocessing with output written to a
specified file (instead of always next to the source). Use it to
enable Cray Fortran with the Ninja generator.
Patch-by: James Elliott
Fixes: #20731
005e2cdfb0 Android: Do not use gold for ndk >= r22
ed7a87f270 Tests: Update RunCMake.Android for NDK r22
4950d35733 Help: Document CMAKE_ANDROID_NDK_VERSION variable
746906242d Android: Detect NDK version number
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5862
005e2cdfb0 Android: Do not use gold for ndk >= r22
ed7a87f270 Tests: Update RunCMake.Android for NDK r22
4950d35733 Help: Document CMAKE_ANDROID_NDK_VERSION variable
746906242d Android: Detect NDK version number
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5862
bdc40742bd CMakeDetermineCompilerId: Test without COMPILER_ID_FLAGS if REQUIRE_SUCCESS
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5863
C11 was made default in LLVM commit ab506adf7d3ced6abcaf42f92de3d6cd15fa19e8,
released in 3.5.2.
C99 was made default in LLVM commit 17f76e04d244c80e70f1c81c94d4524b53d9772d,
released in 2.1. It was flipped a few times between C89 and C99 during the 2.1
cycle, but the C89 default never made it into a release.
C89, C99 flags in LLVM commit ff43821d5380ee38aff421701f1d461242b524ee.
C90 flag in LLVM commit 229ce60fc9983df5f7e83e25fa6b5c0ca4d2b135.
C1x flag in LLVM commit a686b5f8bf7b5a2ab636c0c2de5ad4c174aa33e0.
C11 flag in LLVM commit 6784aeb9ef96e5735850fa7226ed0cb45cb82e75.
Mark C90, C99 full support since 2.1. Might've been possibly a little later,
but source spelunking that much back is difficult.
Mark C11 full support since 3.0, which added _Static_assert in LLVM commit
3d9cbdc3e66e274d5d3cb94ce81a65478d9baae0.
Additional Changes: Rework the documentation of FindIntl
NOTES:
Reorder the REQUIRED_VARS arguments so find_package reports the library
instead of the include directory.
Handle Intl_LIBRARY in the same way how FindIconv handles it in case of glibc.
If the VERSION_VAR argument is an empty string nothing happens.
Fixes: #21857
