cmReadGccDepfile() calls cmSystemTools::CollapseFullPath(), which
is not thread safe due to internal caching. Serialize calls to
cmReadGccDepfile() in autogen to avoid thread safety issues.
Fixes: #22014
Since commit f034b0f663 (CMake compilation: do not use compiler
extensions, 2020-03-14, v3.18.0-rc1~494^2), some sources explicitly
enable needed system APIs on some platforms using definitions like
`_POSIX_C_SOURCE` and `_XOPEN_SOURCE`. Drop the definitions for
OpenBSD, which provides the POSIX APIs by default.
Refactoring in commit bdc40742bd (CMakeDetermineCompilerId: Test without
COMPILER_ID_FLAGS if REQUIRE_SUCCESS, 2021-02-27, v3.20.0-rc3~6^2) added
an extra macro layer through which flag strings are passed. That caused
an extra level of argument re-parsing, and broke flags with backslashes.
Pass flags to the helper macro through variable names instead.
Fixes: #22041
Update the change from commit f7f3d8987a (FindBLAS: Add dependency of
OpenBLAS on OpenMP for BLA_STATIC, 2020-11-10, v3.20.0-rc1~492^2):
* If C is not enabled, find CXX OpenMP libraries instead.
* Do not use BLA_STATIC's custom CMAKE_FIND_LIBRARY_SUFFIXES for OpenMP.
It can break projects that already call `find_package(OpenMP)` and
expect a shared library. Whether OpenMP is static is orthogonal to
whether BLAS is static.
Fixes: #22039
Issue: #16221
Since commit 2c71d051fa (Makefiles Generators: use compiler for
dependencies generation, 2020-10-18, v3.20.0-rc1~392^2) we invoke `nvcc`
for CUDA < 10.2 a second time in order to generate a depfile. When
`CMAKE_CUDA_HOST_COMPILER` is set, the second invocation is missing its
`-ccbin=` option, even after refactoring in commit 8981e3e7cc
(NVIDIA-CUDA: rely on new capabilities for deps generation, 2020-12-02,
v3.20.0-rc1~362^2).
Ideally we should move the `-ccbin=` flag into `Compiler/NVIDIA-CUDA`,
but that will add `CMAKE_CUDA_HOST_COMPILER` support on Windows in
command-line generators but not the Visual Studio generators.
For now, add the flag to the depfile command specifically.
Fixes: #22037
Refactoring in commit b12aec6c8d (BinUtils: prefer bin utils matching
the compiler version extension, 2020-12-11, v3.20.0-rc1~171^2)
accidentally leaked a `TOOL` variable. Name temporary variables with a
private prefix.
Fixes: #22035
CMake's test suite is sensitive to machine load and can cause spurious
timeouts. To acknowledge this, prevent CTest from spawning tests into a
busy machine.
c3d0b25514 UseSWIG: Transform swig depfile to match Ninja generator paths
8c525d7e16 UseSWIG: Run using policy settings from includer
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5983
Since CMake 3.19, we no longer support macOS SDKs older than 10.5,
which corresponds to Xcode 3. Supporting older Xcode versions for
device platforms is also not realistic. We therefore expect the -rpath
linker option should always be supported now.
When targeting iOS, tvOS or watchOS, the previous disabling of -rpath
support meant that the install_name_dir of shared libraries and
frameworks was unable to use @rpath. This resulted in embedding
absolute paths for their install_name. When they were embedded in an
app bundle, this would cause the app to fail at runtime. By enabling the
-rpath linker option, the default install_name_dir is now @rpath for these platforms, which results in binaries that do work at runtime.
Fixes: #20036
The NVHPC compiler does not have any implicit link directories that can
be used to detect `CMAKE_LIBRARY_ARCHITECTURE`, but it does have
implicit object files. Extract implicit object file paths from link
lines and check them for the `CMAKE_LIBRARY_ARCHITECTURE` pattern.
Issue: #22024
The change in commit 657fc3a9a7 (CMakeDetermineCompilerABI: Parse
library arch from versioned paths, 2021-02-03, v3.20.0-rc1~40^2) caused
`CMAKE_LIBRARY_ARCHITECTURE` to be populated on non-multiarch platforms
if their compilers happen to use `$arch/$version` library directories.
Revert the use of versioned library paths.
Fixes: #22024
Since commit 89b01b04fa (UseSWIG: use swig tool to generate
dependencies, 2021-01-12, v3.20.0-rc1~120^2) we use a tool-provided
depfile to extract dependencies under the Ninja generator. Enable
`CMP0116` to ensure depfile paths are translated to match what the Ninja
generator writes to the build manfiest.
Fixes: #22029
Backport commit de7f0aa6c0 (UseSWIG: avoid spurious policy warnings,
2021-02-11) to the 3.20 release branch. Projects need to be able to
control policies.
Issue: #22029
Kyle Edwards