Since commit e3895f4a8b (Linking: Preserve nested LINKER: prefixes as
written, 2024-09-17, v3.31.0-rc1~60^2) we may increment an iterator past
the end. Revise logic to avoid that.
Fixes: #26499
Previously LINKER:,-Xlinker and -Wl, options nested inside LINKER:
prefixes would be transformed to separate prefixed options.
This is confusing and undocumented behavior, instead preserve these
as written.
Fixes: #26298
Add link flags during the "device compile" step.
Enabled the relevant tests. The disable reasons regarding separable compilation
were outdated and the actual failure case was device link flags support.
Building these targets was already previously disabled in RunCMakeTest.cmake.
Now with us throwing an error for separable compilation during generation on
Clang we also need to stop them from being generated.
In commit a653ca9504 (Tests: Update CUDA tests to work with Clang,
2020-03-27) some tests were conditioned using `CMAKE_CUDA_COMPILER_ID`.
That is not defined when configuring CMake itself, so it accidentally
turned off NVCC-specific CUDA tests altogether. Convert the conditions
to check `CMake_TEST_CUDA` for `Clang` instead. That option is added
explicitly to builds where we want the tests to run, so we can set it to
a value indicating the CUDA compiler vendor.
In commit a653ca9504 (Tests: Update CUDA tests to work with Clang,
2020-03-27) the NVCC-specific `CudaOnly.GPUDebugFlag` test was
accidentally broken by removing a space when appending `-G` to the CUDA
flags. This was covered by the test not running. Restore the space.
Fixes: #20727
properties LINK_OPTIONS and INTERFACE_LINK_OPTIONS are propagated
to the device link step.
To control which options are selected for normal link and device link steps,
the $<DEVICE_LINK> and $<HOST_LINK> generator expressions can be used.
Fixes: #18265
These generator expressions can only be used in link options properties.
These expressions return the arguments respectively for device and host link
step, otherwise return an empty string.
Ensure transitivity over multiple static libraries.
Fixes: bbba701899 (Link properties: must be transitive over private dependency on static library, 2019-12-06)
The following was disallowed:
add_library(iface INTERFACE)
target_link_libraries(iface PUBLIC)
just due to the mention of the `PUBLIC` keyword. Instead, only error if
there are actually `PUBLIC` dependencies specified (and analogously for
other restrictions).
Update tests to expect this new behavior.
Not all of these commands accept non-compilable (i.e., IMPORTED)
targets, so those calls are currently just commented out. If they ever
do start to accept them, the tests should be enabled.
This family enable to manage link flags
Three new properties:
* directory property: LINK_OPTIONS
* target properties: LINK_OPTIONS and INTERFACE_LINK_OPTIONS
Two new commands
* add_link_options(): to populate directory property
* target_link_options(): to populate target properties
Fixes: #16543
Brad King