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* Link Step: compute effective linker used by the compilerMarc Chevrier2023-10-241-0/+4
| | | | | | | | | | | | | | | Extract the effective linker during the computation of implicit artifacts delivered by the compiler to the linker. Define various variables describing the linker: * CMAKE_<LANG>_COMPILER_LINKER * CMAKE_<LANG>_COMPILER_LINKER_VERSION * CMAKE_<LANG>_COMPILER_LINKER_ID * CMAKE_<LANG>_COMPILER_LINKER_FRONTEND_VARIANT This is complementary to feature introduced by commit 96a953b1ed (Add options to specify linker tool, 2023-09-27). Fixes: #17596, #18209, #25344
* Add options to specify linker toolMarc Chevrier2023-10-131-0/+2
| | | | | | | | | | | | | | | | | | Offer the capability, through variable `CMAKE_LINKER_TYPE`, as well as the target property `LINKER_TYPE` to specify which linker must be used. The implementation of this capability is specified by variables specific to the language and linker type: `CMAKE_<LANG>_USING_LINKER_<TYPE>`. Some definitions are provided as part of `CMake`. For example, to select the `LLVM` linker rather than the standard one, the type `LLD` should be specified through the variable `CMAKE_LINKER_TYPE`. And, on `Apple`, `Linux` and some environments on `Windows`, the variable `CMAKE_<LANG>_USING_LINKER_LLD` has value `-fuse-ld=lld`. And for `Windows` environments based on `MSVC`, where the linker is used directly, the tool `lld-link.exe` will be used rather than `link.exe`. Fixes: #19174, #24254, #24990
* Link Step: ensure the correct linker is used for depfile configurationMarc Chevrier2023-05-281-1/+1
| | | | This is related to MR !8443.
* Link step: use linker dependency linker fileMarc Chevrier2023-05-031-0/+1
| | | | | | Based on work done by @ben.boeckel (!8051) Fixes: #22217
* Apple: Handle generation and comsuption of text-based stubs (.tbd files)Marc Chevrier2023-03-011-0/+1
| | | | Fixes: #24123
* CompilerID: Compiler extensions default detectionRaul Tambre2021-09-281-0/+1
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* ObjectiveC: Add C17 and C23 supportGregor Jasny2021-06-111-0/+2
| | | | Issue: #22297
* CMakeDetermineCompilerABI: Detect byte order as part of checkBrad King2020-11-041-0/+1
| | | | | | | We already detect `sizeof(void*)`. Detect the byte order as part of the same check. Issue: #21392
* Languages: Add support for Objective-CSteve Wilson2019-09-281-0/+69
Add entries in Modules and Modules/Platform to support Objective-C compiler determination and identification. Add Modules to check Objective-C compiler flags, source compilations, program checks, etc... Use OBJC as the designator of the language, eg: project(foo OBJC) Add various tests for Objective-C language features. Add tests to preserve C++ handling of .m and .mm files when OBJC is not a configured language. Co-Authored-By: Cristian Adam <cristian.adam@gmail.com>