Martin Storsjö 4169b5251f [runtimes] [CMake] Fix checks for -Werror when building with incomplete toolchains ... When we add `--unwindlib=none` during the CMake configure phase (to make CMake linking tests succeed before the unwind library has been built for the first time - when bootstrapping a cross toolchain from scratch), we add it to `CMAKE_REQUIRED_FLAGS` to make later CMake tests pass. When the option is added to `CMAKE_REQUIRED_FLAGS`, it gets added to both compilation and linking commands. When --unwindlib=none is added to the compilation command, it causes warnings (about being unused during compilation, as it only affects linking). When all CMake test compilations produce warnings, later CMake tests for `-Werror` fail. Add `--{start,end}-no-unused-arguments` around `--unwindlib=none`, if supported, to avoid unnecessary warnings due to this option. If the CMake requirement is bumped to 3.14, we could use `CMAKE_REQUIRED_LINK_OPTIONS` instead, removing the need for the `--{start,end}-no-unused-arguments` options. (However, do note that `CMAKE_REQUIRED_LINK_OPTIONS` is problematic in combination with `CMAKE_TRY_COMPILE_TARGET_TYPE` set to `STATIC_LIBRARY`; see https://gitlab.kitware.com/cmake/cmake/-/issues/23454.) Differential Revision: https://reviews.llvm.org/D124377		2022-05-13 00:29:51 +03:00
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CMakeLists.txt	[runtimes] [CMake] Fix checks for -Werror when building with incomplete toolchains	2022-05-13 00:29:51 +03:00
Components.cmake.in
Tests.cmake.in	Generalize "check-all" umbrella targets, use for check-clang-tools	2022-05-06 12:30:49 +02:00