This patch changes the default linker for `clang` on PowerPC Linux to `lld`. Here is a summary of the expected behaviour before and after this patch: To use `lld` as the linker before this patch: - build with `lld` in `LLVM_ENABLE_PROJECTS` - build with `-DCLANG_DEFAULT_LINKER=lld` To use `lld` as the linker after this patch: - build with `lld` in `LLVM_ENABLE_PROJECTS` To use `ld` as the linker before this patch: - default behaviour To use `ld` as the linker after this patch: - build with `-DCLANG_DEFAULT_LINKER=<PATH_TO_LD>` Note: After this patch, if you build `clang` for PowerPC Linux and `lld` is not included in `LLVM_ENABLE_PROJECTS`, the built compiler will report an error during linking because it will not be able to find `ld.lld`. Therefore, anyone using the default behaviour before this patch will need to modify their build configuration to either: - include `-DCLANG_DEFAULT_LINKER=<PATH_TO_LD>` to continue using `ld` or - `lld` in `LLVM_ENABLE_PROJECTS` to switch to `lld`.

This patch changes the default linker for `clang` on PowerPC Linux to `lld`. Here is a summary of the expected behaviour before and after this patch: To use `lld` as the linker before this patch: - build with `lld` in `LLVM_ENABLE_PROJECTS` - build with `-DCLANG_DEFAULT_LINKER=lld` To use `lld` as the linker after this patch: - build with `lld` in `LLVM_ENABLE_PROJECTS` To use `ld` as the linker before this patch: - default behaviour To use `ld` as the linker after this patch: - build with `-DCLANG_DEFAULT_LINKER=<PATH_TO_LD>` Note: After this patch, if you build `clang` for PowerPC Linux and `lld` is not included in `LLVM_ENABLE_PROJECTS`, the built compiler will report an error during linking because it will not be able to find `ld.lld`. Therefore, anyone using the default behaviour before this patch will need to modify their build configuration to either: - include `-DCLANG_DEFAULT_LINKER=<PATH_TO_LD>` to continue using `ld` or - include `lld` in `LLVM_ENABLE_PROJECTS` to switch to `lld`.

This patch changes the default linker for `clang` on PowerPC Linux to `lld`. Here is a summary of the expected behaviour before and after this patch: To use `lld` as the linker before this patch: - build with `lld` in `LLVM_ENABLE_PROJECTS` - build with `-DCLANG_DEFAULT_LINKER=lld` To use `lld` as the linker after this patch: - build with `lld` in `LLVM_ENABLE_PROJECTS` To use `ld` as the linker before this patch: - default behaviour To use `ld` as the linker after this patch: - build with `-DCLANG_DEFAULT_LINKER=<PATH_TO_LD>` Note: After this patch, if you build `clang` for PowerPC Linux and `lld` is not included in `LLVM_ENABLE_PROJECTS`, the built compiler will report an error during linking because it will not be able to find `ld.lld`. Therefore, anyone using the default behaviour before this patch will need to modify their build configuration to either: - include `-DCLANG_DEFAULT_LINKER=<PATH_TO_LD>` to continue using `ld` or - include `lld` in `LLVM_ENABLE_PROJECTS` to switch to `lld`.