[llvm] r367084 - Fix macOS build after r358716

[Hans Wennborg via llvm-commits]

Merged to release_90 in r368848.

On Fri, Jul 26, 2019 at 7:16 AM Yi Kong via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
>
> Author: kongyi
> Date: Thu Jul 25 22:17:14 2019
> New Revision: 367084
>
> URL: http://llvm.org/viewvc/llvm-project?rev=367084&view=rev
> Log:
> Fix macOS build after r358716
>
> COPYFILE_CLONE is only defined on newer macOS versions, using it without
> check breaks build on systems running legacy OS and toolchain.
>
> Differential Revision: https://reviews.llvm.org/D65317
>
> Modified:
>     llvm/trunk/lib/Support/Unix/Path.inc
>
> Modified: llvm/trunk/lib/Support/Unix/Path.inc
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Unix/Path.inc?rev=367084&r1=367083&r2=367084&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Support/Unix/Path.inc (original)
> +++ llvm/trunk/lib/Support/Unix/Path.inc Thu Jul 25 22:17:14 2019
> @@ -1203,7 +1203,7 @@ namespace fs {
>  /// implementation.
>  std::error_code copy_file(const Twine &From, const Twine &To) {
>    uint32_t Flag = COPYFILE_DATA;
> -#if __has_builtin(__builtin_available)
> +#if __has_builtin(__builtin_available) && defined(COPYFILE_CLONE)
>    if (__builtin_available(macos 10.12, *)) {
>      bool IsSymlink;
>      if (std::error_code Error = is_symlink_file(From, IsSymlink))
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits