bpo-43109: Fix --with-lto configure option on macOS (GH-26341)

Allow --with-lto configure option to work with Apple-supplied Xcode or
Command Line Tools which do not provide llvm-ar.
(cherry picked from commit 59acfd4a09df1c141dac7845eed008af8970fce7)

Co-authored-by: Ned Deily <nad@python.org>

Miss Islington (bot) committed 4y ago

25a9cf197ea0d77abd49992a7751efa0046bb1e6

Parent: 8677987

Committed by GitHub <noreply@github.com> on 5/25/2021, 4:18:53 AM