From c624cc252738c30ada3f00a498e971a7a3a84196 Mon Sep 17 00:00:00 2001
From: Petr Hosek <phosek@google.com>
Date: Mon, 21 Mar 2022 18:32:03 -0700
Subject: [PATCH] [CMake][Clang] Skip host link version detection for lld on
 Darwin

When lld is being used as host linker, skip version detection since
lld version cannot be used interchangeably with ld64 version and lld
is already handled specially in Clang driver.

Differential Revision: https://reviews.llvm.org/D122109
---
 clang/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/CMakeLists.txt b/clang/CMakeLists.txt
index 937a8467df1d..78f584f18bac 100644
--- a/clang/CMakeLists.txt
+++ b/clang/CMakeLists.txt
@@ -403,7 +403,7 @@ endif ()
 
 # Determine HOST_LINK_VERSION on Darwin.
 set(HOST_LINK_VERSION)
-if (APPLE)
+if (APPLE AND NOT CMAKE_LINKER MATCHES ".*lld.*")
   set(LD_V_OUTPUT)
   execute_process(
     COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1"