[llvm] dsymutil: Re-add missing -latomic (PR #85380)

[via llvm-commits]

https://github.com/maflcko created https://github.com/llvm/llvm-project/pull/85380

This was accidentally removed in https://reviews.llvm.org/D137799#4657404 / https://reviews.llvm.org/D137799#C3933303OL44, and downstream projects are forced to add it back. For example, https://git.savannah.gnu.org/cgit/guix.git/commit/?id=4e26331a5ee87928a16888c36d51e270f0f10f90

Fix this, by re-adding it.

>From fa2004478c72b18e9877900025c7d01b114ac38d Mon Sep 17 00:00:00 2001
From: MarcoFalke <*~=`'#}+{/-|&$^_ at 721217.xyz>
Date: Fri, 15 Mar 2024 11:43:08 +0100
Subject: [PATCH] dsymutil: Re-add missing -latomic

---
 llvm/tools/dsymutil/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/tools/dsymutil/CMakeLists.txt b/llvm/tools/dsymutil/CMakeLists.txt
index 53f882e90b4e92..da371e6b728f77 100644
--- a/llvm/tools/dsymutil/CMakeLists.txt
+++ b/llvm/tools/dsymutil/CMakeLists.txt
@@ -45,4 +45,4 @@ if(APPLE AND NOT LLVM_TOOL_LLVM_DRIVER_BUILD)
   target_link_libraries(dsymutil PRIVATE "-framework CoreFoundation")
 endif(APPLE AND NOT LLVM_TOOL_LLVM_DRIVER_BUILD)
 
-# target_link_libraries(dsymutil PRIVATE ${LLVM_ATOMIC_LIB})
+target_link_libraries(dsymutil PRIVATE ${LLVM_ATOMIC_LIB})