$NetBSD$

* Fix link:
undefined reference to llvm::sys::CompareAndSwap(unsigned int volatile*, unsigned int, unsigned int)' 
undefined reference to llvm::sys::MemoryFence()' 

--- third_party/llvm-10.0/CMakeLists.txt.orig	2025-11-20 13:42:02.031324847 +0000
+++ third_party/llvm-10.0/CMakeLists.txt
@@ -563,6 +563,7 @@ set(LLVM_LIST
     ${LLVM_DIR}/lib/Support/ABIBreak.cpp
     ${LLVM_DIR}/lib/Support/APFloat.cpp
     ${LLVM_DIR}/lib/Support/APInt.cpp
+    ${LLVM_DIR}/lib/Support/Atomic.cpp
     ${LLVM_DIR}/lib/Support/ARMAttributeParser.cpp
     ${LLVM_DIR}/lib/Support/ARMBuildAttrs.cpp
     ${LLVM_DIR}/lib/Support/ARMTargetParser.cpp