Index: llvm-toolchain-snapshot_21~++20250422120724+c1940cd0deef/clang-tools-extra/clangd/CMakeLists.txt
===================================================================
--- llvm-toolchain-snapshot_21~++20250422120724+c1940cd0deef.orig/clang-tools-extra/clangd/CMakeLists.txt
+++ llvm-toolchain-snapshot_21~++20250422120724+c1940cd0deef/clang-tools-extra/clangd/CMakeLists.txt
@@ -61,6 +61,11 @@ endif()
 include_directories(BEFORE "${CMAKE_CURRENT_BINARY_DIR}/../clang-tidy")
 include_directories(BEFORE "${CMAKE_CURRENT_SOURCE_DIR}/../include-cleaner/include")
 
+if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "i386" OR
+   CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "i686")
+  list(APPEND CLANGD_ATOMIC_LIB "atomic")
+endif()
+
 add_clang_library(clangDaemon STATIC
   AST.cpp
   ASTSignals.cpp
@@ -180,6 +185,7 @@ clang_target_link_libraries(clangDaemon
 target_link_libraries(clangDaemon
   PRIVATE
   ${LLVM_PTHREAD_LIB}
+  ${CLANGD_ATOMIC_LIB}
 
   clangIncludeCleaner
   clangTidy