Index: llvm-toolchain-18_18.1.2/libunwind/CMakeLists.txt
===================================================================
--- llvm-toolchain-18_18.1.2.orig/libunwind/CMakeLists.txt
+++ llvm-toolchain-18_18.1.2/libunwind/CMakeLists.txt
@@ -301,14 +301,17 @@ if (MSVC)
   add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 endif()
 
-if (C_SUPPORTS_COMMENT_LIB_PRAGMA)
-  if (LIBUNWIND_HAS_DL_LIB)
+list(APPEND LIBUNWIND_LINK_FLAGS "-ldl")
+list(APPEND LIBUNWIND_LINK_FLAGS "-lpthread")
+
+#if (C_SUPPORTS_COMMENT_LIB_PRAGMA)
+#  if (LIBUNWIND_HAS_DL_LIB)
     add_definitions(-D_LIBUNWIND_LINK_DL_LIB)
-  endif()
-  if (LIBUNWIND_HAS_PTHREAD_LIB)
+#  endif()
+#  if (LIBUNWIND_HAS_PTHREAD_LIB)
     add_definitions(-D_LIBUNWIND_LINK_PTHREAD_LIB)
-  endif()
-endif()
+#  endif()
+#endif()
 
 #===============================================================================
 # Setup Source Code