diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake
--- a/llvm/cmake/modules/AddLLVM.cmake
+++ b/llvm/cmake/modules/AddLLVM.cmake
@@ -3,6 +3,22 @@
 include(DetermineGCCCompatible)
 
 function(llvm_update_compile_flags name)
+  # clang and newer versions of ninja use high-resolutions timestamps,
+  # but older versions of libtool on Darwin don't, so the archive will
+  # often get an older timestamp than the last object that was added
+  # or updated.  To fix this, we add a custom command to touch archive
+  # after it's been built so that ninja won't rebuild it unnecessarily
+  # the next time it's run.
+  if(LLVM_TOUCH_STATIC_LIBRARIES)
+    get_target_property(target_type ${name} TYPE)
+    if (target_type STREQUAL "STATIC_LIBRARY")
+      add_custom_command(TARGET ${name}
+        POST_BUILD
+        COMMAND touch ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${name}${CMAKE_STATIC_LIBRARY_SUFFIX}
+        )
+    endif ()
+  endif()
+
   get_property(sources TARGET ${name} PROPERTY SOURCES)
   if("${sources}" MATCHES "\\.c(;|$)")
     set(update_src_props ON)
@@ -596,18 +612,6 @@
     llvm_externalize_debuginfo(${name})
     llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS})
   endif()
-  # clang and newer versions of ninja use high-resolutions timestamps,
-  # but older versions of libtool on Darwin don't, so the archive will
-  # often get an older timestamp than the last object that was added
-  # or updated.  To fix this, we add a custom command to touch archive
-  # after it's been built so that ninja won't rebuild it unnecessarily
-  # the next time it's run.
-  if(ARG_STATIC AND LLVM_TOUCH_STATIC_LIBRARIES)
-    add_custom_command(TARGET ${name}
-      POST_BUILD
-      COMMAND touch ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${name}${CMAKE_STATIC_LIBRARY_SUFFIX}
-      )
-  endif()
 endfunction()
 
 function(add_llvm_install_targets target)