diff --git a/interpreter/CMakeLists.txt b/interpreter/CMakeLists.txt
index 77d5d7f01355d..ed7242cf3f527 100644
--- a/interpreter/CMakeLists.txt
+++ b/interpreter/CMakeLists.txt
@@ -393,14 +393,29 @@ else()
 
     # Disable linking against shared LLVM
     set(LLVM_LINK_LLVM_DYLIB OFF)
+    # To ensure this override stays constant, we need to avoid subdirectories calling find_package(LLVM),
+    # which would set it to ON again if system was compiled that way
+    # Define a macro with a toggle flag to override find_package, that will only be visible in this scope, not in parent one.
+    # TEMPORARY: remove this workaround once ROOT can link against the shared
+    # libLLVM.so for builtin_llvm=OFF
+    macro(find_package _package_name)
+      if(ROOT_SKIP_FIND_LLVM_WITHIN_CLANG AND "${_package_name}" STREQUAL "LLVM")
+        message(STATUS "[ROOT] Suppressed find_package(LLVM) at ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE}"
+                       " to keep LLVM_LINK_LLVM_DYLIB=OFF.")
+      else()
+        _find_package(${_package_name} ${ARGN})
+      endif()
+    endmacro()
 
     # Always build LLVM with C++17. It is not necessary to compile with the same
     # C++ standard as the rest of ROOT and sometimes it doesn't even work.
     set(_cxx_standard ${CMAKE_CXX_STANDARD})
     set(CMAKE_CXX_STANDARD 17)
 
+    set(ROOT_SKIP_FIND_LLVM_WITHIN_CLANG ON)
     add_subdirectory(llvm-project/clang EXCLUDE_FROM_ALL)
-
+    set(ROOT_SKIP_FIND_LLVM_WITHIN_CLANG OFF)
+    
     set(CMAKE_CXX_STANDARD ${_cxx_standard})
   endif(builtin_clang)