diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -789,7 +789,11 @@
   add_flag_if_supported("-Wstring-conversion" STRING_CONVERSION_FLAG)
 
   # Prevent bugs that can happen with llvm's brace style.
-  add_flag_if_supported("-Wmisleading-indentation" MISLEADING_INDENTATION_FLAG)
+  if (CMAKE_COMPILER_IS_GNUCXX)
+    add_flag_if_supported("-Wno-misleading-indentation" MISLEADING_INDENTATION_FLAG)
+  else()
+    add_flag_if_supported("-Wmisleading-indentation" MISLEADING_INDENTATION_FLAG)
+  endif()
 endif (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL))
 
 if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND NOT LLVM_ENABLE_WARNINGS)