===================================================================
@@ -3130,8 +3130,11 @@ pushdecl (tree x)
detecting duplicate declarations of the same object, no matter
what scope they are in; this is what we do here. (C99 6.2.7p2:
All declarations that refer to the same object or function shall
- have compatible type; otherwise, the behavior is undefined.) */
- if (DECL_EXTERNAL (x) || scope == file_scope)
+ have compatible type; otherwise, the behavior is undefined.)
+ However, in Objective-C, we also want to detect declarations
+ conflicting with those of the basic types. */
+ if ((DECL_EXTERNAL (x) || scope == file_scope)
+ && (VAR_OR_FUNCTION_DECL_P (x) || c_dialect_objc ()))
{
tree type = TREE_TYPE (x);
tree vistype = NULL_TREE;