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-rw-r--r--gcc/c-decl.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index 08f79098243..839b5f3b2ab 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -5698,11 +5698,9 @@ start_function (struct c_declspecs *declspecs, struct c_declarator *declarator,
DECL_INITIAL (decl1) = error_mark_node;
/* If this definition isn't a prototype and we had a prototype declaration
- before, copy the arg type info from that prototype.
- But not if what we had before was a builtin function. */
+ before, copy the arg type info from that prototype. */
old_decl = lookup_name_in_scope (DECL_NAME (decl1), current_scope);
if (old_decl != 0 && TREE_CODE (TREE_TYPE (old_decl)) == FUNCTION_TYPE
- && !DECL_BUILT_IN (old_decl)
&& comptypes (TREE_TYPE (TREE_TYPE (decl1)),
TREE_TYPE (TREE_TYPE (old_decl)))
&& TYPE_ARG_TYPES (TREE_TYPE (decl1)) == 0)