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-rw-r--r--gcc/objc/objc-lang.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/objc/objc-lang.c b/gcc/objc/objc-lang.c
index 2be19df9523..aa22ea316a3 100644
--- a/gcc/objc/objc-lang.c
+++ b/gcc/objc/objc-lang.c
@@ -46,6 +46,8 @@ static void objc_post_options PARAMS ((void));
#define LANG_HOOKS_POST_OPTIONS objc_post_options
#undef LANG_HOOKS_PARSE_FILE
#define LANG_HOOKS_PARSE_FILE c_common_parse_file
+#undef LANG_HOOKS_MARK_TREE
+#define LANG_HOOKS_MARK_TREE c_mark_tree
#undef LANG_HOOKS_STATICP
#define LANG_HOOKS_STATICP c_staticp
#undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL