It's gone since 2007. Committed as obvious.
Richard. 2012-04-05 Richard Guenther <rguent...@suse.de> * lto-lang.c (LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION): Remove definition. Index: lto-lang.c =================================================================== --- lto-lang.c (revision 186165) +++ lto-lang.c (working copy) @@ -1259,8 +1259,6 @@ static void lto_init_ts (void) #define LANG_HOOKS_INIT lto_init #undef LANG_HOOKS_PARSE_FILE #define LANG_HOOKS_PARSE_FILE lto_main -#undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION -#define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION tree_rest_of_compilation #undef LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS #define LANG_HOOKS_REDUCE_BIT_FIELD_OPERATIONS true #undef LANG_HOOKS_TYPES_COMPATIBLE_P