Simon Baldwin c047ce9383 cpplib.h (struct cpp_options): Add new boolean flag warn_builtin_macro_redefined. ... * include/cpplib.h (struct cpp_options): Add new boolean flag warn_builtin_macro_redefined. * init.c (cpp_create_reader): Initialize warn_builtin_macro_redefined. * (struct builtin_operator): Split out from previous struct builtin, enhance extra const correctness. * (struct builtin_macro): Split out from previous struct builtin, add new always_warn_if_redefined flag, enhance const correctness. * (mark_named_operators): Use struct builtin_operator. * (cpp_init_special_builtins): Use struct builtin_macro, add NODE_WARN to builtins selectively. * macro.c (warn_of_redefinition): Return false if a builtin macro is not flagged with NODE_WARN. * c-opts.c (c_common_handle_option): Add handling for -Wbuiltin-macro-redefined command line option. * c.opt: Added builtin-macro-redefined option. * doc/invoke.texi (Warning Options): Add -Wbuiltin-macro-redefined documentation. * gcc.dg/builtin-redefine.c: New. From-SVN: r140461		2008-09-18 15:39:08 +00:00
..
cpp-id-data.h	cpp-id-data.h (UC): Was U, conflicts with U...	2008-04-18 09:58:08 -04:00
cpplib.h	cpplib.h (struct cpp_options): Add new boolean flag warn_builtin_macro_redefined.	2008-09-18 15:39:08 +00:00
line-map.h	line-map.h (linenum_type): New typedef.	2008-07-21 09:33:38 +00:00
mkdeps.h	all files: Update FSF address in copyright headers.	2005-06-29 02:34:39 +00:00
symtab.h	symtab.h (HT_ALLOCED): Remove.	2008-05-21 15:00:59 +00:00