* gansidecl.h: Prepend a "G" to the macro wrapping this file
        (to distinguish it from the macro wrapping ansidecl.h.)
        Include libiberty's ansidecl.h.  Remove all redundant definitions.
        Define the PROTO() style macros in terms of the PARAMS() ones.
        * calls.c (emit_library_call): Switch on ANSI_PROTOTYPES, not
        __STDC__, when deciding whether to use ANSI variable args.
        (emit_library_call_value): Likewise.
        * cccp.c (error): Likewise.
        (warning): Likewise.
        (error_with_line): Likewise.
        (warning_with_line): Likewise.
        (pedwarn): Likewise.
        (pedwarn_with_line): Likewise.
        (pedwarn_with_file_and_line): Likewise.
        (fatal): Likewise.
        * cexp.y (error): Likewise.
        (pedwarn): Likewise.
        (warning): Likewise.
        * collect2.c (fatal_perror): Likewise.
        (fatal): Likewise.
        (error): Likewise.
        * combine.c (gen_rtx_combine): Likewise.
        * cpperror.c (cpp_message): Likewise.
        (cpp_fatal): Likewise.
        * cpplib.c (cpp_error): Likewise.
        (cpp_warning): Likewise.
        (cpp_pedwarn): Likewise.
        (cpp_error_with_line): Likewise.
        (cpp_warning_with_line): Likewise.
        (cpp_pedwarn_with_line): Likewise.
        (cpp_pedwarn_with_file_and_line): Likewise.
        * cpplib.h: Don't define PARAMS() macro.
        * demangle.h: Likewise.
        * doprint.c (checkit): Switch on ANSI_PROTOTYPES, not __STDC__,
        when deciding whether to use ANSI variable args.
        * emit-rtl.c (gen_rtx): Likewise.
        (gen_rtvec): Likewise.
        * final.c (asm_fprintf): Likewise.
        * fix-header.c (cpp_message): Likewise.
        (fatal): Likewise.
        (cpp_fatal): Likewise.
        * gcc.c (concat): Likewise.
        (fatal): Likewise.
        (error): Likewise.
        * genattr.c (fatal): Likewise.
        * genattrtab.c (attr_rtx): Likewise.
        (attr_printf): Likewise.
        (fatal): Likewise.
        * gencodes.c (fatal): Likewise.
        * genconfig.c (fatal): Likewise.
        * genemit.c (fatal): Likewise.
        * genextract.c (fatal): Likewise.
        * genflags.c (fatal): Likewise.
        * genopinit.c (fatal): Likewise.
        * genoutput.c (fatal): Likewise.
        (error): Likewise.
        * genpeep.c (fatal): Likewise.
        * genrecog.c (fatal): Likewise.
        * halfpic.h: Switch on ANSI_PROTOTYPES, not __STDC__, when
        deciding whether to declare `tree_node' and `rtx_def'.
        * hash.h: Don't define stuff we get from gansidecl.h.
        * mips-tfile.c: Likewise.  Define __proto() in terms of PARAMS().
        (fatal): Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
        whether to use ANSI variable args.
        (error): Likewise.
        * prefix.c (concat): Likewise.
        * scan.h: Likewise.
        * system.h: Likewise.
        * toplev.c (error_with_file_and_line): Likewise.
        (error_with_decl): Likewise.
        (error_for_asm): Likewise.
        (error): Likewise.
        (fatal): Likewise.
        (warning_with_file_and_line): Likewise.
        (warning_with_decl): Likewise.
        (warning_for_asm): Likewise.
        (warning): Likewise.
        (pedwarn): Likewise.
        (pedwarn_with_decl): Likewise.
        (pedwarn_with_file_and_line): Likewise.
        (sorry): Likewise.
        (really_sorry): Likewise.
        * toplev.h: Switch on ANSI_PROTOTYPES, not __STDC__, when deciding
        whether to declare `tree_node' and `rtx_def'.
        * tree.c (build): Switch on ANSI_PROTOTYPES, not __STDC__, when
        deciding whether to use ANSI variable args.
        (build_nt): Likewise.
        (build_parse_node): Likewise.

From-SVN: r23577