/* C/ObjC/C++ command line option handling.
- Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
+ Free Software Foundation, Inc.
Contributed by Neil Booth.
This file is part of GCC.
#include "opts.h"
#include "options.h"
#include "mkdeps.h"
+#include "target.h"
#ifndef DOLLARS_IN_IDENTIFIERS
# define DOLLARS_IN_IDENTIFIERS true
static bool verbose;
/* If -lang-fortran seen. */
-static bool lang_fortran = false;
+bool lang_fortran = false;
/* Dependency output file. */
static const char *deps_file;
{
default:
if (cl_options[code].flags & (CL_C | CL_CXX | CL_ObjC | CL_ObjCXX))
- break;
+ {
+ if ((option->flags & CL_TARGET)
+ && ! targetcm.handle_c_option (scode, arg, value))
+ result = 0;
+ break;
+ }
#ifdef CL_Fortran
if (lang_fortran && (cl_options[code].flags & (CL_Fortran)))
break;
if (c_dialect_cxx ())
warn_sign_compare = value;
warn_switch = value;
- warn_strict_aliasing = value;
- warn_string_literal_comparison = value;
- warn_always_true = value;
+ set_Wstrict_aliasing (value);
+ warn_address = value;
+ warn_strict_overflow = value;
+ warn_array_bounds = value;
/* Only warn about unknown pragmas that are not in system
headers. */
/* C++-specific warnings. */
warn_reorder = value;
warn_nontemplate_friend = value;
+ warn_cxx0x_compat = value;
if (value > 0)
warn_write_strings = true;
}
global_dc->warning_as_error_requested = value;
break;
- case OPT_Werror_implicit_function_declaration:
- mesg_implicit_function_declaration = 2;
+ case OPT_Werror_implicit_function_declaration:
+ /* For backward compatibility, this is the same as
+ -Werror=implicit-function-declaration. */
+ enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC);
break;
case OPT_Wformat:
flag_implicit_templates = value;
break;
+ case OPT_flax_vector_conversions:
+ flag_lax_vector_conversions = value;
+ break;
+
case OPT_fms_extensions:
flag_ms_extensions = value;
break;
flag_gen_declaration = 1;
break;
+ case OPT_femit_struct_debug_baseonly:
+ set_struct_debug_option ("base");
+ break;
+
+ case OPT_femit_struct_debug_reduced:
+ set_struct_debug_option ("dir:ord:sys,dir:gen:any,ind:base");
+ break;
+
+ case OPT_femit_struct_debug_detailed_:
+ set_struct_debug_option (arg);
+ break;
+
case OPT_idirafter:
add_path (xstrdup (arg), AFTER, 0, true);
break;
if (flag_inline_functions)
flag_inline_trees = 2;
+ /* By default we use C99 inline semantics in GNU99 or C99 mode. C99
+ inline semantics are not supported in GNU89 or C89 mode. */
+ if (flag_gnu89_inline == -1)
+ flag_gnu89_inline = !flag_isoc99;
+ else if (!flag_gnu89_inline && !flag_isoc99)
+ error ("-fno-gnu89-inline is only supported in GNU99 or C99 mode");
+
/* If we are given more than one input file, we must use
unit-at-a-time mode. */
if (num_in_fnames > 1)
if (warn_overlength_strings == -1 || c_dialect_cxx ())
warn_overlength_strings = 0;
+ /* Adjust various flags for C++ based on command-line settings. */
+ if (c_dialect_cxx ())
+ {
+ if (!flag_permissive)
+ {
+ flag_pedantic_errors = 1;
+ cpp_opts->pedantic_errors = 1;
+ }
+ if (!flag_no_inline)
+ {
+ flag_inline_trees = 1;
+ flag_no_inline = 1;
+ }
+ if (flag_inline_functions)
+ flag_inline_trees = 2;
+ }
+
/* Special format checking options don't work without -Wformat; warn if
they are used. */
if (!warn_format)
"-Wformat-zero-length ignored without -Wformat");
warning (OPT_Wformat_nonliteral,
"-Wformat-nonliteral ignored without -Wformat");
+ warning (OPT_Wformat_contains_nul,
+ "-Wformat-contains-nul ignored without -Wformat");
warning (OPT_Wformat_security,
"-Wformat-security ignored without -Wformat");
}
+ /* -Wimplicit-function-declaration is enabled by default for C99. */
+ if (warn_implicit_function_declaration == -1)
+ warn_implicit_function_declaration = flag_isoc99;
+
/* C99 requires special handling of complex multiplication and division;
-ffast-math and -fcx-limited-range are handled in process_options. */
if (flag_isoc99)
flag_complex_method = 2;
+ /* If we're allowing C++0x constructs, don't warn about C++0x
+ compatibility problems. */
+ if (flag_cpp0x)
+ warn_cxx0x_compat = 0;
+
if (flag_preprocess_only)
{
/* Open the output now. We must do so even if flag_no_output is
{
warn_implicit = on;
warn_implicit_int = on;
- if (on)
- {
- if (mesg_implicit_function_declaration != 2)
- mesg_implicit_function_declaration = 1;
- }
- else
- mesg_implicit_function_declaration = 0;
+ warn_implicit_function_declaration = on;
}
/* Args to -d specify what to dump. Silently ignore