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/* Control warning output in GNU Make.
Copyright (C) 2023 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.
GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>. */
/* Types of warnings we can show. */
enum warning_type
{
wt_undefined_var = 0, /* Reference an undefined variable name. */
wt_max
};
/* State of a given warning. */
enum warning_state
{
w_unset = 0,
w_ignore,
w_warn,
w_error
};
/* The default state of warnings. */
extern enum warning_state default_warnings[wt_max];
/* Current state of warnings. */
extern enum warning_state warnings[wt_max];
/* Global warning settings. */
extern enum warning_state warn_global;
/* Get the current state of a given warning. */
#define warn_get(_w) (warnings[_w] != w_unset ? warnings[_w] \
: warn_global != w_unset ? warn_global \
: default_warnings[_w])
/* Set the current state of a given warning. Can't use w_unset here. */
#define warn_set(_w,_f) do{ warnings[_w] = (_f); } while (0)
/* True if we should check for the warning in the first place. */
#define warn_check(_w) (warn_get (_w) > w_ignore)
/* Check if the warning is ignored. */
#define warn_ignored(_w) (warn_get (_w) == w_ignore)
/* Check if the warning is in "warn" mode. */
#define warn_warned(_w) (warn_get (_w) == w_warn)
/* Check if the warning is in "error" mode. */
#define warn_error(_w) (warn_get (_w) == w_error)
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