forked from osmocom/wireshark
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/* ws_diag_control.h
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* Turn compiler diagnostic messages on and off.
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*
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* From FreeRADIUS build.h.
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*
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* @copyright 2013 The FreeRADIUS server project
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*
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* That project is covered by the GPLv2, so:
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __WS_DIAG_CONTROL_H__
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#define __WS_DIAG_CONTROL_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define XSTRINGIFY(x) #x
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/*
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* Macros for controlling warnings in GCC >= 4.2 and clang >= 2.8
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*/
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#define DIAG_JOINSTR(x,y) XSTRINGIFY(x ## y)
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#define DIAG_DO_PRAGMA(x) _Pragma (#x)
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/* check the gcc or clang version
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pragma GCC diagnostic error/warning/ignored -Wxxx was introduced
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in gcc 4.2.0
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pragma GCC diagnostic push/pop was introduced in gcc 4.6.0
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pragma clang diagnostic error/warning/ignored -Wxxx and
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pragma clang diagnostic push/pop were introduced in clang 2.8 */
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#if defined(__GNUC__) && !defined(__clang__)
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# define gcc_version ((__GNUC__ * 1000) + (__GNUC_MINOR__ * 10))
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# if gcc_version >= 4080
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/*
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* gcc version is >= 4.8.0. We can use "GCC diagnostic push/pop" *and*
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* gcc supports "-Wpedantic".
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*/
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# define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(GCC diagnostic x)
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# define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x))
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# define DIAG_ON(x) DIAG_PRAGMA(pop)
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# endif
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#elif defined(__clang__)
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# define clang_version ((__clang_major__ * 1000) + (__clang_minor__ * 10))
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# if clang_version >= 2080
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/* clang version is >= 2.8: we can use "clang diagnostic ignored -Wxxx"
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and "clang diagnostic push/pop" */
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# define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(clang diagnostic x)
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# define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x))
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# define DIAG_ON(x) DIAG_PRAGMA(pop)
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# endif
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#endif
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/* Use for clang specific pragmas, so we can keep -Wpragmas enabled */
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#ifdef __clang__
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# define DIAG_OFF_CLANG(x) DIAG_OFF(x)
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# define DIAG_ON_CLANG(x) DIAG_ON(x)
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#else
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# define DIAG_OFF_CLANG(x)
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# define DIAG_ON_CLANG(x)
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#endif
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#ifndef DIAG_OFF
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/* no gcc or clang, or gcc version < 4.2.0, or clang version < 2.8:
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we can't do anything */
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# define DIAG_OFF(x)
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# define DIAG_ON(x)
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#endif
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/*
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* For dealing with APIs which are only deprecated in macOS (like the
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* OpenSSL and MIT/Heimdal Kerberos APIs).
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*
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* Dear Apple: this is a cross-platform program, and we're not
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* going to use your Shiny New Frameworks on macOS unless there's
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* a sufficiently clear benefit to make it worth our while to have
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* both macOS and non-macOS versions of the code.
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*/
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#ifdef __APPLE__
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# define USES_APPLE_DEPRECATED_API DIAG_OFF(deprecated-declarations)
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# define USES_APPLE_RST DIAG_ON(deprecated-declarations)
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#else
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# define USES_APPLE_DEPRECATED_API
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# define USES_APPLE_RST
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* __WS_DIAG_CONTROL_H__ */
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