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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Various compiler checks. */
#ifndef mozilla_Compiler_h_
#define mozilla_Compiler_h_
#if !defined(__clang__) && defined(__GNUC__)
#define MOZ_IS_GCC 1
/*
* This macro should simplify gcc version checking. For example, to check
* for gcc 4.5.1 or later, check `#ifdef MOZ_GCC_VERSION_AT_LEAST(4, 5, 1)`.
*/
# define MOZ_GCC_VERSION_AT_LEAST(major, minor, patchlevel) \
((__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) \
>= ((major) * 10000 + (minor) * 100 + (patchlevel)))
#if !MOZ_GCC_VERSION_AT_LEAST(4, 4, 0)
# error "mfbt (and Gecko) require at least gcc 4.4 to build."
#endif
#else
#define MOZ_IS_GCC 0
#endif
#endif /* mozilla_Compiler_h_ */
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