| /* Macros for checking required GCC compatibility. Generic version. |
| Copyright (C) 2014-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* This is the base file. More-specific sysdeps/.../gcc-compat.h files |
| can define GCC_COMPAT_VERSION and then #include_next this file. */ |
| |
| #ifndef _GENERIC_GCC_COMPAT_H |
| #define _GENERIC_GCC_COMPAT_H 1 |
| |
| /* This is the macro that gets used in #if tests in code: true iff |
| the library we build must be compatible with user code built by |
| GCC version MAJOR.MINOR. */ |
| #define GCC_COMPAT(major, minor) \ |
| (GCC_COMPAT_VERSION <= GCC_VERSION (major, minor)) |
| |
| /* This is how we compose an integer from major and minor version |
| numbers, for comparison. */ |
| #define GCC_VERSION(major, minor) \ |
| (((major) << 16) + (minor)) |
| |
| #ifndef GCC_COMPAT_VERSION |
| /* GCC 2.7.2 was current at the time of the glibc-2.0 release. |
| We assume nothing before that ever mattered. */ |
| # define GCC_COMPAT_VERSION GCC_VERSION (2, 7) |
| #endif |
| |
| #endif |