mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 14:30:06 +00:00
43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
/* Macros for checking required GCC compatibility. Generic version.
|
|
Copyright (C) 2014-2024 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
|
|
<https://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
|