text: /* Macros for checking required GCC compatibility.  Generic version.
     Copyright (C) 2014-2017 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
  