kc3-lang/gnulib/m4/vararrays.m4

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• Hash : 9fc81090
  Author :
  Date : 2013-01-01T00:50:58
  

  maint: update all copyright year number ranges
  
  Run "make update-copyright".  Compare to commit 1602f0a from last year.
  
  Signed-off-by: Eric Blake <eblake@redhat.com>
  

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• m4/vararrays.m4

• # Check for variable-length arrays.
  
  # serial 4
  
  # From Paul Eggert
  
  # Copyright (C) 2001, 2009-2013 Free Software Foundation, Inc.
  # This file is free software; the Free Software Foundation
  # gives unlimited permission to copy and/or distribute it,
  # with or without modifications, as long as this notice is preserved.
  
  AC_DEFUN([AC_C_VARARRAYS],
  [
    AC_CACHE_CHECK([for variable-length arrays],
      ac_cv_c_vararrays,
      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
           [],
           [[static int x; char a[++x]; a[sizeof a - 1] = 0; return a[0];]])],
         ac_cv_c_vararrays=yes,
         ac_cv_c_vararrays=no)])
    if test $ac_cv_c_vararrays = yes; then
      AC_DEFINE([HAVE_C_VARARRAYS], [1],
        [Define to 1 if C supports variable-length arrays.])
    fi
  ])
  

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