kc3-lang/gnulib/m4/vararrays.m4

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• Hash : 9fefaeaf
  Author :
  Date : 2006-11-30T23:11:30
  

  * m4/warning.m4: Use the all-permissive copyright notice
  recommended by RMS (rather than LGPL).
  * m4/vararrays.m4: Likewise.
  * m4/flexmember.m4: Likewise.
  

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• m4/vararrays.m4

• # Check for variable-length arrays.
  
  #serial 2
  
  # From Paul Eggert
  
  # Copyright (C) 2001 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_TRY_COMPILE(
         [],
         [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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