gnulib/import/m4/error.m4

   1 #serial 14
   2
   3 # Copyright (C) 1996-1998, 2001-2004, 2009-2019 Free Software Foundation, Inc.
   4 #
   5 # This file is free software; the Free Software Foundation
   6 # gives unlimited permission to copy and/or distribute it,
   7 # with or without modifications, as long as this notice is preserved.
   8
   9 AC_DEFUN([gl_ERROR],
  10 [
  11   dnl We don't use AC_FUNC_ERROR_AT_LINE any more, because it is no longer
  12   dnl maintained in Autoconf and because it invokes AC_LIBOBJ.
  13   AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line],
  14     [AC_LINK_IFELSE(
  15        [AC_LANG_PROGRAM(
  16           [[#include <error.h>]],
  17           [[error_at_line (0, 0, "", 0, "an error occurred");]])],
  18        [ac_cv_lib_error_at_line=yes],
  19        [ac_cv_lib_error_at_line=no])])
  20 ])
  21
  22 # Prerequisites of lib/error.c.
  23 AC_DEFUN([gl_PREREQ_ERROR],
  24 [
  25   AC_REQUIRE([AC_FUNC_STRERROR_R])
  26   :
  27 ])