error.m4
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error.m4
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	#serial 14

	# Copyright (C) 1996-1998, 2001-2004, 2009-2011 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([gl_ERROR],
	[
	dnl We don't use AC_FUNC_ERROR_AT_LINE any more, because it is no longer
	dnl maintained in Autoconf and because it invokes AC_LIBOBJ.
	AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line],
	[AC_LINK_IFELSE(
	[AC_LANG_PROGRAM(
	[[#include <error.h>]],
	[[error_at_line (0, 0, "", 0, "an error occurred");]])],
	[ac_cv_lib_error_at_line=yes],
	[ac_cv_lib_error_at_line=no])])
	])

	# Prerequisites of lib/error.c.
	AC_DEFUN([gl_PREREQ_ERROR],
	[
	AC_REQUIRE([AC_FUNC_STRERROR_R])
	AC_REQUIRE([AC_C_INLINE])
	:
	])