emsApplication/3rdPartner/libiconv/srcm4/error.m4

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2024-05-24 12:19:45 +08:00
#serial 15
# Copyright (C) 1996-1998, 2001-2004, 2009-2022 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],
[
dnl Use system extensions on Android, so that AC_FUNC_STRERROR_R
dnl discovers the GNU API for strerror_r on Android API level 23 and later.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([AC_FUNC_STRERROR_R])
:
])