|  | dnl Copyright (C) 2022 Free Software Foundation, Inc. | 
|  | dnl This file is free software, distributed under the terms of the GNU | 
|  | dnl General Public License.  As a special exception to the GNU General | 
|  | dnl Public License, this file may be distributed as part of a program | 
|  | dnl that contains a configuration script generated by Autoconf, under | 
|  | dnl the same distribution terms as the rest of that program. | 
|  |  | 
|  | dnl Enable features using the zstd library. | 
|  | AC_DEFUN([AC_ZSTD], [ | 
|  | AC_ARG_WITH(zstd, | 
|  | [AS_HELP_STRING([--with-zstd], [support zstd compressed debug sections (default=auto)])], | 
|  | [], [with_zstd=auto]) | 
|  |  | 
|  | AS_IF([test "$with_zstd" != no], | 
|  | [PKG_CHECK_MODULES(ZSTD, [libzstd >= 1.4.0], [ | 
|  | AC_DEFINE(HAVE_ZSTD, 1, [Define to 1 if zstd is enabled.]) | 
|  | ], [ | 
|  | if test "$with_zstd" = yes; then | 
|  | AC_MSG_ERROR([--with-zstd was given, but pkgconfig/libzstd.pc is not found]) | 
|  | fi | 
|  | ]) | 
|  | ]) | 
|  | ]) |