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/* version.c --- Version handling.
* Copyright (C) 2002, 2003, 2004, 2006, 2007 Simon Josefsson
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this file; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#ifdef HAVE_CONFIG_H
# include "idn_config.h"
#endif
#include "stringprep.h"
#include <strverscmp.h>
/**
* stringprep_check_version - check for library version
* @req_version: Required version number, or NULL.
*
* Check that the the version of the library is at minimum the requested one
* and return the version string; return NULL if the condition is not
* satisfied. If a NULL is passed to this function, no check is done,
* but the version string is simply returned.
*
* See %STRINGPREP_VERSION for a suitable @req_version string.
*
* Return value: Version string of run-time library, or NULL if the
* run-time library does not meet the required version number.
*/
const char *
stringprep_check_version (const char *req_version)
{
if (!req_version || strverscmp (req_version, PACKAGE_VERSION) <= 0)
return PACKAGE_VERSION;
return NULL;
}
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