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       1                 :            : /* version.c --- Version handling.
       2                 :            :  * Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010  Simon Josefsson
       3                 :            :  *
       4                 :            :  * This file is part of Shishi.
       5                 :            :  *
       6                 :            :  * Shishi is free software; you can redistribute it and/or modify it it
       7                 :            :  * under the terms of the GNU General Public License as published by
       8                 :            :  * the Free Software Foundation; either version 3 of the License, or
       9                 :            :  * (at your option) any later version.
      10                 :            :  *
      11                 :            :  * Shishi is distributed in the hope that it will be useful, but
      12                 :            :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      13                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14                 :            :  * GNU General Public License for more details.
      15                 :            :  *
      16                 :            :  * You should have received a copy of the GNU General Public License
      17                 :            :  * along with Shishi; if not, see http://www.gnu.org/licenses or write
      18                 :            :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
      19                 :            :  * 02110-1301, USA
      20                 :            :  *
      21                 :            :  */
      22                 :            : 
      23                 :            : #include "internal.h"
      24                 :            : 
      25                 :            : /**
      26                 :            :  * shishi_check_version:
      27                 :            :  * @req_version: version string to compare with, or NULL
      28                 :            :  *
      29                 :            :  * Check that the version of the library is at minimum the one given
      30                 :            :  * as a string in @req_version.
      31                 :            :  *
      32                 :            :  * Return value: the actual version string of the library; NULL if the
      33                 :            :  *   condition is not met.  If %NULL is passed to this function no
      34                 :            :  *   check is done and only the version string is returned.
      35                 :            :  **/
      36                 :            : const char *
      37                 :         14 : shishi_check_version (const char *req_version)
      38                 :            : {
      39 [ +  - ][ +  - ]:         14 :   if (!req_version || strverscmp (req_version, PACKAGE_VERSION) <= 0)
      40                 :         14 :     return PACKAGE_VERSION;
      41                 :            : 
      42                 :         14 :   return NULL;
      43                 :            : }