/* 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 "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; }