kc3-lang/gnulib/lib/check-version.c

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• Hash : b6d87f53
  Author :
  Date : 2008-08-19T09:23:40
  

  strverscmp: migrate from "strverscmp.h" to <string.h>
  
  * modules/string (Makefile.am): Add new hooks.
  * modules/strverscmp (Files): Remove strverscmp.h.
  (Depends-on): Add string.
  (configure.ac): Add indicator.
  (Include): Mention new header.
  * m4/string_h.m4 (gl_HEADER_STRING_H_DEFAULTS): Provide new
  defaults.
  * m4/strverscmp.m4 (gl_FUNC_STRVERSCMP): Inform string module of
  results.
  * lib/strverscmp.h: Delete.
  * lib/string.in.h (strverscmp): Provide declaration, when needed.
  * tests/test-strverscmp.c (includes): Adjust client.
  * lib/check-version.c (includes): Likewise.
  * NEWS: Document the change.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• lib/check-version.c

• /* check-version.h --- Check version string compatibility.
     Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
     2008 Free Software Foundation, Inc.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2, or (at your option)
     any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software Foundation,
     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  /* Written by Simon Josefsson.  This interface is influenced by
     gcry_check_version from Werner Koch's Libgcrypt.  Paul Eggert
     suggested the use of strverscmp to simplify implementation. */
  
  #include <config.h>
  
  #include <stddef.h>
  #include <string.h>
  
  /* Get specification. */
  #include "check-version.h"
  
  /* Check that the version of the library (i.e., the CPP symbol VERSION)
   * is at minimum the requested one in REQ_VERSION (typically found in
   * a header file) 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.
   */
  const char *
  check_version (const char *req_version)
  {
    if (!req_version || strverscmp (req_version, VERSION) <= 0)
      return VERSION;
  
    return NULL;
  }
  

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