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Accepted
Ciaran Woodward
Asked: 2020-02-08 03:51:05 +0800 CST

为什么 GNU 'bc' 有这么长的版权字符串？

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当您在 GNU 系统上运行 'bc' 时，它会打印出以下文本：

~$ bc
bc 1.07.1
Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006, 2008, 2012-2017 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.

与其他几个 GNU 实用程序相比：

~$ gcc --version
gcc (Debian 8.3.0-6) 8.3.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

和

~$ grep --version
grep (GNU grep) 3.3
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

和

~$ ls --version
ls (GNU coreutils) 8.30
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

bc 是否有任何理由以这种方式列出所有版权日期，而不仅仅是使用“Copyright 2017 Free Software Foundation, Inc.”？

bc gpl

1 个回答

  1. Best Answer

    bc遵循推荐的 GNU 版权声明实践，其中包括列出每个出版年份，尽管此处的版权声明列出的年份比所见bc版本（甚至包括dc发行版）更多。

    其他工具仅列出上次发布的年份，使用gnulib 的version_etc功能，该功能仅打印 gnulib 中最后更新的年份。

    另请参阅版权声明必须在项目处于活动状态时定期更新？

    • 3

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