[2021/12/01]
* Version 2.5.1
  - fixes for compiling for Ruby 3

[2015/10/06]
* Version 2.5.0
  - fixes for compiling for rubinius, at long last
  - TESTS
  - add a few method aliases

[2014/12/02]
* Version 2.4.1
  - sp_loginclass support should NOT have been added to password implementation
[2014/12/01]
* Version 2.4.0
  - Add support for sp_loginclass via pwd.h
[2014/04/28]
* Version 2.3.3
  - Added support for more BSDs, thanks to https://github.com/bsiegert.
  - Simplified compatibility check, removing check for function not actually used in pwd.h implementations.
[2014/02/25]
[2013/12/18]
* Version 2.3.3
 Fix bug in shadow implementations (Linux, solaris) where sp_expired field was incorrectly set as nil.  -1 is used to indicate not set.  This was introduced 2.3.0.
[2013/11/13]
* Version 2.3.1
 - Caleb Land<caleb.land@gmail.com>
 Remove sgetspent on implementations using pwd.h
[2013/11/13]
* Version 2.3.0
 - Caleb Land<caleb.land@gmail.com>
 Merge OS X work into main gem.  Fix bugs with OS X implementation and tweak support for FreeBSD.
 See https://github.com/caleb/ruby-shadow/commit/20d98b7d9e3bbbef0b737affd3245590096a316c
 - Add license file to Manifest.
[2013/02/25]
 - Adam Palmblad<apalmblad@gmail.com>
 Fix compilation issues with ruby 2.

[2012/04/17]
* Version 2.1.4
 - MATSUU Takuto <matsuu@gentoo.org>
  Change obsolete C function to its proper replacement. 
* Version 2.1.3
 - MATSUU Takuto <matsuu@gentoo.org>
 Fix a typo in the C code for rb_shadow_putspent.  Typo has been present since
 ruby 1.9 code was added.
[2011/02/08]
* Version 2.1.2
 -  Jeff Blaine <>, Adam Palmblad <adam.palmblad@teampages.com>:
   Fix issues with compiling against Solaris.  Apparently solaris does not offer sgetspent
 compiling against ruby 1.8; fixes were made to the ruby header path.
[2011/02/08]
* Version 2.1.1
 -  Eric Hankins <ssilver@stormsilver.net>: Looks like there was a minor bug in
 compiling against ruby 1.8; fixes were made to the ruby header path.
[2011/01/27]
* Version 2.1
    - Ian Marlier <imarlier@brightcove.com>: Make ruby-shadow compile under Ruby 1.9.2
        * STR2CSTR macro was removed in Ruby 1.9.2, after being deprecated in Ruby 1.8.  Change
          to StringValuePtr() in its place.

[2010/07/27]
* Version 2.0
    - Adam Palmblad <adam.palmblad@teampages.com>: Make ruby-shadow compile under Ruby 1.9

[1999/08/18]
* version 1.4.1
  - extconf.rb supports glibc2(libc6).
  
[1999/03/09]
* version 1.4
  - require ruby-1.3 or later version.
  - sShadowPasswd,mShadow,eFileLock was renamed.
  - FileLock class is inner class of Shadow Module.
  - lock,unlock was changed.
  - lock? method was added.
  - getspent,fgetspent doesn't raise EOFError
  - class hierarchy was changed.
      Shadow Module
       +  Passwd Module
           + Entry Structure
       +  Group Module (not implemented yet)
           + Entry Structure (not implemented yet)
       +  FileLock Class

[1998/12/17]
* version 1.3
  - require ruby-1.1d0 or later version.

[1998/10/31]
* version 1.2
  - only some bug fix.

[1998/08/31]
* version 1.1
  - structure Shadow::ShadowPasswd is added.

[1998/07/15]
* version 1.0 released.
