在Windows上安装gem system\u计时器

这里有人成功安装了 system_timer Windows上的宝石? devkit 在我的机器上,我可以安装其他本地宝石。

In file included from system_timer_native.c:2:
c:/Ruby19/include/ruby-1.9.1/ruby/backward/rubysig.h:14:2: warning: 
    #warning rubysig.h is obsolete
system_timer_native.c: In function `install_timer':
system_timer_native.c:28: error: storage size of 'timer_interval' isn't known
system_timer_native.c:33: warning: implicit declaration of function `sigprocmask'

宝石 home page 声明它在Windows上不工作

SystemTimer  only works on UNIX platforms (Mac OS X, Linux, Solaris, BSD, …). 
You can install the gem on Microsoft Windows, but you will only get a 
convenience shell wrapping a simple call to timeout.rb under the cover.

我使用的是Ruby1.9,因为1.9中的线程模型不同,所以我想知道gem是否可以在1.9中工作。