Ruby 8上的DevKit，仍然不能安装本机扩展

Question

我在Windows8 8-64位上使用Ruby1.9.3。我的Ruby在C:\Ruby193中，Devkit在C:\DevKit中

我跟踪了DevKit的安装，这是一个成功的过程。

然后，指南要求我通过运行gem install json --platform=ruby来测试它，后者返回此错误(与安装DevKit之前类似)：

Note：另一个问题here告诉我将DevKit安装文件夹添加到环境PATH中，我做到了，但仍然得到了相同的错误。

C:\Users\myname>gem install json --platform=ruby
Building native extensions.  This could take a while...
ERROR:  Error installing json:
        ERROR: Failed to build gem native extension.

    C:/Ruby193/bin/ruby.exe extconf.rb
creating Makefile

make
generating generator-i386-mingw32.def
compiling generator.c
In file included from c:/Ruby193/include/ruby-1.9.1/ruby/ruby.h:1381:0,
                 from c:/Ruby193/include/ruby-1.9.1/ruby.h:32,
                 from ../fbuffer/fbuffer.h:5,
                 from generator.c:1:
c:/Ruby193/include/ruby-1.9.1/ruby/missing.h:41:8: error: redefinition of 'struc
t timespec'
In file included from c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../.
./../../i686-w64-mingw32/include/process.h:12:0,
                 from c:/Ruby193/include/ruby-1.9.1/ruby/win32.h:62,
                 from c:/Ruby193/include/ruby-1.9.1/ruby/defines.h:223,
                 from c:/Ruby193/include/ruby-1.9.1/ruby/ruby.h:67,
                 from c:/Ruby193/include/ruby-1.9.1/ruby.h:32,
                 from ../fbuffer/fbuffer.h:5,
                 from generator.c:1:
c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw
32/include/sys/types.h:89:8: note: originally defined here
In file included from c:/Ruby193/include/ruby-1.9.1/ruby/ruby.h:1381:0,
                 from c:/Ruby193/include/ruby-1.9.1/ruby.h:32,
                 from ../fbuffer/fbuffer.h:5,
                 from generator.c:1:
c:/Ruby193/include/ruby-1.9.1/ruby/missing.h:48:8: error: redefinition of 'struc
t timezone'
In file included from c:/Ruby193/include/ruby-1.9.1/ruby/win32.h:63:0,
                 from c:/Ruby193/include/ruby-1.9.1/ruby/defines.h:223,
                 from c:/Ruby193/include/ruby-1.9.1/ruby/ruby.h:67,
                 from c:/Ruby193/include/ruby-1.9.1/ruby.h:32,
                 from ../fbuffer/fbuffer.h:5,
                 from generator.c:1:
c:\devkit\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw
32/include/time.h:260:8: note: originally defined here
make: *** [generator.o] Error 1

有解决办法吗？谢谢

Answer 1

对不起，我用错了DevKit。

对于Ruby1.9.3和更低版本，我们应该使用DevKit-tdm-32-4.5.2-20111229-1559-sfx.exe -- mingw为2.0及更高版本。

现在效果很好。