我不断收到同样的错误消息：
C:\Devkit>gem install json --platform=ruby
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing json:
ERROR: Failed to build gem native extension.
D:/Ruby22/bin/ruby.exe -r ./siteconf20150813-3104-1rfxe1t.rb extconf.rb
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
generating generator-i386-mingw32.def
compiling generator.c
In file included from d:/Ruby22/include/ruby-2.2.0/ruby.h:33:0,
from ../fbuffer/fbuffer.h:5,
from generator.c:1:
d:/Ruby22/include/ruby-2.2.0/ruby/ruby.h:111:14: error: size of array 'ruby_chec
k_sizeof_voidp' is negative
In file included from d:/Ruby22/include/ruby-2.2.0/ruby.h:33:0,
from ../fbuffer/fbuffer.h:5,
from generator.c:1:
d:/Ruby22/include/ruby-2.2.0/ruby/ruby.h: In function ' rb_obj_freeze_inline':
d:/Ruby22/include/ruby-2.2.0/ruby/ruby.h:1156:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
d:/Ruby22/include/ruby-2.2.0/ruby/ruby.h:1157:2: warning: cast to pointer from i
nteger of different size [-Wint-to-pointer-cast]
make: *** [generator.o] Error 1
make failed, exit code 2
Gem files will remain installed in D:/Ruby22/lib/ruby/gems/2.2.0/gems/json- 1.8.3
for inspection.
Results logged to D:/Ruby22/lib/ruby/gems/2.2.0/extensions/x86- mingw32/2.2.0/jso
n-1.8.3/gem_make.out
关于从int转换为指针的警告还有很多。这也不允许我的捆绑安装＆＃39;无论是。我不知道该改变什么。我下载了正确版本的Devkit。