环境：windows 7-64bit DevKit-mingw64-32-4.7.2-20130224-1151-sfx ruby200-64
我已经安装了 devkit 和 ruby。然后我跑gem install jekyll
ruby.h 中看起来有问题
它有一些错误，如下所示：
ERROR: Error installing jekyll:
ERROR: Failed to build gem native extension.
d:/Ruby200-x64/bin/ruby.exe extconf.rb
creating Makefile
make "DESTDIR="
generating stemmer-x64-mingw32.def
compiling porter.c
porter.c: In function 'step1ab':
porter.c:233:4: warning: passing argument 2 of 'ends' discards qualifiers from p
...
..
compiling porter_wrap.c
In file included from d:/Ruby200-x64/include/ruby-2.0.0/ruby.h:33:0,from porter_wrap.c:1:
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:125:14: error: size of array 'ruby _ check_sizeof_voidp' is negative
In file included from d:/Ruby200-x64/include/ruby-2.0.0/ruby.h:33:0,
from porter_wrap.c:1:
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h: In function 'rb_float_value':
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:785:10: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h: In function 'rb_num2char_inline':
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1214:35: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1214:35: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1214:35: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1215:9: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1215:9: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1215:9: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h: In function 'rb_class_of':
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1515:12: warning: cast to pointer from integer of different size
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h: In function 'rb_type':
d:/Ruby200-x64/include/ruby-2.0.0/ruby/ruby.h:1532:12: warning: cast to pointer from integer of different size
porter_wrap.c: In function 'stem_word':
porter_wrap.c:26:16: warning: cast to pointer from integer of different size
porter_wrap.c:26:16: warning: cast to pointer from integer of different size
porter_wrap.c:26:16: warning: cast to pointer from integer of different size
porter_wrap.c:27:16: warning: cast to pointer from integer of different size
porter_wrap.c:27:16: warning: cast to pointer from integer of different size
porter_wrap.c:27:16: warning: cast to pointer from integer of different size
porter_wrap.c:27:34: warning: cast to pointer from integer of different size
porter_wrap.c:27:34: warning: cast to pointer from integer of different size
porter_wrap.c:27:34: warning: cast to pointer from integer of different size
porter_wrap.c:28:7: warning: cast to pointer from integer of different size
porter_wrap.c:28:7: warning: cast to pointer from integer of different size
porter_wrap.c:28:7: warning: cast to pointer from integer of different size
porter_wrap.c:20:17: warning: unused variable 'i'
make: *** [porter_wrap.o] Error 1
Gem files will remain installed in d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/fast-stemmer-1.0.2 for inspection.
Results logged to d:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/fast-stemmer-1.0.2/ext/gem_make.out
Successfully installed liquid-2.5.1
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
任何帮助都会有所帮助。thx