这是我的程序版本：
红宝石 2.2.2p95
导轨 4.2.3
Installing byebug 5.0.0 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
C:/Ruby22-x64/bin/ruby.exe -r ./siteconf20150719-7912-f08j1k.rb extconf.rb
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
generating byebug-x64-mingw32.def
compiling breakpoint.c
In file included from c:/Ruby22-x64/include/ruby-2.2.0/ruby/ruby.h:29:0,
from c:/Ruby22-x64/include/ruby-2.2.0/ruby.h:33,
from ./byebug.h:4,
from breakpoint.c:1:
c:/Ruby22-x64/include/ruby-2.2.0/ruby/defines.h:65:22: fatal error: setjmpex.h: No such file or directory
compilation terminated.
make: *** [breakpoint.o] Error 1
make failed, exit code 2
Gem files will remain installed in C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/byebug-5.0.0 for inspection.
Results logged to C:/Ruby22-x64/lib/ruby/gems/2.2.0/extensions/x64-mingw32/2.2.0/byebug-5.0.0/gem_make.out
An error occurred while installing byebug (5.0.0), and Bundler cannot continue.
Make sure that `gem install byebug -v '5.0.0'` succeeds before bundling.