Question

我使用ruby-build将ruby版本从ruby 1.9.3-p125更改为JRuby 1.7.0-preview1。当我在项目上执行jruby -S bundle install时，会出现以下错误，

...
Using bson (1.6.2) 
Installing bson_ext (1.6.2) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/joshchang/.rbenv/versions/jruby-1.7.0-preview1/bin/jruby extconf.rb 
NotImplementedError: C extension support is not enabled. Pass -Xcext.enabled=true to JRuby or set JRUBY_OPTS or modify .jrubyrc to enable.

   (root) at /Users/joshchang/.rbenv/versions/jruby-1.7.0-preview1/lib/ruby/shared/mkmf.rb:8
  require at org/jruby/RubyKernel.java:991
   (root) at /Users/joshchang/.rbenv/versions/jruby-1.7.0-preview1/lib/ruby/shared/rubygems/custom_require.rb:1
   (root) at extconf.rb:1
...

有什么建议吗？感谢。

Answer 1

JRUBY_OPTS="-Xcext.enabled=true" gem install <your gem>应该有效！

Answer 2

只需阅读错误消息并按照说法进行操作：jruby -Xcext.enabled=true -S bundle install 虽然它可能不起作用 - 但JRuby通常不支持C扩展。

无法使用JRuby构建gem原生扩展

2 个答案: