I want to install a gem but I get the following error:
Building native extensions. This could take a while...
ERROR: Error installing twitter-login:
ERROR: Failed to build gem native extension.
C:/nwcloud/jruby-1.7.2/bin/jruby.exe extconf.rb
NotImplementedError: C extension support is not enabled. Pass -Xcext.enabled=true to JRuby or set JRUBY_OPTS or modify .jrubyrc to enable.
I also read this question with the same problem, but I don't even know how to enable the support with the three options because I don't know how to pass -Xcext.enabled=true
to JRuby or set JRUBY_OPTS or modify .jrubyrc to enable.
Can anybody help me with my beginner problem?
罗德里戈建议的.jrubyrc编辑对我不起作用(jdk 7u25 / JRuby 1.7.4),但导出JRUBY_OPTS确实可以解决问题:
export JRUBY_OPTS="--1.9 -Xcext.enabled=true"
Make sure you are using the latest openjdk (7 update 21, at the time of this writing) and latest JRuby (1.7.4).
Create a file called .jrubyrc in your user home folder.
add the following;
cext.enabled=true
done
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