natto 0.9.8
No compiler is necessary, as natto is not a C extension. It will run on CRuby (mri/yarv) and JRuby (jvm) equally well. It will also run on Windows, Unix/Linux, and OS X. natto provides a naturally Ruby-esque interface to MeCab.
Gemfile:
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install:
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Runtime Dependencies (1):
ffi
>= 1.9.0
Requirements:
MeCab, 0.996 or greater
FFI, 1.9.0 or greater