How to Call/Require Ruby 1.8 Lib from Ruby 1.9 - ruby

Question

I'm using a Ruby 1.8 lib kakasi-ruby, but it seems that it can only be compiled against Ruby 1.8 (https://github.com/hogelog/kakasi-ruby/issues/2)
My application is Ruby 1.9.3, so I need to call kakasi-ruby from Ruby 1.9.3.
How should I do?
Do I have to open a subprocess with Ruby 1.8, and wait for it finish to get the process return value?
Edit:
https://github.com/hogelog/kakasi-ruby

Answer 1

Found 3 possible paths:
There seems to be a branch for 1.9 in the repo. Maybe try to compile that instead?
Otherwise your fastest option is probably to go back to 1.8 depending on what kind of app it is.
Calling with 1.8 may work BUT since the library seems to be a binding to some C code you could probably call that code directly just as well.

Answer 2

BTW, here is the usage in Ruby 1.9
plee#sos:~/Japanese$ irb
1.9.3p194 :001 > require 'kakasi'
=> true
1.9.3p194 :002 > src="前原誠司経済財政相は４日、朝日新聞などのインタビューに対し"
=> "前原誠司経済財政相は４日、朝日新聞などのインタビューに対し"
1.9.3p194 :003 > src=src.encode("EUC-JP", "UTF-8")
=> "\x{C1B0}\x{B8B6}\x{C0BF}\x{BBCA}\x{B7D0}\x{BAD1}\x{BAE2}\x{C0AF}\x{C1EA}\x{A4CF}\x{A3B4}\x{C6FC}\x{A1A2}\x{C4AB}\x{C6FC}\x{BFB7}\x{CAB9}\x{A4CA}\x{A4C9}\x{A4CE}\x{A5A4}\x{A5F3}\x{A5BF}\x{A5D3}\x{A5E5}\x{A1BC}\x{A4CB}\x{C2D0}\x{A4B7}"
1.9.3p194 :004 > dst=Kakasi.kakasi("-w", src)
=> "\xC1\xB0\xB8\xB6 \xC0\xBF\xBB\xCA \xB7\xD0\xBA\xD1 \xBA\xE2\xC0\xAF \xC1\xEA \xA4\xCF \xA3\xB4 \xC6\xFC \xA1\xA2 \xC4\xAB\xC6\xFC\xBF\xB7\xCA\xB9 \xA4\xCA\xA4\xC9\xA4\xCE \xA5\xA4\xA5\xF3\xA5\xBF\xA5\xD3\xA5\xE5\xA1\xBC \xA4\xCB \xC2\xD0\xA4\xB7"
1.9.3p194 :005 > dst.force_encoding("EUC-JP")
=> "\x{C1B0}\x{B8B6} \x{C0BF}\x{BBCA} \x{B7D0}\x{BAD1} \x{BAE2}\x{C0AF} \x{C1EA} \x{A4CF} \x{A3B4} \x{C6FC} \x{A1A2} \x{C4AB}\x{C6FC}\x{BFB7}\x{CAB9} \x{A4CA}\x{A4C9}\x{A4CE} \x{A5A4}\x{A5F3}\x{A5BF}\x{A5D3}\x{A5E5}\x{A1BC} \x{A4CB} \x{C2D0}\x{A4B7}"
1.9.3p194 :006 > dst=dst.encode("UTF-8", "EUC-JP")
=> "前原 誠司 経済 財政 相 は ４ 日 、 朝日新聞 などの インタビュー に 対し"
1.9.3p194 :007 >