[jhc] darcs patch: Upgrade some JHC_EXT_LIBS.

1 patch for repository http://repetae.net/repos/jhc: Sun Mar 17 16:06:29 JST 2013 kiwamu@debian.or.jp * Upgrade some JHC_EXT_LIBS. I tested compile test only for the patch. Are there any things that I should test something else? -- Kiwamu Okabe