Log message:
I'll not work here anymore.

Log message:
Update rcairo to 1.7.0.

Release 1.7.0 (2008-08-16) Kouhei Sutou <kou@cozmixng.org>)
===========================================================

Features
--------
  * Support cairo 1.7.4.
  * Add new methods:
    * Cairo::Context#destroy
    * Cairo::Surface#destroy
    * Cairo.satisfied_version?
  * Resupport ruby 1.9. (suggested by Paul van Tilburg)
  * Fix README. (suggested by Davide Rambaldi)

Log message:
Update rcairo to 1.6.3.

Release 1.6.3 (2008-07-19) Kouhei Sutou <kou@cozmixng.org>)
===========================================================

Features
--------
  * Fix build failure on Debian GNU/Linux. (reported by James Healy)
  * Fix GC failure with Ruby 1.8.7. (reported by James Healy)
  * Improve building on MacOS X. (suggested by Carsten Bormann)
  * Fix install location of cairo.so. (suggested by OBATA Akio)

Log message:
Update rcairo to 1.6.2.
While here, catch up to ruby 1.8.7.

Release 1.6.2 (2008-06-14) Kouhei Sutou <kou@cozmixng.org>)
===========================================================

Features
--------
  * Fix build failure on MacOS X.
  * Fix build failure on 64bit Linux.
  * Fix build failure with old Ruby.
  * Fix build failure with Ruby 1.9.

Log message:
Update rcairo to 1.6.1.

Features
--------
  * Fix Quartz related bugs. (thanks to kimura wataru)
  * Support PKG_CONFIG_LIBDIR. (thanks to OBATA Akio)
  * Support RubyGems for mswin32.

Log message:
gem free version of graphics/ruby-rcairo,  just for my fun.
while here, taken patch form upstream to honer PKG_CONFIG_LIBDIR.