[cairo] cross-compiling on Linux for Windows

[Tor Lillqvist]

> Yet I've not tried to rebuild it, Fedora Core has mingw32-cairo package.

As has the openSUSE build service,
http://download.opensuse.org/repositories/windows:/mingw:/win32/openSUSE_10.3/noarch/mingw32-cairo-1.8.8-2.2.noarch.rpm
, sources, spec file, and patches (if any) in
http://download.opensuse.org/repositories/windows:/mingw:/win32/openSUSE_10.3/src/mingw32-cairo-1.8.8-2.2.src.rpm

--tml