[libcroco-list] Dependency among modules

[Kang Jeong-Hee <Keizi mail co kr>]

layeng has dependency upon seleng, right?
cr-lay-eng.c, for example, use CRSelEng in struct
without any conditional block.

With a temporary breakage of build of seleng,
I tried to build libcroco turning off seleng.
and layeng raise a breakage by seleng-dependency.

I suppose that libcroco have to turn off layeng
when seleng is off.

thx,
kz.