Cygwin port

[Jerome Marc]

I read that libjava cannot be built with cygwin because of Windows case
insensitive filesystems. I would like to know if anyone tried the
environment setting : CYGWIN=check_case:strict

With this setting, I can compile whole java classes successfully but found
any trouble while linking the library. Whithout this setting, the building
process stops while compiling Gnu.java.

I just wonder what are the case sensitivity issues whith libjava.