what i learned making a gcj cross-compile environment fortarget=i386-cygwin

[Jeff Sturm]

If you're attempting to build a mingw cross compiler, I recommend
using one of the contributed scripts to download, configure and build the
bintuils, runtime and gcc.  That'll get you started on the right
foot.  Then you'll have a cross environment to build a new compiler.

Similarly, for cygwin there used to be a unified source tree you could
download for cross compiling.

Libtool should never attempt to use `cygpath' nor lib.exe in a cross
build.  Are you saying libtool worked in libstdc++ and zlib but failed in
libjava?

Jeff