[luatex] configure error on mingw

[T T]

Rev. 3517 doesn't compile on mingw:

...
checking whether ln -s works... no, using cp -p
configure: error: You could use `--without-ln-s' to build without
working `ln -s'

but how can I pass this option? The following doesn't work:

>sh build.sh --without-ln-s
Your make is a GNU-make; I will use that
ERROR: invalid build.sh parameter: --without-ln-s

Cheers,

Tomek