[tlbuild] kpsewhich problem [Cygwin]

[Akira Kakuto]

Hi Angelo,

> It hangs, no output
> 
> > Can you run kpsewhich under a debugger and see what it's doing?
> 
> I am afraid but I haven't much experience using GDB. :-(
> 
> Besides this, I do not know which arguments it needs ('./kpsewhich' says 
> "Missing argument. Try `kpsewhich --help' for more information."). and 
> it is stripped. Sorry!

It is quite probable that my change in Kpathsea
to restrict writing files is doing bad things on cygwin,
since I'm not familiar with cygwin.
Does pdftex -ini plain \\dump run or crash?

If it is ok, then try
pdftex --fmt=plain test

%
% test.tex
%
\openout1=foo.bat
\write1{a}
\closeout1
\bye

If it stops with an error, it is ok.

Thanks,
Akira