cygwin gfortran segfaulting on valid write statements

[worsafe@bellsouth.net]

I'm getting segfaults in valid write statements Using current cygwin 
gfortran (--version reports 9.3.0). This is with old code that runs on 
current debian stable and was running on cygwin a few years ago. I have 
been unable to construct a simple example for a bug report.

I would like to try downgrading the gfortran version, but see 6 
different versions of gcc-fortran and 11 versions of libgfortran in the 
cygwin repository. Can someone recommend a combination?