/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/as.exe: cannot execute binary file

Yup there is one remaining issue with wine/cygwin configuration, see:

http://bugs.winehq.org/show_bug.cgi?id=19856

which turns out to be:

http://bugs.winehq.org/show_bug.cgi?id=15679

Simple patch worked out; ok:

$ cd .wine/drive_c/cygwin/usr/i686-pc-cygwin/bin
$ for a in *; do ln -sf ../../../bin/$a; done


Cheers