Port / test under Cygwin

[dspinellis]

The following programs get compiled.

./bash/bash.exe
./bash/bashversion.exe
./bash/builtins/mkbuiltins.exe
./bash/mksignames.exe
./bash/mksyntax.exe
./diffutils/src/cmp.exe
./diffutils/src/diff.exe
./diffutils/src/diff3.exe
./diffutils/src/sdiff.exe
./grep/src/grep.exe

So the problem is in coreutils.

[dspinellis]

Installed programs fail to run.

$ dgsh -c 'echo hi | cat'
/cygdrive/c/dds/home/libexec/dgsh/bash: cannot duplicate fd 3 to fd 0: Bad file descriptor
C:/dds/home/libexec/dgsh/bash.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory
C:/dds/home/libexec/dgsh/bash.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory

[dspinellis]

Also make setup-test-negotiate fails.