glpk problems on cygwin

[John W. Eaton]

On 18-Aug-2008, Jaroslav Hajek wrote:

| I think I may have located the problem. Certain matrix sizes seem to
| be assumed in the __glpk__ DLD function but one is passed incorrectly
| due to a typo in glpk.m.
| Attached is a fix. I've also added proper size checks to __glpk__.cc
| Tatsuro, Jiri, can you verify this indeed fixes the problem?

I applied this change to my archive.

Thanks,

jwe