win32 port on newer Cygwin snapshots (990115)

Hi,

I have created a small patch that makes possible to compile pgsql on newer
Cygwin snapshots (tested on 990115 which is recommended to use - it fixes
some errors in B20.1)

And I have another patch for including <sys/ipc.h> before <sys/sem.h> in
backend/storage/lmgr/proc.c - it is required due the design of cygipc
headers

			Dan

PS: I think there are missing some files in the interfaces/libpgeasy
directory (snapshot via CVS a few hours old)

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Daniel Horak
network and system administrator
e-mail: horak@mmp.plzen-city.cz
privat e-mail: dan.horak@email.cz ICQ:36448176
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