PATCH: PostgreSQL client libraries with MinGW (or -mno-cygwin)

Hello,

after really little porting efforts, I am pleased to announce the first
running Version of libpq and libecpg under MinGW.

Why MinGW? you might ask, since there is this fine port to Cygwin. Just
because there is no Gtk for Cygwin, and Gtk(+|--) successfully run with
MinGW.

While most parts of it could definitely go into main sources, some parts
should not (e.g. exporting snprintf, unconditionally linking against
wsock32) but are needed for MinGW.

Yours
Christof

PS: MinGW is a minimalist runtime environment for Win32 which does not
emulate POSIX conformance.
PostgreSQL is a full featured OO-SQL database under a Berkeley
license.

Size?
-rwxr-xr-x 1 christof 544 53248 Jul 2 14:37 pq2_2.dll
-rwxr-xr-x 1 christof 544 31232 Jul 2 10:45 ecpg3_3.dll