rpl_socket on windows

[Sam Steingold]

with clisp built with the latest gnulib:
(defparameter *server* (socket-server))
- success, rpl_socket (domain=2, type=1, protocol=0) is called.
(socket-connect (socket-server-port *server*) "localhost" :timeout 0)
failure the same rpl_socket (domain=2, type=1, protocol=0) is called:
*** - POSIX library error 0: No error

[4]> (socket-connect (socket-server-port *server*) "localhost" :timeout 0)

Breakpoint 18, 0x0055ec4a in rpl_socket (domain=2, type=1, protocol=0)
    at ../../src/gllib/w32sock.h:58
58            errno = (err > 10000 && err < 10025) ? err - 10000 : err;
(gdb) s
0x00560f1d in gl_sockets_startup (version=257) at ../../src/gllib/w32sock.h:58
58            errno = (err > 10000 && err < 10025) ? err - 10000 : err;
(gdb) finish
Run till exit from #0  0x00560f1d in gl_sockets_startup (version=257)
    at ../../src/gllib/w32sock.h:58
0x0055ec56 in rpl_socket (domain=2, type=1, protocol=0)
    at ../../src/gllib/w32sock.h:58
58            errno = (err > 10000 && err < 10025) ? err - 10000 : err;
Value returned is $6 = 0
(gdb) s
0x004f571a in ANSIC_error () at ../src/lispbibl.d:14619
14619     if (!symbolp(obj))

for some reason gdb seems not to be working properly.
clisp (and gnulib) was compiled with i686-w64-mingw32-gcc.
CYGWIN_NT-5.2-WOW64 sds 1.7.9(0.237/5/3) 2011-03-29 10:10 i686 Cygwin

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Sam Steingold (http://sds.podval.org/) on CentOS release 5.6 (Final) X 
11.0.60900031
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