Silence compiler warning about unused variable on Windows.

diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index 729730aa8cc66810756fe7e8cdb567e058756202..1b409d1e44ff05007de14683a04f2c18b0dfb300 100644 (file)
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -1632,7 +1632,9 @@ keep_going:                                               /* We will come back to here until there is
 
                                        if (!IS_AF_UNIX(addr_cur->ai_family))
                                        {
+#ifndef WIN32
                                                int                     on = 1;
+#endif
                                                int                     usekeepalives = useKeepalives(conn);
                                                int                     err = 0;