#if out setting of compress hooks if not using ZLIB

We shouldn't even try to call ssh_packet_set_compress_hooks if zlib
isn't enabled.  This change conditionally compiles it out.

monitor.c

@@ -1965,10 +1965,12 @@ monitor_init(void)
 		mon->m_zback = mm_create(NULL, MM_MEMSIZE);
 		mon->m_zlib = mm_create(mon->m_zback, 20 * MM_MEMSIZE);
 
+#ifndef WIN32_ZLIB_NO
 		/* Compression needs to share state across borders */
 		ssh_packet_set_compress_hooks(ssh, mon->m_zlib,
 		    (ssh_packet_comp_alloc_func *)mm_zalloc,
 		    (ssh_packet_comp_free_func *)mm_zfree);
+#endif
 	}
 
 	return mon;