-#include <sys/socket.h>
+
+
+#ifndef _MSC_VER
+
#include <sys/types.h>
+#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <netdb.h>
#include <sys/time.h>
#include <fcntl.h>
-#include <sys/utsname.h>
\ No newline at end of file
+#include <sys/utsname.h>
+
+/* this seems to be missing for glibc-2.0.x */
+/* libc5 & glibc-2.1 do have them */
+#ifndef MSG_PEEK
+#define MSG_PEEK 0x02 /* Peek at incoming messages. */
+#endif
+#ifndef MSG_WAITALL
+#define MSG_WAITALL 0x100 /* Wait for a full request. */
+#endif
+
+#endif /* !_MSC_VER */