Remove a circular dependency in headers

minix/include/minix/ipc.h

@@ -1,11 +1,12 @@
 #ifndef _IPC_H
 #define _IPC_H
 
+#include <sys/types.h>
+#include <sys/signal.h>
+
 #include <minix/ipcconst.h>
 #include <minix/type.h>
 #include <minix/const.h>
-#include <sys/signal.h>
-#include <sys/types.h>
 
 /*==========================================================================* 
  * Types relating to messages. 						    *

minix/include/minix/type.h

@@ -1,20 +1,19 @@
 #ifndef _TYPE_H
 #define _TYPE_H
 
-#include <sys/types.h>
-#include <sys/endian.h>
-
-#include <machine/multiboot.h>
-
 #ifndef _MINIX_SYS_CONFIG_H
 #include <minix/sys_config.h>
 #endif
 
-#include <sys/sigtypes.h>
-
 #include <stdint.h>
 #include <stddef.h>
 
+#include <sys/sigtypes.h>
+#include <sys/times.h>
+#include <sys/timespec.h>
+
+#include <machine/multiboot.h>
+
 /* Type definitions. */
 typedef unsigned int vir_clicks; 	/*  virtual addr/length in clicks */
 typedef unsigned long phys_bytes;	/* physical addr/length in bytes */