slight change to file names

SVN=124982

src/runtime/Makefile

@@ -39,7 +39,7 @@ clean:
 %.$O:	%.c
 	$(CC) $<
 
-sys_file.$O:	sys_file.c $(OS_H)
+sys_file.$O:	sys_file.c sys_types.h $(OS_H)
 	$(CC) -D$(GOARCH)_$(GOOS) $<
 
 %.$O:	%.s

src/runtime/sys_file.c

@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 #include "runtime.h"
-#include "sys_structs.h"
+#include "sys_types.h"
 
 void
 sys·readfile(string filein, string fileout, bool okout)