um: fix UML_LIB_PATH

UML_LIB_PATH is hardcoded to /usr/lib/uml/, on 64bit systems UML_LIB_PATH
needs to be /usr/lib64/uml/.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/um/drivers/xterm.c

@@ -90,7 +90,7 @@ static int xterm_open(int input, int output, int primary, void *d,
 	int pid, fd, new, err;
 	char title[256], file[] = "/tmp/xterm-pipeXXXXXX";
 	char *argv[] = { terminal_emulator, title_switch, title, exec_switch,
-			 "/usr/lib/uml/port-helper", "-uml-socket",
+			 OS_LIB_PATH "/uml/port-helper", "-uml-socket",
 			 file, NULL };
 
 	if (access(argv[4], X_OK) < 0)

arch/um/include/shared/os.h

@@ -29,6 +29,12 @@
 #define OS_ACC_R_OK    4       /* Test for read permission.  */
 #define OS_ACC_RW_OK   (OS_ACC_W_OK | OS_ACC_R_OK) /* Test for RW permission */
 
+#ifdef CONFIG_64BIT
+#define OS_LIB_PATH	"/usr/lib64/"
+#else
+#define OS_LIB_PATH	"/usr/lib/"
+#endif
+
 /*
  * types taken from stat_file() in hostfs_user.c
  * (if they are wrong here, they are wrong there...).

arch/um/os-Linux/main.c

@@ -78,7 +78,7 @@ static void install_fatal_handler(int sig)
 	}
 }
 
-#define UML_LIB_PATH	":/usr/lib/uml"
+#define UML_LIB_PATH	":" OS_LIB_PATH "/uml"
 
 static void setup_env_path(void)
 {