--- linux/include/linux/string.h.foo	Wed Jun 21 14:47:22 2000
+++ linux/include/linux/string.h	Wed Jun 21 14:49:17 2000
@@ -4,6 +4,8 @@
 #include <linux/types.h>	/* for size_t */
 #include <linux/stddef.h>	/* for NULL */
 
+#ifdef __KERNEL__
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -79,5 +81,7 @@
 #ifdef __cplusplus
 }
 #endif
+
+#endif /* __KERNEL__ */
 
 #endif /* _LINUX_STRING_H_ */