--- Libc/Libc-763.11/include/stddef.h
+++ Libc/Libc-583/include/stddef.h
@@ -109,12 +109,12 @@
 
 #ifdef __STDDEF_H__
 #if defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 5 || __GNUC__ > 3)
-#ifndef __offsetof	/* Deprecated: for source compatibility only */
+#ifndef __offsetof	/* Deprecated: for source compatability only */
 #define __offsetof(type, field) __builtin_offsetof(type, field)
 #endif
 #define offsetof(type, field) __builtin_offsetof(type, field)
 #else /* ! (gcc >= 3.5) */
-#ifndef __offsetof	/* Deprecated: for source compatibility only */
+#ifndef __offsetof	/* Deprecated: for source compatability only */
 #define __offsetof(type, field) ((size_t)(&((type *)0)->field))
 #endif
 #define offsetof(type, field) ((size_t)(&((type *)0)->field))