--- Libc/Libc-1244.20.1/include/assert.h
+++ Libc/Libc-583/include/assert.h
@@ -66,27 +66,19 @@
 __END_DECLS
 
 #define assert(e)  \
-    ((void) ((e) ? ((void)0) : __assert (#e, __FILE__, __LINE__)))
+    ((void) ((e) ? 0 : __assert (#e, __FILE__, __LINE__)))
 #define __assert(e, file, line) \
     ((void)printf ("%s:%u: failed assertion `%s'\n", file, line, e), abort())
 
 #else /* __GNUC__ */
 
 __BEGIN_DECLS
-void __assert_rtn(const char *, const char *, int, const char *) __dead2 __disable_tail_calls;
-#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1070)
+void __assert_rtn(const char *, const char *, int, const char *) __dead2;
 void __eprintf(const char *, const char *, unsigned, const char *) __dead2;
-#endif
 __END_DECLS
 
-#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && ((__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__-0) < 1070)
 #define __assert(e, file, line) \
     __eprintf ("%s:%u: failed assertion `%s'\n", file, line, e)
-#else
-/* 8462256: modified __assert_rtn() replaces deprecated __eprintf() */
-#define __assert(e, file, line) \
-    __assert_rtn ((const char *)-1L, file, line, e)
-#endif
 
 #if __DARWIN_UNIX03
 #define	assert(e) \
@@ -98,14 +90,3 @@
 
 #endif /* __GNUC__ */
 #endif /* NDEBUG */
-
-#ifndef _ASSERT_H_
-#define _ASSERT_H_
-
-#ifndef __cplusplus
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
-#define static_assert _Static_assert
-#endif /* __STDC_VERSION__ */
-#endif /* !__cplusplus */
-
-#endif /* _ASSERT_H_ */