diff --git a/lauxlib.c b/lauxlib.c
index fe99aca1..99a63092 100644
--- a/lauxlib.c
+++ b/lauxlib.c
@@ -28,12 +28,6 @@
 #include "llimits.h"
 
 
-#if !defined(MAX_SIZET)
-/* maximum value for size_t */
-#define MAX_SIZET	((size_t)(~(size_t)0))
-#endif
-
-
 /*
 ** {======================================================
 ** Traceback
diff --git a/lauxlib.h b/lauxlib.h
index 6c5ecbb7..4be008b9 100644
--- a/lauxlib.h
+++ b/lauxlib.h
@@ -236,30 +236,6 @@ typedef struct luaL_Stream {
 
 /* }====================================================== */
 
-/*
-** {==================================================================
-** "Abstraction Layer" for basic report of messages and errors
-** ===================================================================
-*/
-
-/* print a string */
-#if !defined(lua_writestring)
-#define lua_writestring(s,l)   fwrite((s), sizeof(char), (l), stdout)
-#endif
-
-/* print a newline and flush the output */
-#if !defined(lua_writeline)
-#define lua_writeline()        (lua_writestring("\n", 1), fflush(stdout))
-#endif
-
-/* print an error message */
-#if !defined(lua_writestringerror)
-#define lua_writestringerror(s,p) \
-        (fprintf(stderr, (s), (p)), fflush(stderr))
-#endif
-
-/* }================================================================== */
-
 
 /*
 ** {============================================================
diff --git a/llimits.h b/llimits.h
index 2954d2ef..57e7bed7 100644
--- a/llimits.h
+++ b/llimits.h
@@ -244,4 +244,29 @@ typedef unsigned long l_uint32;
 #endif
 
 
+/*
+** {==================================================================
+** "Abstraction Layer" for basic report of messages and errors
+** ===================================================================
+*/
+
+/* print a string */
+#if !defined(lua_writestring)
+#define lua_writestring(s,l)   fwrite((s), sizeof(char), (l), stdout)
 #endif
+
+/* print a newline and flush the output */
+#if !defined(lua_writeline)
+#define lua_writeline()        (lua_writestring("\n", 1), fflush(stdout))
+#endif
+
+/* print an error message */
+#if !defined(lua_writestringerror)
+#define lua_writestringerror(s,p) \
+        (fprintf(stderr, (s), (p)), fflush(stderr))
+#endif
+
+/* }================================================================== */
+
+#endif
+
diff --git a/lstrlib.c b/lstrlib.c
index 97d974f8..ab33bffe 100644
--- a/lstrlib.c
+++ b/lstrlib.c
@@ -41,8 +41,6 @@
 ** Some sizes are better limited to fit in 'int', but must also fit in
 ** 'size_t'. (We assume that 'lua_Integer' cannot be smaller than 'int'.)
 */
-#define MAX_SIZET	((size_t)(~(size_t)0))
-
 #define MAXSIZE  \
 	(sizeof(size_t) < sizeof(int) ? MAX_SIZET : (size_t)(INT_MAX))