diff --git a/src/include/c.h b/src/include/c.h
index b6a9697..f7ea3a5 100644
*** a/src/include/c.h
--- b/src/include/c.h
*************** typedef NameData *Name;
*** 843,874 ****
   *	memset() functions.  More research needs to be done, perhaps with
   *	MEMSET_LOOP_LIMIT tests in configure.
   */
! #define MemSet(start, val, len) \
! 	do \
! 	{ \
! 		/* must be void* because we don't know if it is integer aligned yet */ \
! 		void   *_vstart = (void *) (start); \
! 		int		_val = (val); \
! 		Size	_len = (len); \
! \
! 		if ((((uintptr_t) _vstart) & LONG_ALIGN_MASK) == 0 && \
! 			(_len & LONG_ALIGN_MASK) == 0 && \
! 			_val == 0 && \
! 			_len <= MEMSET_LOOP_LIMIT && \
! 			/* \
! 			 *	If MEMSET_LOOP_LIMIT == 0, optimizer should find \
! 			 *	the whole "if" false at compile time. \
! 			 */ \
! 			MEMSET_LOOP_LIMIT != 0) \
! 		{ \
! 			long *_start = (long *) _vstart; \
! 			long *_stop = (long *) ((char *) _start + _len); \
! 			while (_start < _stop) \
! 				*_start++ = 0; \
! 		} \
! 		else \
! 			memset(_vstart, _val, _len); \
! 	} while (0)
  
  /*
   * MemSetAligned is the same as MemSet except it omits the test to see if
--- 843,849 ----
   *	memset() functions.  More research needs to be done, perhaps with
   *	MEMSET_LOOP_LIMIT tests in configure.
   */
! #define MemSet(start, val, len) memset(start, val, len)
  
  /*
   * MemSetAligned is the same as MemSet except it omits the test to see if
*************** typedef NameData *Name;
*** 876,901 ****
   * that the pointer is suitably aligned (typically, because he just got it
   * from palloc(), which always delivers a max-aligned pointer).
   */
! #define MemSetAligned(start, val, len) \
! 	do \
! 	{ \
! 		long   *_start = (long *) (start); \
! 		int		_val = (val); \
! 		Size	_len = (len); \
! \
! 		if ((_len & LONG_ALIGN_MASK) == 0 && \
! 			_val == 0 && \
! 			_len <= MEMSET_LOOP_LIMIT && \
! 			MEMSET_LOOP_LIMIT != 0) \
! 		{ \
! 			long *_stop = (long *) ((char *) _start + _len); \
! 			while (_start < _stop) \
! 				*_start++ = 0; \
! 		} \
! 		else \
! 			memset(_start, _val, _len); \
! 	} while (0)
! 
  
  /*
   * MemSetTest/MemSetLoop are a variant version that allow all the tests in
--- 851,857 ----
   * that the pointer is suitably aligned (typically, because he just got it
   * from palloc(), which always delivers a max-aligned pointer).
   */
! #define MemSetAligned(start, val, len) memset(start, val, len)
  
  /*
   * MemSetTest/MemSetLoop are a variant version that allow all the tests in
*************** typedef NameData *Name;
*** 911,925 ****
  	MEMSET_LOOP_LIMIT != 0 && \
  	(val) == 0 )
  
! #define MemSetLoop(start, val, len) \
! 	do \
! 	{ \
! 		long * _start = (long *) (start); \
! 		long * _stop = (long *) ((char *) _start + (Size) (len)); \
! 	\
! 		while (_start < _stop) \
! 			*_start++ = 0; \
! 	} while (0)
  
  
  /*
--- 867,873 ----
  	MEMSET_LOOP_LIMIT != 0 && \
  	(val) == 0 )
  
! #define MemSetLoop(start, val, len) memset(start, val, len)
  
  
  /*