Index: src/prelude/extras.c
===================================================================
--- src/prelude/extras.c	(revision 7aa257aec5e0711da5735ad9ea7b3b9bb7726176)
+++ src/prelude/extras.c	(revision 201aeb9b7c42eb7c7aa8bc065247bffda4932b33)
@@ -1,3 +1,4 @@
 #include <stddef.h>					// size_t, ptrdiff_t
+#include <stdint.h>					// intX_t, uintX_t, where X is 8, 16, 32, 64
 #include <uchar.h>					// char16_t, char32_t
 #include <wchar.h>					// wchar_t
Index: src/prelude/extras.regx
===================================================================
--- src/prelude/extras.regx	(revision 7aa257aec5e0711da5735ad9ea7b3b9bb7726176)
+++ src/prelude/extras.regx	(revision 201aeb9b7c42eb7c7aa8bc065247bffda4932b33)
@@ -1,4 +1,12 @@
 typedef.* size_t;
 typedef.* ptrdiff_t;
+typedef.* int8_t;
+typedef.* int16_t;
+typedef.* int32_t;
+typedef.* int64_t;
+typedef.* uint8_t;
+typedef.* uint16_t;
+typedef.* uint32_t;
+typedef.* uint64_t;
 typedef.* char16_t;
 typedef.* char32_t;
Index: src/prelude/prelude.cf
===================================================================
--- src/prelude/prelude.cf	(revision 7aa257aec5e0711da5735ad9ea7b3b9bb7726176)
+++ src/prelude/prelude.cf	(revision 201aeb9b7c42eb7c7aa8bc065247bffda4932b33)
@@ -7,6 +7,6 @@
 // Created On       : Sat Nov 29 07:23:41 2014
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Wed Aug 30 07:56:07 2017
-// Update Count     : 93
+// Last Modified On : Mon Sep 25 18:12:15 2017
+// Update Count     : 95
 //
 
@@ -552,4 +552,6 @@
 signed long long int	?+=?( signed long long int &, signed long long int ),	?+=?( volatile signed long long int &, signed long long int );
 unsigned long long int	?+=?( unsigned long long int &, unsigned long long int ), ?+=?( volatile unsigned long long int &, unsigned long long int );
+signed int128		?+=?( signed int128 &, signed int128 ),			?+=?( volatile signed int128 &, signed int128 );
+unsigned int128		?+=?( unsigned int128 &, unsigned int128 ),		?+=?( volatile unsigned int128 &, unsigned int128 );
 
 _Bool			?-=?( _Bool &, _Bool ),					?-=?( volatile _Bool &, _Bool );