diff -dur boost_1_51_0/tools/build/v2/engine/filent.c boost_1_51_0--Win8Compat/tools/build/v2/engine/filent.c
--- boost_1_51_0/tools/build/v2/engine/filent.c	2012-04-25 21:35:55.000000000 -0600
+++ boost_1_51_0--Win8Compat/tools/build/v2/engine/filent.c	2012-08-20 11:26:21.913323100 -0600
@@ -79,7 +79,7 @@
         PATHNAME f;
         string filespec[ 1 ];
         string filename[ 1 ];
-        long handle;
+        intptr_t handle;
         int ret;
         struct _finddata_t finfo[ 1 ];
         LIST * files = L0;
diff -dur boost_1_51_0/tools/build/v2/engine/mem.h boost_1_51_0--Win8Compat/tools/build/v2/engine/mem.h
--- boost_1_51_0/tools/build/v2/engine/mem.h	2011-06-06 14:36:21.000000000 -0600
+++ boost_1_51_0--Win8Compat/tools/build/v2/engine/mem.h	2012-08-20 11:25:50.016665400 -0600
@@ -62,6 +62,7 @@
 #else
 
     /* Standard C memory allocation. */
+    #include <stdlib.h>
     #define bjam_malloc_x(s) malloc(s)
     #define bjam_calloc_x(n,s) calloc(n,s)
     #define bjam_realloc_x(p,s) realloc(p,s)