We have a machine.h for each platform just because of BLCKSZ, and every

platform with a machine.h has the same BLCKSZ?

Consolidate machine.h into config.h

src/include/config.h

@@ -4,6 +4,9 @@
    eventual use of autoconf to build the server 
 */
 
+#define BLCKSZ	8192
+
+
 #if defined(win32)
 #  define WIN32
 #  define NO_UNISTD_H
@@ -30,7 +33,6 @@
 #  define NO_VFORK
 #endif
 
-
 /*  Debug and various "defines" that should be documented */
 
 /* found in function aclparse() in src/backend/utils/adt/acl.c */