Add check that double and long long (both 64 bit) have same alignment.

src/library/ooc/oocLowLReal.Mod

@@ -1,6 +1,8 @@
 (*	$Id: LowLReal.Mod,v 1.6 1999/09/02 13:15:35 acken Exp $	*)
 MODULE oocLowLReal;
 
+(* ToDo. support 64 bit builds *)
+
 (*
     LowLReal -  Gives access to the underlying properties of the type LONGREAL
     for IEEE double-precision numbers.

src/tools/make/configure.c

@@ -351,6 +351,7 @@ void testSystemDotH() {
   assert(((char*)&s.x  - (char*)&s)  == MIN(alignment, sizeof(SET)), "Alignment of SET differs from alignmnet of LONGINT.");
   assert(((char*)&p.x  - (char*)&p)  == addressSize, "Alignment of data pointer differs from address size.");
   assert(((char*)&f.x  - (char*)&f)  == addressSize, "Alignment of data pointer differs from address size.");
+  assert(((char*)&lr.x - (char*)&lr) == ((char*)&ll.x - (char*)&ll), "Alignment of LONGREAL differs from alignment of long long.");
 
   assert(sizeof(rec0) ==  1, "CHAR wrapped in record aligns differently to CHAR alone.");
   assert(sizeof(rec2) == 65, "CHAR array wrapped in record aligns differently to CHAR array alone.");