InnoDB: Remove compiler warnings.

innobase/os/os0proc.c:
  Add UT_NOT_USED for parameters in dummy implementations of AWE functions.
sql/ha_innodb.cc:
  Tweak casts to eliminate compiler warnings.

innobase/os/os0proc.c

@@ -292,6 +292,9 @@ os_awe_allocate_physical_mem(
 
 	return(TRUE);	
 #else
+	UT_NOT_USED(n_megabytes);
+	UT_NOT_USED(page_info);
+	
 	return(FALSE);
 #endif
 }
@@ -349,6 +352,8 @@ os_awe_allocate_virtual_mem_window(
 
 	return(ptr);
 #else
+	UT_NOT_USED(size);
+	
 	return(NULL);
 #endif
 }
@@ -476,6 +481,10 @@ os_awe_map_physical_mem_to_window(
 
 	return(TRUE);
 #else
+	UT_NOT_USED(ptr);
+	UT_NOT_USED(n_mem_pages);
+	UT_NOT_USED(page_info);
+
 	return(FALSE);
 #endif
 }	

sql/ha_innodb.cc

@@ -2116,7 +2116,7 @@ innobase_rollback_to_savepoint(
 
         /* TODO: use provided savepoint data area to store savepoint data */
 
-        longlong2str((ulonglong)savepoint, name, 36);
+        longlong2str((ulint)savepoint, name, 36);
 
         error = (int) trx_rollback_to_savepoint_for_mysql(trx, name,
 						&mysql_binlog_cache_pos);
@@ -2145,7 +2145,7 @@ innobase_release_savepoint(
 
         /* TODO: use provided savepoint data area to store savepoint data */
 
-        longlong2str((ulonglong)savepoint, name, 36);
+        longlong2str((ulint)savepoint, name, 36);
 
 	error = (int) trx_release_savepoint_for_mysql(trx, name);
 
@@ -2186,7 +2186,7 @@ innobase_savepoint(
 
         /* TODO: use provided savepoint data area to store savepoint data */
         char name[64];
-        longlong2str((ulonglong)savepoint,name,36);
+        longlong2str((ulint)savepoint,name,36);
 
         error = (int) trx_savepoint_for_mysql(trx, name, (ib_longlong)0);