LP:600744 - XtraDB compile error with VS 10 64-bit

Compiling XtraDB with VS 2010 on 64-bit Windows fails with several errors all of the type:

Error 10 error C2440: 'initializing' : cannot convert from 'ulint *' to 'unsigned long *' C:\Users\hakan\work\monty_program\maria-5.2\storage\xtradb\handler\ha_innodb.cc 10410

The code in question is:

Error 10 error C2440: 'initializing' : cannot convert from 'ulint *' to 'unsigned long *' C:\Users\hakan\work\monty_program\maria-5.2\storage\xtradb\handler\ha_innodb.cc 10410

static MYSQL_SYSVAR_ULONG(use_purge_thread, srv_use_purge_thread,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"Number of purge devoted threads. #### over 1 is EXPERIMENTAL ####",
NULL, NULL, 1, 0, 64, 0);

And line 10410 is
NULL, NULL, 1, 0, 64, 0);