#ifdef _XBT_WIN32 /* defined if this is a windows system, 32bits or 64bits) */
#include <WinDef.h>
typedef DWORD xbt_os_thread_key_t;
#else /* assume that every non-windows system is POSIX-compatible */
#ifdef _XBT_WIN32 /* defined if this is a windows system, 32bits or 64bits) */
#include <WinDef.h>
typedef DWORD xbt_os_thread_key_t;
#else /* assume that every non-windows system is POSIX-compatible */