-dnl is time_t long or long long ?
-AC_DEFINE([TIME_T_IS_LONG], [], [time_t is long])
-AC_DEFINE([TIME_T_IS_LONG_LONG], [], [time_t is long long])
+dnl is time_t 32 of 64 bit ?
+AC_DEFINE([TIME_T_IS_32BIT], [], [time_t is 32bit])
+AC_DEFINE([TIME_T_IS_64BIT], [], [time_t is 64bit])