Goodnight, I find 4 errors in difftime.c file in line 35 and 37 : line 35 : if (sizeof time_t < sizeof double) --> if ( sizeof(time_t) < sizeof(double)) line 37 : if (sizeof time_t < sizeof long_double) --> if (sizeof(time_t) < sizeof(long_double)) excuse me for my english, it is very lad Tanks M. ZHITI