Consistently use X_GETTIMEOFDAY
After 7ad730d8, use X_GETTIMEOFDAY() in Initialize() as well as clock_tic(), to fix compilation on non-POSIX systems where the gymnastics that X_GETTIMEOFDAY does are necessary (i.e. Win32)
After 7ad730d8, use X_GETTIMEOFDAY() in Initialize() as well as clock_tic(), to fix compilation on non-POSIX systems where the gymnastics that X_GETTIMEOFDAY does are necessary (i.e. Win32)