iusec            1352 src/system.c           long isec, iusec;
iusec            1355 src/system.c           iusec = Scm_GetInteger(usec);
iusec            1356 src/system.c           if (isec < 0 || iusec < 0) goto badtv;
iusec            1358 src/system.c           tm->tv_usec = iusec;