Scm_SysSelect    2742 src/gauche.h   SCM_EXTERN ScmObj Scm_SysSelect(ScmObj rfds, ScmObj wfds, ScmObj efds,
Scm_SysSelect    2691 src/syslib.c   SCM_RESULT = Scm_SysSelect(rfds, wfds, efds, timeout);