#define scm_cur_inp (scm_root->cur_inp)
#define scm_cur_outp (scm_root->cur_outp)
#define scm_cur_errp (scm_root->cur_errp)
-#define scm_def_inp (scm_root->def_inp)
-#define scm_def_outp (scm_root->def_outp)
-#define scm_def_errp (scm_root->def_errp)
#define scm_cur_loadp (scm_root->cur_loadp)
#ifdef USE_THREADS