S_ISBLK          1122 file.c         #ifndef S_ISBLK
S_ISBLK          1130 file.c         #ifdef S_ISBLK
S_ISBLK          1134 file.c             if (S_ISBLK(st.st_mode)) return Qtrue;
S_ISBLK          1615 file.c         #ifdef S_ISBLK
S_ISBLK          1616 file.c             else if (S_ISBLK(st->st_mode)) {
S_ISBLK          3924 file.c         #ifdef S_ISBLK
S_ISBLK          3925 file.c             if (S_ISBLK(get_stat(obj)->st_mode)) return Qtrue;
S_ISBLK           159 include/ruby/defines.h #ifndef S_ISBLK