PATH_SEP         1587 dln.c          	ep = strchr(dp, PATH_SEP[0]);
PATH_SEP         4737 file.c             rb_define_const(rb_cFile, "PATH_SEPARATOR", rb_obj_freeze(rb_str_new2(PATH_SEP)));
PATH_SEP          245 include/ruby/defines.h #define PATH_SEP_CHAR PATH_SEP[0]