3476 static struct sh_vars *initvar(char *name, char *val)  in initvar()  function
3483   return initvar(name, (!val || !*val) ? def : val);  in initvardef()
3620     initvar(magic[ii], "")->flags = VAR_MAGIC|(VAR_INT*('G'!=*magic[ii]));  in subshell_setup()
3625   initvar("PATH", _PATH_DEFPATH);  in subshell_setup()
3633   initvar("HOSTNAME", toybuf);  in subshell_setup()
3635   initvar("HOSTTYPE", uu.machine);  in subshell_setup()
3637   initvar("MACHTYPE", toybuf);  in subshell_setup()
3638   initvar("OSTYPE", uu.sysname);  in subshell_setup()
3641   initvar("OPTERR", "1"); // TODO: test if already exported?  in subshell_setup()
3643     initvar("BASH", s);  in subshell_setup()
3644   initvar("PS2", "> ");  in subshell_setup()
3645   initvar("PS3", "#? ");  in subshell_setup()
3646   initvar("PS4", "+ ");  in subshell_setup()