// This list of options is ONLY for those defined by the
// "IEEE Std 1003.1, 2004 Edition", "ISO/IEC 9945:2003",
// or "Version 2 of the Single Unix Specification".
+ //
+ // It may be time to re-think the existance of this list.
+ // In the meantime, please do not add to it. The list is
+ // intended to ONLY contain flags defined by the POSIX and UNIX
+ // standards published by The Open Group, IEEE, and ISO.
if(!strchr("aAdefgGlnoptuU", *flagptr)) not_pure_unix = 1;
switch(*flagptr){