were not supported on Version 7 or BSD versions.
It may be unwise to count on the set of attributes copied
- by <STRONG><A HREF="dup_field.3x.html">dup_field(3x)</A></STRONG> being portable; the System V forms
+ by <STRONG><A HREF="dup_field.3x.html">dup_field(3X)</A></STRONG> being portable; the System V forms
library documents are not very explicit on what gets
copied and was not.