argument type of the attribute-manipulation functions \fBslk_attron\fR,
\fBslk_attroff\fR, \fBslk_attrset\fR to be \fBattr_t\fR, and adds \fBconst\fR
qualifiers.
argument type of the attribute-manipulation functions \fBslk_attron\fR,
\fBslk_attroff\fR, \fBslk_attrset\fR to be \fBattr_t\fR, and adds \fBconst\fR
qualifiers.