It is an extremely dangerous anti-feature.
>I observed that in OpenBSD 7.5, the configuration of xterm is such that
>xtermcfg.h gets #define OPT_PASTE64 0. A consequence of this is that
>OSC 52 support is compiled out, and a consequence of that is that tmux
>cannot set the primary X selection (for copying text out of a tmux pane)
>via its set-clipboard option, which uses OSC 52.
>
>I encountered this problem as a frustrating silent failure after
>following the instructions at the tmux wiki
>(https://github.com/tmux/tmux/wiki/Clipboard).
>
>Is there a reason that paste64 is configured out, or could we change
>this (e.g. with --enable-paste64) so that OPT_PASTE64 is 1?
>
>--
>Kyle Markley
>
>
