Feature Request: Build with --enable-block-select
XTerm 397 added support for selecting a rectangular block of text (https://invisible-island.net/xterm/xterm.log.html#xterm_397).
I have tested the patch and found no problems. Though it is a little crude, it is a welcome feature.
This is already included, all we need is to enable the build flag as I
have done in here with --enable-block-select
.