[MacPorts] #58313: "xterm -fa FontSpec" (xfreetype) has some flush trouble (making it unusable)

[MacPorts]

#58313: "xterm -fa FontSpec" (xfreetype) has some flush trouble (making it
unusable)
--------------------+--------------------
 Reporter:  vallon  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  xterm
--------------------+--------------------
 cc: maintainer of xterm

 Tried using "xterm -fa Courier-12" which uses XFreeType/font-config for
 font rendering.  However, there are drawing/flushing issues.  It behaves
 like an XFlush is missing:

 * On the local machine, a new xterm displays a prompt and scroll bars,
 etc.  Typing into the window yield no response, but the input is being
 processed.  If I resize or deactivate the window, the screen updates.  If
 I press return enough times, the screen updates when it scrolls.  If I run
 a command that generates a lot of output, the output is displayed (again,
 seemingly due to scrolling).
 * "ssh linuxhost xterm -fa Mono-12" works fine when displaying back to
 MacPort X11.app.
 * From a linux X11 server, "ssh machost xterm -fa Courier-12" has same
 flushing trouble.

 => It appears it is MacPorts xterm that is the common factor.

 I have removed all xrdb resources to insure it is not sensitive to any of
 my XResources, with no change in behavior.

 {{{
 $ port installed xterm or Xft2
 The following ports are currently installed:
   Xft2 @2.3.3_0 (active)
   xterm @344_1 (active)
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/58313>
MacPorts <https://www.macports.org/>
Ports system for macOS