emacs-30 8c251a4c419: ; Mention in PROBLEMS issues with long popup menus

[Eli Zaretskii]

branch: emacs-30
commit 8c251a4c4194802a2b69165d699c3ba43d45c401
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    ; Mention in PROBLEMS issues with long popup menus
    
    * etc/PROBLEMS: Problems with very long popup menus on Lucid
    builds.  (Bug#72791)
---
 etc/PROBLEMS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 4d6927705b1..841294ec7f1 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -1984,6 +1984,12 @@ To check thoroughly for such resource specifications, 
use 'xrdb
 -query' to see what resources the X server records, and also look at
 the user's ~/.Xdefaults and ~/.Xdefaults-* files.
 
+*** In Emacs built with Lucid cannot display very long popup menus.
+
+Very long popup menus cannot be shown in their entirety, and don't have
+a scroll bar to scroll them vertically.  Lucid does not support this
+feature.  A workaround is to use other toolkits (GTK, LessTif, etc.).
+
 *** Emacs running under X Window System does not handle mouse clicks.
 *** 'emacs -geometry 80x20' finds a file named '80x20'.