Problem:    Deprecation warning causes build failure.
Solution:   Suppress deprecation warning. (closes #11503)

Problem:    Compiler warning for redefining HAVE_DUP.
Solution:   Undefine HAVE_DUP if needed. (Ozaki Kiichi, closes #11484)

Problem:    Compiling with Perl on Mac 12 fails.
Solution:   Suppress infinite warnings. (closes #11499)

Problem:    Wrong counts in macro comment.
Solution:   Update the value counts. (closes #11480)

Problem:    Various typos.
Solution:   Correct typos. (closes #11432)

Problem:    The <Home> key in tmux doesn't work when 'term' is set to "xterm".
            (Dominique Pellé)
Solution:   Only use '@' in a termcap key entry for "1" when ";" follows.
            (closes #11429)

Problem:    If 'endofline' is set the CTRL-Z may be written in the wrong
            place.
Solution:   Write CTRL-Z at the end of the file.  Update the help to explain
            the possibilities better. (Ken Takata, closes #11486)

Problem:    Cannot drag an entry in the tabpage line.
Solution:   Clear dragwin instead of got_click. (closes #11483,
            closes #11482)

Problem:    Crash when using win_move_separator() in other tab page.
Solution:   Check for valid window in current tab page.
            (closes #11479, closes #11427)

Problem:    Mouse drag test fails.
Solution:   Only reset the mouse click flag when actually switching to another
            tab page.  Disable test that keeps failing.