[LyX/master] Make bookmarks display configurable

[Pavel Sanda]

On Wed, Apr 07, 2021 at 04:11:39PM +0200, Jean-Marc Lasgouttes wrote:
> commit 0f0ad1f715b914d424b6edd01aad2e559e8e85f5
> Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
> Date:   Tue Apr 6 15:19:12 2021 +0200
> 
>     Make bookmarks display configurable
>     
>     Introduce a GUI-less LyXRC member bookmarks_visibility. This is
>     experimental and will not be documented for 2.4.0. Having the code
>     present will allow to (1) improve it gradually and (2) fix the many
>     bookmarks bugs that it exposes.
>     
>     The corresponding tag is \experimental:bookmarks_visibility, which is
>     intentionally weird.
>     
>     Three possible values:
>     
>     * none: no bookmark display
>     * margin: display the bookmark in margin
>     * inline: display the bookmark at cursor position.
>     
>     The default margin has been made wider so that there is room for the
>     bookmark. This was necessary anyway. The margin bookmark is now
>     displayed correctly in full screen with limited text width.
>     
>     Margin display still needs some improvements when several bookmarks
>     are on the same row.
>     
>     Mostly fixes bug #2496.

Maybe related?:

LyXRC.cpp: In member function 'void lyx::LyXRC::write(std::ostream&, bool, const string&) const':
LyXRC.cpp:1755:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (tag != RC_LAST)
   ^~
LyXRC.cpp:1758:2: note: here
  case RC_MAC_DONTSWAP_CTRL_META:
  ^~~~
At global scope:
cc1plus: warning: unrecognized command line option '-Wno-deprecated-copy'

Pavel