From 4b945a3086011b6a59b5aef434cdbe8cda96c2de Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Sat, 8 Oct 2022 17:59:06 +0200
Subject: Wayland/X11 hybrid: use "bool fl_disable_wayland;" declaration.

---
 src/Fl.cxx | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

(limited to 'src/Fl.cxx')

diff --git a/src/Fl.cxx b/src/Fl.cxx
index 29f3f5839..30fe9a968 100644
--- a/src/Fl.cxx
+++ b/src/Fl.cxx
@@ -2111,14 +2111,19 @@ void fl_close_display()
   Fl::screen_driver()->close_display();
 }
 
-/** Prevent the FLTK library from using its wayland backend.
- Call this early in your main(), before fl_open_display() runs, or any window is created, or the screen is accessed.
- This function has no effect on non-Wayland platforms.
+#ifdef FL_DOXYGEN
+/** Prevent the FLTK library from using its Wayland backend and forces it to use its X11 backend.
+ Put this declaration somewhere in your code outside the body of any function  :
+ \code
+ FL_EXPORT bool fl_disable_wayland = true;
+ \endcode
+ This declaration makes sure source code developed for FLTK 1.3, including X11-specific code,
+ will build and run with FLTK 1.4 and its Wayland platform with this single source code level change.
+ This declaration has no effect on non-Wayland platforms.
+ Don't put this declaration if you want the Wayland backend to be used when it's available.
  */
-void fl_disable_wayland()
-{
-  Fl::system_driver()->disable_wayland();
-}
+FL_EXPORT bool fl_disable_wayland = true;
+#endif // FL_DOXYGEN
 
 FL_EXPORT Window fl_xid_(const Fl_Window *w) {
   Fl_X *temp = Fl_X::i(w);
-- 
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