X11: Stop reporting support for COMPOUND_TEXT

README.md

@@ -206,6 +206,7 @@ information on what to include when reporting a bug.
 - [X11] Bugfix: Gamma ramp setting via RandR did not validate ramp size
 - [X11] Bugfix: Key name string encoding depended on current locale (#981,#983)
 - [X11] Bugfix: Incremental reading of selections was not supported (#275)
+- [X11] Bugfix: Selection I/O reported but did not support `COMPOUND_TEXT`
 - [Linux] Moved to evdev for joystick input (#906,#1005)
 - [Linux] Bugfix: Event processing did not detect joystick disconnection (#932)
 - [Linux] Bugfix: The joystick device path could be truncated (#1025)

src/x11_init.c

@@ -661,10 +661,7 @@ static GLFWbool initExtensions(void)
 
     // String format atoms
     _glfw.x11.NULL_ = XInternAtom(_glfw.x11.display, "NULL", False);
-    _glfw.x11.UTF8_STRING =
-        XInternAtom(_glfw.x11.display, "UTF8_STRING", False);
-    _glfw.x11.COMPOUND_STRING =
-        XInternAtom(_glfw.x11.display, "COMPOUND_STRING", False);
+    _glfw.x11.UTF8_STRING = XInternAtom(_glfw.x11.display, "UTF8_STRING", False);
     _glfw.x11.ATOM_PAIR = XInternAtom(_glfw.x11.display, "ATOM_PAIR", False);
 
     // Custom selection property atom

src/x11_window.c

@@ -683,9 +683,7 @@ static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
 {
     int i;
     char* selectionString = NULL;
-    const Atom formats[] = { _glfw.x11.UTF8_STRING,
-                             _glfw.x11.COMPOUND_STRING,
-                             XA_STRING };
+    const Atom formats[] = { _glfw.x11.UTF8_STRING, XA_STRING };
     const int formatCount = sizeof(formats) / sizeof(formats[0]);
 
     if (request->selection == _glfw.x11.PRIMARY)
@@ -707,7 +705,6 @@ static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
         const Atom targets[] = { _glfw.x11.TARGETS,
                                  _glfw.x11.MULTIPLE,
                                  _glfw.x11.UTF8_STRING,
-                                 _glfw.x11.COMPOUND_STRING,
                                  XA_STRING };
 
         XChangeProperty(_glfw.x11.display,
@@ -852,9 +849,7 @@ static const char* getSelectionString(Atom selection)
 {
     size_t i;
     char** selectionString = NULL;
-    const Atom targets[] = { _glfw.x11.UTF8_STRING,
-                             _glfw.x11.COMPOUND_STRING,
-                             XA_STRING };
+    const Atom targets[] = { _glfw.x11.UTF8_STRING, XA_STRING };
     const size_t targetCount = sizeof(targets) / sizeof(targets[0]);
 
     if (selection == _glfw.x11.PRIMARY)