diff --git a/include/glatter/glatter.h b/include/glatter/glatter.h
index 764f05a..5aa318f 100644
--- a/include/glatter/glatter.h
+++ b/include/glatter/glatter.h
@@ -193,6 +193,8 @@ GLATTER_INLINE_OR_NOT void  glatter_bind_owner_to_current_thread(void);
 
 #endif
 
+#include "glatter_qt_compat.h"
+
 
 #ifdef __cplusplus
 }
diff --git a/include/glatter/glatter_qt_compat.h b/include/glatter/glatter_qt_compat.h
new file mode 100644
index 0000000..1479b75
--- /dev/null
+++ b/include/glatter/glatter_qt_compat.h
@@ -0,0 +1,129 @@
+/*
+ * When glatter includes GLX headers on X11, Xlib pulls in macros that collide with Qt event enums and types.
+ * Clean them up only when Qt is present and Xlib was included via glatter to avoid altering other consumers.
+ */
+#if defined(_X11_XLIB_H_) && (defined(QT_VERSION) || defined(QT_CORE_LIB) || defined(QT_GUI_LIB) || (defined(__cplusplus) && defined(__has_include) && __has_include(<QtCore/qglobal.h>)))
+#  if defined(Bool)
+#    undef Bool
+#  endif
+#  if defined(CursorShape)
+#    undef CursorShape
+#  endif
+#  if defined(None)
+#    undef None
+#  endif
+#  if defined(Status)
+#    undef Status
+#  endif
+#  if defined(FontChange)
+#    undef FontChange
+#  endif
+#  if defined(KeyPress)
+#    undef KeyPress
+#  endif
+#  if defined(KeyRelease)
+#    undef KeyRelease
+#  endif
+#  if defined(KeyPressMask)
+#    undef KeyPressMask
+#  endif
+#  if defined(KeyReleaseMask)
+#    undef KeyReleaseMask
+#  endif
+#  if defined(ButtonPress)
+#    undef ButtonPress
+#  endif
+#  if defined(ButtonRelease)
+#    undef ButtonRelease
+#  endif
+#  if defined(ButtonPressMask)
+#    undef ButtonPressMask
+#  endif
+#  if defined(ButtonReleaseMask)
+#    undef ButtonReleaseMask
+#  endif
+#  if defined(EnterNotify)
+#    undef EnterNotify
+#  endif
+#  if defined(LeaveNotify)
+#    undef LeaveNotify
+#  endif
+#  if defined(FocusIn)
+#    undef FocusIn
+#  endif
+#  if defined(FocusOut)
+#    undef FocusOut
+#  endif
+#  if defined(KeymapNotify)
+#    undef KeymapNotify
+#  endif
+#  if defined(Expose)
+#    undef Expose
+#  endif
+#  if defined(GraphicsExpose)
+#    undef GraphicsExpose
+#  endif
+#  if defined(NoExpose)
+#    undef NoExpose
+#  endif
+#  if defined(VisibilityNotify)
+#    undef VisibilityNotify
+#  endif
+#  if defined(CreateNotify)
+#    undef CreateNotify
+#  endif
+#  if defined(DestroyNotify)
+#    undef DestroyNotify
+#  endif
+#  if defined(UnmapNotify)
+#    undef UnmapNotify
+#  endif
+#  if defined(MapNotify)
+#    undef MapNotify
+#  endif
+#  if defined(MapRequest)
+#    undef MapRequest
+#  endif
+#  if defined(ReparentNotify)
+#    undef ReparentNotify
+#  endif
+#  if defined(ConfigureNotify)
+#    undef ConfigureNotify
+#  endif
+#  if defined(ConfigureRequest)
+#    undef ConfigureRequest
+#  endif
+#  if defined(GravityNotify)
+#    undef GravityNotify
+#  endif
+#  if defined(ResizeRequest)
+#    undef ResizeRequest
+#  endif
+#  if defined(CirculateNotify)
+#    undef CirculateNotify
+#  endif
+#  if defined(CirculateRequest)
+#    undef CirculateRequest
+#  endif
+#  if defined(PropertyNotify)
+#    undef PropertyNotify
+#  endif
+#  if defined(SelectionClear)
+#    undef SelectionClear
+#  endif
+#  if defined(SelectionRequest)
+#    undef SelectionRequest
+#  endif
+#  if defined(SelectionNotify)
+#    undef SelectionNotify
+#  endif
+#  if defined(ColormapNotify)
+#    undef ColormapNotify
+#  endif
+#  if defined(ClientMessage)
+#    undef ClientMessage
+#  endif
+#  if defined(MappingNotify)
+#    undef MappingNotify
+#  endif
+#endif