--- include/EGL/eglplatform.h	2026-07-31 12:32:24.966836182 +0000
+++ include/EGL/eglplatform.h	2026-07-31 12:32:24.971836309 +0000
@@ -127,7 +127,10 @@
 
 #elif defined(__APPLE__)
 
-typedef int   EGLNativeDisplayType;
+/* Mesa's native displays on macOS are pointers: struct wl_display *
+ * for the Wayland platform, Display * for X11 (XQuartz). Khronos'
+ * 32-bit int would truncate them on LP64, so type them properly. */
+typedef void *EGLNativeDisplayType;
 typedef void *EGLNativePixmapType;
 typedef void *EGLNativeWindowType;