--- include/X11/Xtos.h	2024-11-17 12:44:07.000000000 +0800
+++ include/X11/Xtos.h	2024-11-23 00:32:22.000000000 +0800
@@ -64,7 +64,7 @@
     defined(__s390x__) || \
     (defined(__hppa__) && defined(__LP64__)) || \
     defined(__amd64__) || defined(amd64) || \
-    defined(__powerpc64__))
+    defined(__powerpc64__) || defined(__ppc64__)
 #define LONG64
 #endif