diff -Naur libXt-1.2.1.org/include/X11/Xtos.h libXt-1.2.1.sw/include/X11/Xtos.h
--- libXt-1.2.1.org/include/X11/Xtos.h	2022-02-26 01:04:27.600000000 +0000
+++ libXt-1.2.1.sw/include/X11/Xtos.h	2022-02-26 01:05:17.470000000 +0000
@@ -55,6 +55,7 @@
 
 #if defined (_LP64) || \
     defined(__alpha) || defined(__alpha__) || \
+    defined(__sw_64) || defined(__sw_64__) || \
     defined(__ia64__) || defined(ia64) || \
     defined(__sparc64__) || \
     defined(__s390x__) || \