--- /n/sources/plan9/sys/include/libc.h	Wed Sep 18 22:45:28 2013
+++ /sys/include/libc.h	Sun Jun 28 00:00:00 2026
@@ -2,7 +2,7 @@
 #pragma	src	"/sys/src/libc"
 
 #define	nelem(x)	(sizeof(x)/sizeof((x)[0]))
-#define	offsetof(s, m)	(ulong)(&(((s*)0)->m))
+#define	offsetof(s, m)	(uintptr)(&(((s*)0)->m))
 #define	assert(x)	if(x){}else _assert("x")
 
 /*