Index: sys/sys/cdefs.h
===================================================================
--- sys/sys/cdefs.h
+++ sys/sys/cdefs.h
@@ -774,7 +774,8 @@
 #endif
 #endif /* __STDC_WANT_LIB_EXT1__ */
 
-#if defined(__mips) || defined(__powerpc64__) || defined(__riscv)
+#if defined(__mips) || defined(__riscv) || \
+    (defined(__powerpc64__) && (!defined(_CALL_ELF) || _CALL_ELF == 1))
 #define	__NO_TLS 1
 #endif