--- gcc/config/xm-hp320.h	2018/04/24 17:51:31	1.1.1.1
+++ gcc/config/xm-hp320.h	2018/04/24 17:53:46	1.1.1.2
@@ -11,3 +11,6 @@
 #ifndef __GNUC__
 #define USE_C_ALLOCA
 #endif
+
+/* Don't try to use sys_siglist.  */
+#define NO_SYS_SIGLIST