--- gcc/config/sh/xm-sh.h	2018/04/24 18:10:26	1.1.1.1
+++ gcc/config/sh/xm-sh.h	2018/04/24 18:16:28	1.1.1.2
@@ -31,6 +31,9 @@ the Free Software Foundation, 675 Mass A
 #define alloca __builtin_alloca
 #endif
 
+/* We have the vprintf function.  */
+#define HAVE_VPRINTF 1
+
 /* target machine dependencies.
    tm.h is a symbolic link to the actual target specific file.  */
 #include "tm.h"