diff --git a/gdb/config/m88k/xm-delta88.h b/gdb/config/m88k/xm-delta88.h
index eb8e20b579..685d596c3f 100644
--- a/gdb/config/m88k/xm-delta88.h
+++ b/gdb/config/m88k/xm-delta88.h
@@ -24,14 +24,22 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define USG 1
 #endif
 
+#define TIOCGETC_BROKEN 1
+#define TIOCGLTC_BROKEN 1
+
 #include <sys/param.h>
 #include <sys/time.h>
 
+/* Required by <sys/ptrace.h>.  */
+#include <sys/siginfo.h>
+
 #define HAVE_TERMIO
 
 /*#define USIZE 2048*/
-#define NBPG NBPC
-#define UPAGES USIZE
+/*#define NBPG NBPC*/
+/* Might be defined in <sys/param.h>.  I suspect this define was a relic
+   from before when BFD did core files.  */
+/* #define UPAGES USIZE */
 
 /* This is the amount to subtract from u.u_ar0
    to get the offset in the core file of the register values.  */
@@ -42,3 +50,14 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 #define KERNEL_U_ADDR 0
 
+/* Like vprintf, but takes a a pointer to the args, laid out in order,
+   rather than a va_list.  */
+/* Does this really work, or is it just enough to get this to compile?  */
+#define VPRINTF(string, args) \
+  { \
+    __gnuc_va_list list; \
+    list.__va_arg = 0; \
+    list.__va_stk = (int *) args; \
+    list.__va_reg = (int *) args; \
+    vprintf (string, list); \
+  }