diff --git a/bfd/hosts/dgux.h b/bfd/hosts/dgux.h
index 57351c26c4..7db80bfd50 100644
--- a/bfd/hosts/dgux.h
+++ b/bfd/hosts/dgux.h
@@ -1,7 +1,8 @@
 #include <errno.h>
+#include <sys/types.h>
 #include <sys/dg_c_generics.h>
 #include <unistd.h>
-#include <stdlib.h>
+
 #include <string.h>
 #include <fcntl.h>
 #include <sys/stat.h>
@@ -10,6 +11,16 @@
 
 #include <stdio.h>
 
+#ifndef DONTDECLARE_MALLOC
+extern PROTO(PTR,malloc,(unsigned));
+extern PROTO(PTR ,realloc, (PTR, unsigned));
+#endif
+extern PROTO(int, abort,(void));
+extern PROTO(int, free,(PTR));
+extern PROTO(void, bcopy,(char*,char*,int));
+extern PROTO(void, exit,(int));
+extern int strtol();
+extern PROTO(void, bzero,(char *, int));
 #define NO_STDARG 1