diff --git a/bfd/hosts/hppahpux.h b/bfd/hosts/hppahpux.h
index a7bf374e98c..f58bd7e2345 100644
--- a/bfd/hosts/hppahpux.h
+++ b/bfd/hosts/hppahpux.h
@@ -7,6 +7,9 @@
 #include <string.h>
 #include <sys/file.h>
 #include <memory.h>
+#include <stdlib.h>
+
+#define HOST_HPPAHPUX
 
 void free();
 
@@ -31,9 +34,6 @@ rename(from, to)
 }
 #endif
 
-extern PTR   EXFUN(malloc,(unsigned));
-extern PTR   EXFUN(realloc, (PTR, unsigned));
-
 /* EXACT TYPES */
 typedef char int8e_type;
 typedef unsigned char uint8e_type;